REPAIRING / SERVICING TV ROLSEN RCL-900

Technical description and composition of the ROLSEN RCL-900 TV, panel type and modules used. The composition of the modules.
ROLSEN
Model: RCL-900
Panel: HN CMI-9D
T-CON: KSD951S-S202KD-MAIN-V1.0
Inverter (backlight): 8202KD-9D.PCB
PWM Inverter: OB3HT (2)
Power Supply (PSU): adaptop 10v
MainBoard: MAIN_PCB
IC MainBoard: 25Q16BS1G, 2952A, E13c1, MC6019,5218 (ES348314), KSD951S-8202KD-V1.0, SPHE8202K
Appearance
ROLSEN RCL-900
General recommendations for TV LCD repair
Repair and diagnostics of any electronic device, in particular ROLSEN with a chassis, it is advisable to begin with a careful external examination of the internal and external elements. Specific external damage to some elements can sometimes indicate further actions to determine the malfunction of the TV and localize the defect before starting the necessary measurements. Electrolytic capacitors of filters with a swollen case, as well as ring cracks formed in the soldering of the leads of heating elements or a layer of coal on burned out resistors sometimes prompt the repairman about the causes of the malfunction and the possible consequences.
In the absence of any signs of operability, when the ROLSEN RCL-900 does not turn on and does not signal anything with the control lamps on the panel, there is a possibility of malfunction of the adaptop 10v power supply module of the TV. With the same manifestations, the power regulator of the control processor on the motherboard may be faulty. Diagnostics and repair of the common power supply should always begin with checking the mains fuse and the condition of the electrolytic capacitors of the secondary rectifier filters. Defective and swollen capacitors should be replaced with new ones. If the fuse breaks, it is advisable to check for breakdown, first of all, all the power semiconductor elements of the converter and the diode bridge of the mains rectifier, as well as the large electrolytic capacitor of the mains rectifier filter.
As a rule, switches in switching power supplies (SMPS) are quite reliable and rarely fail without reasons that should be looked for by checking other components of the circuit - electrolytic capacitors, resistors and semiconductor elements of the primary circuit. The PWM microcircuit is checked by replacing it with a known good one.
If, when you turn on the TV, the image appears and immediately disappears, or is absent initially when turned on, but there is sound and other functions work, there is a high probability of a malfunction of the inverter (backlight power converter). In such cases, the lamps, the inverter and the common power supply module must be checked, in which the electrolytic capacitors of the rectifier filter supplying the inverter must be checked. It should be remembered that when the protection is turned off in order to diagnose a malfunction, there is always a risk of failure of the power elements of the inverter. After repair, it is imperative to restore all standard converter protection circuits.

Complicated repair of MB (SSB) board is in some cases possible and practiced by repairmen. To do this, check and, if necessary, replace elements 25Q16BS1G, 2952A, E13c1, MC6019.5218 (ES348314), KSD951S-8202KD-V1.0, SPHE8202K. Malfunctions in BGA chips are usually easy to detect by warm-up.

Remember! Attempts to repair the ROLSEN RCL-900 TV, in the absence of the necessary qualifications and experience, are categorically not recommended and are fraught with negative consequences, up to the complete non-repairability of the device!

The main features of the ROLSEN RCL-900 device:
Installed matrix (LCD-panel) HN CMI-9D.
Matrix control uses the Timing Controller (T-CON) KSD951S-S202KD-MAIN-V1.0.
To power the backlight lamps, the 8202KD-9D.PCB inverter is used, controlled by the OB3HT PWM controller (2).
The formation of the necessary supply voltages for all nodes of the ROLSEN RCL-900 TV is carried out by the adaptop power supply module, or its analogs.
MainBoard - the main board (motherboard) is a MAIN_PCB module, using chips 25Q16BS1G, 2952A, E13c1, MC6019,5218 (ES348314), KSD951S-8202KD-V1.0, SPHE8202K and others.

REPAIRING / SERVICING TV ROLSEN RL-19A09105

Technical description and composition of the ROLSEN RL-19A09105 TV, panel type and modules used. The composition of the modules.
ROLSEN
Model: RL-19A09105
Chassis / Version: RSAG7.820.1701
Panel: HT185WX1-100
Lamp backlight: 2 LAMP CCFL
Inverter (backlight): integrated into PSU
PWM Inverter: KA7500C
MOSFET Inverter: AO4616
Power Supply (PSU): HLP-12B11
PWM Power: SG6859ADZ
MOSFET Power: FQPF3N80C
MainBoard: RSAG7.820.1701 / ROH VER.C
IC MainBoard: SPI Flash: 25L1605DM, EEPROM: 24C04, 24C64
Tuner: TDQ-6FT / W126H / ROH
Specifications RL-19A09105
ROLSEN RL-19A09105
General recommendations for TV LCD repair
Possible manifestations of defects
- The ROLSEN RL-19A09105 TV does not turn on at all. Control lamps do not light up or blink. The TV on the remote control and control panel buttons does not respond.
With similar manifestations, a malfunction is most likely found in the power module. It is necessary to make sure that its output voltages are present and, if they are completely absent, check the power switches (FQPF3N80C) and rectifier diodes for a possible short circuit.
In case of breakdowns of semiconductors in the secondary circuits, the converter can usually work in an emergency in the short-circuit mode, and with a short circuit in the power elements of the primary circuit, the mains fuse often breaks.
Breakdown of Mos-Fet switches used in switching power supplies is often caused by malfunctions of other elements, for example, in the power supply circuit of the PWM controller, in frequency setting or damper circuits, as well as in negative feedback stabilization. PWM microcircuits (PWM) SG6859ADZ are usually checked by replacing them with new ones, or knowingly working.
- There is no image, there is sound, it reacts to the remote control. Or, immediately after switching on for a second, the image may appear and immediately disappear.
The defect can be caused by problems in the nodes or elements of the display backlight, or in the power supply of the lamps or the inverter.If all the electrolytic capacitors of the filter for the power supply of the inverter are in good working order, you should make sure that the lamps are in good condition, then you need to check the converter keys and the secondary windings of the transformers.
Sometimes, for diagnostic purposes, it is necessary to disable the inverter protection. In such cases, special care must be taken during work, and the protective circuits must be restored immediately after the repair is completed.
- The TV does not turn on, the indicator signals the standby or operating mode, or blinks.
Repair or diagnostics of the RSAG7.820.1701 motherboard should begin with checking the stabilizers and power converters required to power the microcircuits and matrix. If necessary, you should update or replace the software (software). In some cases, to repair the MB (SSB) board, it may be necessary to replace the chips - SPI Flash: 25L1605DM, EEPROM: 24C04 with new or known working ones. In cases where BGA technologies are used, defects are usually localized by heating.
Before changing the TDQ-6FT / W126H / ROH tuner, if it is not possible to tune to TV channels, you should make sure that there are supply voltages, which must be measured at the corresponding tuner pins and check the software for correctness. The pulses of the data exchange of the tuner with the processor can be monitored with an oscilloscope

Users and owners of TVs should remember that attempts to self-repair the ROLSEN RL-19A09105 TV without the appropriate qualifications and the necessary experience can lead to serious negative consequences!

DOWNLOAD FIRMWARE FOR SPI FLASH  ----------->  EEPROM ROLSEN RL-19A09105, Main: RSAG7.820.1701 /ROH VER.C, Panel: HT185WX1-100

 The appearance of the MainBoard RSAG7.820.1701 is shown in the figure below:
RSAG7.820.1701
External view of the power supply
The main features of the ROLSEN RL-19A09105 device:
Installed matrix (LCD panel) HT185WX1-100.
A converter combined with a power supply is used to power the backlight lamps, it is controlled by a KA7500C PWM controller. The keys of the AO4616 type are used as power elements of the inverter.
The formation of the necessary supply voltages for all nodes of the ROLSEN RL-19A09105 TV is carried out by the HLP-12B11 power module, or its analogs using SG6859ADZ microcircuits and FQPF3N80C power switches.
MainBoard - the main board (motherboard) is an RSAG7.820.1701 module, using SPI Flash chips: 25L1605DM, EEPROM: 24C04, 24C64 and others.
The TDQ-6FT / W126H / ROH tuner provides reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: BOE
Model: HT185WX1-100
Type: a-Si TFT-LCD, Panel
Diagonal size: 18.5 inch
Resolution: 1366x768, WXGA
Display Mode: TN, Normally White, Transmissive
Active Area: 409.8x230.4 mm
Surface: Antiglare (Haze 25%), Hard coating (3H)
Brightness: 250 cd / m²
Contrast Ratio: 1000: 1
Display Colors: 16.7M (6-bit + Hi-FRC), CIE1931 72%
Response Time: 1.5 / 3.5 (Tr / Td)
Frequency: 60Hz
Lamp Type: 2 pcs CCFL Without Driver
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 5.0V
ROLSEN RL-19A09105 TV with LCD HT185WX1-100, 19 "(48 cm) 16: 9. Brightness of the screen 300 cd / m² provided by CCFL (EEFL) fluorescent lamps. Contrast as the ratio of maximum brightness to the minimum is 1000: 1. It is possible to view images in high quality HD at a resolution of 1366x768 pixels in the standard of graphic decomposition 720p (HD Ready) .Input high-frequency or video signal can be processed in analog systems PAL, SECAM, NTSC. Graphic processing and digital signal formation comes in the standards 480i, 480p, 576i, 576p, 720p, 1080i. Stereo sound is realized by two built-in speakers. The audio processing system NICAM STEREO is used.
External interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, audio x2, S-Video, component, SCART, VGA, HDMI, USB. A headphone output is provided. To connect a computer or laptop to this TV model, use the VGA (D-Sub 15) connector on the TV case, this interface supports resolutions: 640x480, 800x600, 1024x768.
The power consumed by the TV in operating mode from the network is 40 watts.
Dimensions: with stand 468x355x168 mm, without stand 468x315x72 mm.
TV weight: 6 kg.
Attention! ROLSEN RL-19A09105 LCD TV panel HT185WX1-100 is the most expensive component.
Avoid hitting the glass and putting pressure on the screen surface to avoid irreversible damage to the LCD panel!

REPAIRING / SERVICING TV ROLSEN RL-19B01

Technical description and composition of the ROLSEN RL-19B01 TV, panel type and modules used. The composition of the modules.
ROLSEN
Model: RL-19B01
Chassis / Version: RSAG7.820
Panel: HT190WG1-600
Inverter (backlight): Backlight Inverter-JSI-190411A
PWM Inverter: BIT3105
Power Supply (PSU): JSI-190411 A
PWM Power: SG5841SZ (SO8)
MainBoard: RSAG7.820.1653 VER.A
IC MainBoard: MST9E19B-LF, F40-100GCP (EN25F40), K24C32, ATMLH914 04B (24C04), 24C02, TDA9886TS, CD1517CP, DC-DC - Z1015AI
Tuner: TDQ6FT / W126H / ROH
RL-19B01 Specifications
ROLSEN RL-19B01
General recommendations for TV LCD repair
ROLSEN TV made on the RSAG7.820 chassis, like many other electronic devices, it is advisable to start repairing with an inspection of all external and internal elements. Often, according to certain external signs, it may be possible to draw certain conclusions about the reasons for the failure of certain elements of the circuit even before taking the necessary measurements, which will make it possible to determine a further algorithm for troubleshooting and localizing a defect. Ring cracks in the soldering of the leads of the heating elements, swollen electrolytic capacitors, a charred layer of paint on the resistors - all this for the repairman can be a significant clue in assumptions about the causes and consequences of a malfunction.
In cases where the ROLSEN RL-19B01 TV does not turn on, does not respond to the remote control and buttons, no indicators on the front panel light or blink, and there are no sounds and no signs of operability when turned on, the JSI-190411A power supply module is most likely faulty or there is no power supply to the processor on the motherboard (a typical defect of some ROLSEN TV models). When diagnosing and repairing the power supply, first of all, replace the swollen capacitors of the secondary rectifier filter and check the fuse and, if it is broken, the cause must be identified. Often in such cases an avalanche (thermal) breakdown is detected in the power semiconductor elements of the module - rectifier diodes and transistors in the primary circuit.
The reasons for the breakdown of the power switch in switching power supplies (SMPS) can be different, for example, a malfunction of semiconductor elements or electrolytic capacitors in the stabilization circuits of the primary circuit, as well as a failure in the operation of a PWM regulator microcircuit or breaks in resistors in its strapping.
Sometimes the ROLSEN RL-19B01 TV does not have an image, but there is sound, or the image appears and immediately disappears. In this case, there is a high probability of a malfunction of the backlight converter, or the lamps themselves, which can be checked by replacing. In such cases, it is necessary to make sure that all electrolytic capacitors of the filter are in good working order for the power supply of the inverter itself, including in the power supply unit (power supply unit). All necessary precautions must be taken when disabling the inverter protection during diagnostics and do not leave it disabled after repair is completed.
Repair of the RSAG7.820.1653 VER.A motherboard must begin with diagnostics and testing of all linear stabilizers or power converters of its microcircuits. Sometimes it may be necessary to update the software (software) - flashing FLASH or EEPROM. Complicated repair of MB (SSB) board is in some cases possible and practiced by repairmen. To do this, check and, if necessary, replace elements MST9E19B-LF, F40-100GCP (EN25F40), K24C32, ATMLH914 04B (24C04), 24C02, TDA9886TS, CD1517CP, DC-DC - Z1015AI. Malfunctions in BGA chips are usually easy to detect by warm-up.

Attention to users! Self-repair of the ROLSEN RL-19B01 TV without proper qualifications and experience can lead to its complete non-repairability!

DOWNLOAD FIRMWARE FOR SPI FLASH  ----------->   ROLSEN RL-19B01, Main: RSAG7.820.1653 VER.A, Panel: HT190WG1-600

Brand: ROLSEN, Model: RL-19B01.
Briefly from the TV: LCD, 19 ", 1440x900, 720p HD, sound: 4 W.

 The appearance of the MainBoard MST6M182VG-T7S is shown in the figure below:
MST6M182VG-T7S can be used in TVs:
DAEWOO DSL-24L31E (Panel K236WL), ERISSON 23LEK14 (Panel 1080p Full HD 1920x1080), ERISSON 19LEK14 (Panel M185BGE-L22 Rev.C1), HYUNDAI H-LED22V5 (Panel LM215WF4), HYUNDAI H-LED24V11 (Panel LM230WF5 (TL)(D1) ), ROLSEN RL-17L1002U (Panel LTN173KT02 ), RUBIN RB-19SL1U WH (Panel 19 ").
External view of the power supply
The main features of the ROLSEN RL-19B01 device:
Installed matrix (LCD panel) HT190WG1-600.
The backlight inverter is used to power the backlight lamps, controlled by the BIT3105 PWM controller.
The formation of the necessary supply voltages for all nodes of the ROLSEN RL-19B01 TV is carried out by the JSI-190411 power module, or its analogs using SG5841SZ (SO8) microcircuits.
MainBoard - the main board (motherboard) is an RSAG7.820.1653 module, using microcircuits MST9E19B-LF, F40-100GCP (EN25F40), K24C32, ATMLH914 04B (24C04), 24C02, TDA9886TS, CD1517CP, DC-DC - Z1015AI ...
The TDQ6FT / W126H / ROH tuner provides reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: BOE
Model: HT190WG1-600
Type: a-Si TFT-LCD, Panel
Diagonal size: 19.0 inch
Resolution: 1440x900, WXGA +
Display Mode: TN, Normally White, Transmissive
Active Area: 408.24x255.15 mm
Surface: Antiglare (Haze 25%), Hard coating (3H)
Brightness: 300 cd / m²
Contrast Ratio: 1000: 1
Display Colors: 16.7M (6-bit + Hi-FRC), CIE1931 72%
Response Time: 1.5 / 3.5 (Tr / Td)
Frequency: 60Hz
Lamp Type: 4 pcs CCFL Without Driver
Signal Interface: LVDS (2 ch, 8-bit), 30 pins
Voltage: 5.0V
ROLSEN RL-19B01 TV with LCD display HT190WG1-600, 19 "(48 cm) diagonal, 16:10 aspect ratio. Screen brightness of 300 cd / m² provided by CCFL (EEFL) fluorescent lamps. Contrast as the ratio of maximum brightness to minimum, is 700: 1. It is possible to view images in high quality HD at a resolution of 1440x900 pixels in the standard of graphic decomposition 720p (HD Ready) .Input high-frequency or video signal can be processed in analog systems PAL, SECAM, NTSC. Graphic processing and digital signal formation takes place in 480i, 480p, 576i, 576p, 720p, 1080i standards.
Speaker power 4 W (2x2 W) is provided by two speakers. The NICAM STEREO audio processing system is used.
External interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, audio x3, S-Video, component, RGB, VGA. A headphone output is provided. To connect a computer or laptop to this TV model, use the VGA (D-Sub 15) connector on the TV case, this interface supports resolutions: 640x480, 800x600, 1024x768.
The power consumed by the TV in operating mode from the mains is 60 W.
Dimensions: with stand 479x392x200 mm, without stand 479x323x90 mm.
TV weight: without stand: 5 kg.
Attention! ROLSEN RL-19B01 LCD TV panel HT190WG1-600 is the most expensive component.
Avoid hitting the glass and putting pressure on the screen surface to avoid irreversible damage to the LCD panel!

REPAIRING / SERVICING TV ROLSEN RL-20D20

Technical description and composition of the ROLSEN RL-20D20 TV, panel type and modules used. The composition of the modules.
ROLSEN
Model: RL-20D20
Chassis / Version: PLVM01
Panel: 20 inch
MainBoard: PLVM01
IC MainBoard: VCT49X3R, MLT015GF, A29040BL, TDA7266
Tuner: TECH2949PS40A
RL-20D20 Specifications
ROLSEN RL-20D20
General recommendations for TV LCD repair
It is advisable to start repairing a ROLSEN TV with a TV-DVD chassis with a careful external examination of both internal and external elements. In some cases, visible external damage to elements can suggest directions for troubleshooting and localizing a defect even before the necessary measurements are taken at the control points of electronic circuit assemblies. Experienced repairmen often guess about the causes of the defect and the possible consequences, for example, by ring cracks in the soldering of the element terminals, as well as by swollen capacitors or resistors burnt out to coal dust and other external indirect signs.
In the case when the RL-20D20 does not turn on, does not respond to the remote control and front panel buttons, does not blink light bulbs and does not show any signs of operability, the power module is probably faulty in this case. If it is working properly with such manifestations, it is necessary to check the processor power regulator (converter) on the motherboard.In general, first of all, it is necessary to check the electrolytic capacitors of the secondary rectifier filters and the fuse at the mains input. If it is cut off, then the diodes of the rectifier bridge and the key transistor of the converter, which can be located either on a separate heatsink or integrated with a PWM controller into a common microcircuit, should be checked for a breakdown of PN junctions. Options are possible.
The reasons for the breakdown of the power switch in switching power supplies (SMPS) can be different, for example, a malfunction of semiconductor elements or electrolytic capacitors in the stabilization circuits of the primary circuit, as well as a failure in the operation of a PWM regulator microcircuit or breaks in resistors in its strapping.
If, when you turn on the TV, the image appears and immediately disappears, or is absent initially when turned on, but there is sound and other functions work, there is a high probability of a malfunction of the inverter (backlight power converter). In such cases, the lamps, the inverter and the common power supply module must be checked, in which the electrolytic capacitors of the rectifier filter supplying the inverter must be checked. When disabling the protection of the inverter (to enable diagnostics), special care must be taken due to the risk of failure of the power elements. After the completion of all repair work, it is imperative to restore the protection circuits for the full and safe further operation of the TV by the user.
Complicated MB (SSB) repair is possible only in the conditions of a service center with the necessary equipment. Checking or replacing CPU elements: TW8801, Sound: STV8216, TDA8266D requires the necessary training and professional skills in repairing modules at the component level. Problems associated with BGA soldering technologies can be diagnosed by the warm-up method.

Remember! Attempts of self-repair by users of the ROLSEN RL-20D20 TV without the appropriate qualifications and the necessary experience can lead to serious negative consequences!

DOWNLOAD SCHEMATIC DIAGRAM  / SERVICE MANUAL   ------------------>    ROLSEN RL-20D20

 The appearance of the MainBoard PLVM01 is shown in the figure below:
PLVM01
The main features of the ROLSEN RL-20D20 device:
Installed matrix (LCD-panel) 20 inches.
The necessary supply voltages for all nodes of the ROLSEN RL-20D20 TV are provided by a switching power supply.See voltages in picture.
MainBoard - the main board (motherboard) is a PLVM01 module, using VCT49X3R, MLT015GF, A29040BL, TDA7266 and others.
Tuner TECH2949PS40A provides reception of TV programs and tuning to channels.
ROLSEN RL-20D20 LCD TV with 20 "diagonal 4: 3 format. Screen brightness of 500 cd / m² is provided by CCFL (EEFL) fluorescent lamps. Contrast, as the ratio of maximum brightness to minimum, is 500: 1. The input high-frequency or video signal can be processed in analog systems PAL, SECAM, NTSC.Graphic processing and digital signal shaping takes place in the 480i, 480p, 576i, 576p standards.
Speaker power of 6 W (2 x 3 W) is provided by two speakers. The NICAM STEREO audio processing system is used.
External interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, audio x2, S-Video, SCART x2, RGB, VGA. A headphone output is provided. To connect a computer or laptop to this TV model, use the VGA (D-Sub 15) connector on the TV case, this interface supports resolutions: 640x480.
The power consumed by the TV in operating mode from the network is 60 watts.
Dimensions: with stand 510x480x240 mm, without stand 510x435x86 mm.
TV weight: 8.5 kg.
Attention! The ROLSEN RL-20D20 LCD TV panel is its most expensive component.
Avoid hitting the glass and putting pressure on the screen surface to avoid irreversible damage to the LCD panel!

REPAIRING / SERVICING TV ROLSEN RL-20D40

Technical description and composition of the ROLSEN RL-20D40 TV, panel type and modules used. The composition of the modules.
ROLSEN
Model: RL-20D40
Chassis / Version: PLVM01
Panel: LC201V02
MainBoard: PLVM01
IC MainBoard: CPU: VCT49X3R F2 208010.000, MLT015GF; DC / DEC: 2576-3.3, 8050SD, AS1117 / 1.8; 2.5; 3.3 /, EPROM - A29040BL, EEPROM - A51CS, A21CS; Sound - TDA7266 P15V330WE
Tuner: TECH2949PS40A
RL-20D40 Specifications
ROLSEN RL-20D40
General recommendations for TV LCD repair
Repair of electronic equipment usually begins with its external examination and diagnosis of a malfunction. In this case, you should inspect all internal elements of the PLVM01 chassis, as well as external hull ones. Based on visible changes in the state of components, it is usually possible to determine the further direction of troubleshooting and localization of the defect before taking the necessary measurements. In some cases, defective elements are visible with the naked eye, for example, charred resistors or swollen sintered capacitors, or electrolytic ones in rectifier filters. The formed ring cracks in the soldering of the terminals of transformers or heating circuit elements are also frequent sources of many malfunctions with a variety of external manifestations.
In the absence of any signs of operability, when the ROLSEN RL-20D40 does not turn on and does not signal anything with the control lamps on the panel, there is a possibility of a malfunction of the TV power supply module. The power supply regulator of the control processor on the motherboard may also be faulty with the same manifestations. In general, first of all, it is necessary to check the electrolytic capacitors of the filters of the secondary rectifiers and the fuse at the mains input. If it is cut off, then the diodes of the rectifier bridge and the key transistor of the converter, which can be located either on a separate heatsink or integrated with a PWM controller into a common microcircuit, should be checked for a breakdown of PN junctions. Options are possible.
If a breakdown of the power switch is detected, it should be remembered that in a switching power supply (SMPS) it does not fail by itself without reasons that should be looked for by checking other elements of the primary circuit - electrolytic capacitors, a PWM controller, which can only be checked replacement, as well as other semiconductor elements (diodes, transistors, zener diodes).
Sometimes the ROLSEN RL-20D40 TV does not have an image, but there is sound, or the image appears and immediately disappears. In this case, there is a high probability of a malfunction of the backlight converter, or the lamps themselves, which can be checked by replacing. In such cases, it is necessary to make sure that all electrolytic capacitors of the filter are in good working order for the power supply of the inverter itself, including in the power supply unit (power supply unit). When turning off the protection in order to ensure the possibility of diagnosing a malfunction, special care should be taken, and after all repair work is completed, it is imperative to restore the circuits and the operation of the inverter protection for further safe operation of the TV.
When trying to repair the motherboard, you should first check the serviceability of linear stabilizers or microcircuit power converters and, if necessary, update the software (software). In some cases, the elements of the MB (SSB) board require checking or replacing (if necessary) - CPU: VCT49X3R F2 208010.000, MLT015GF; DC / DEC: 2576-3.3, 8050SD, AS1117 / 1.8; 2.5; 3.3 /, EPROM - A29040BL, EEPROM - A51CS, A21CS; Sound - TDA7266 P15V330WE. In cases where a BGA processor is used, its malfunction is usually detected by a local warm-up method.

Attention to users! Self-repair of the ROLSEN RL-20D40 TV without appropriate qualifications and experience can lead to its complete non-repairability!

Additional MainBoard Repair
The appearance of the MainBoard PLVM01 is shown in the figure below:
PLVM01
The main features of the ROLSEN RL-20D40 device:
Installed matrix (LCD-panel) LC201V02.
The necessary supply voltages for all nodes of the ROLSEN RL-20D40 TV are provided by a switching power supply.(See voltages in picture)
MainBoard - the main board (motherboard) is a PLVM01 module, using CPU chips: VCT49X3R F2 208010.000, MLT015GF; DC / DEC: 2576-3.3, 8050SD, AS1117 / 1.8; 2.5; 3.3 /, EPROM - A29040BL, EEPROM - A51CS, A21CS; Sound - TDA7266 P15V330WE and others.
Tuner TECH2949PS40A provides reception of TV programs and tuning to channels.
Additional technical information about the panel:
Brand: LG.Philips LCD
Model: LC201V02-SDA3
Type: a-Si TFT-LCD, Panel
Diagonal size: 20.1 inch
Resolution: 640x480, VGA
Display Mode: IPS, Normally Black, Transmissive
Active Area: 408x306 mm
Surface: Antiglare, Hard coating (3H)
Brightness: 450 cd / m²
Contrast Ratio: 800: 1
Display Colors: 16.7M (8-bit)
Response Time: 12/13 (Tr / Td)
Frequency: 60Hz
Lamp Type: 6 pcs CCFL Without Driver
Signal Interface: CMOS (1 ch, 8-bit), 41 pins
Voltage: 12.0V


ROLSEN RL-20D40 TV with LCD display LC201V02, diagonal size 20 "4: 3. The brightness of the screen is 450 cd / m2 provided by CCFL (EEFL) fluorescent lamps. Contrast, as the ratio of maximum brightness to minimum, is 800: 1 The input high-frequency or video signal can be processed in analog systems PAL, SECAM, NTSC.Graphic processing and digital signal shaping takes place in the 480i, 480p, 576i, 576p standards.
Speaker power 6 W (2x3W) is provided by two speakers. The NICAM STEREO audio processing system is used.
External interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, audio x2, S-Video, SCART, RGB, VGA. A headphone output is provided. To connect a computer or laptop to this TV model, use the VGA (D-Sub 15) connector on the TV case, this interface supports resolutions: 640x480.
Dimensions: with stand 510x480x240 mm, without stand 510x435x86 mm.
TV weight: with stand: 9.5 kg, without stand: 8.5 kg.
Attention! ROLSEN RL-20D40 LCD TV panel LC201V02 is its most expensive component.
Avoid hitting the glass and putting pressure on the screen surface to avoid irreversible damage to the LCD panel!

REPAIRING / SERVICING TV ROLSEN RL-20X30

Technical description and composition of the ROLSEN RL-20X30 TV, panel type and modules used. The composition of the modules.
ROLSEN
Model: RL-20X30
Chassis / Version: PLVM01
Panel: LC201V02 (SD) (B1)
Lamp backlight: 6 Lamp CCFL
Inverter (backlight): AT-6201LG12 (BIT) Rev. C
PWM Inverter: FAN7311
MOSFET Inverter: P2803NVG (8) ZEP17000
Trans Inverter: KE-200BFCC0703
Power Supply (PSU): adapter 12v / 5a HASU12FB, FC-6000, + 12v = 6000ma
PWM Power: STK8050SD
MainBoard: PLVM01_DPPB10254S RHPB-10254F (RHMA-M0126C sticker)
IC MainBoard: VCT49XYI, A29040AL (DMT7-11-26 TV), MTL015GF, TDA7266D, TECH2949PG40B (D)
Tuner: TECH2940A (D)
Control: LC03-AR028A
RL-20X30 Specifications
ROLSEN RL-20X30
General recommendations for TV LCD repair
Repair and diagnostics of any electronic device, in particular ROLSEN with PLVM01 RHPB-10254F chassis (RHMA-M0126C sticker), it is advisable to start with a careful external examination of the internal and external elements. Specific external damage to some elements can sometimes indicate further actions to determine the malfunction of the TV and localize the defect before starting the necessary measurements. If charred resistors, swollen electrolytic or sintered capacitors, ring cracks in the soldering of the terminals of transformers or heating elements are found, it is advisable to establish the causes and consequences of the malfunction, as well as to check the connected elements and assemblies.
Malfunctions of the adapter 12v / 5a HASU12FB, FC-6000, + 12v = 6000ma power supply module can be expressed in different ways, for example, ROLSEN RL-20X30 does not turn on at all and the control lamps on its front panel do not light up or blink, all signs of operability are missing. It should be noted that the processor power regulator (converter) may be faulty with the same external manifestations. When repairing a power supply, it is advisable to start diagnostics with checking the mains fuse and electrolytic capacitors of the filters of the secondary rectifiers of the converter. In the event of a break in the fuse, the cause should be sought in the power semiconductor elements of the pulse converter of the main power supply unit. First of all, it is necessary to check the diodes of the rectifier bridge of the mains voltage and the power switch (s) of the converter.
The reasons for the breakdown of the power switch in switching power supplies (SMPS) can be different, for example, a malfunction of semiconductor elements or electrolytic capacitors in the stabilization circuits of the primary circuit, as well as a failure in the operation of the DC-DC 2576-33 PWM regulator microcircuit. STK8050SD. or breaks of resistors in its strapping.

If ROLSEN RL-20X30 has no image, but there is sound, there is a possibility of a malfunction of the backlight lamps or their power converter. You should also make sure that the electrolytic capacitors of the secondary rectifiers of the common power supply are in good condition. It must be borne in mind that in the event of a disconnection of the inverter protection (for the purpose of diagnostics) there is a risk of failure of the power elements of the inverter and take special care. After carrying out repair work, the protection circuits must be restored for the further safe operation of the TV.

Repair or diagnostics of the motherboard DPPB10254S main PLVM01 // RHPB-10254F (Sticker RHMA-M0126C) should start with checking the stabilizers or power converters of its microcircuits. If necessary, you should update the software (software). In cases of attempts to repair the MB (SSB) board, it is necessary to check the serviceability of its elements - VCT49XYI, A29040AL (DMT7-11-26 TV), MTL015GF, TDA7266D, TECH2949PG40B (D) which may require replacement with new ones. If a BGA processor is installed, there is a possibility of a violation of the soldering of the contacts of its pins with the board (detected by warming up).

Attention to the owners! Attempts to repair the ROLSEN RL-20X30 TV on your own are not recommended by the manufacturer and can lead to serious negative consequences!

DOWNLOAD FIRMWARE FOR SPI EEPROM FLASH  ----------->   ROLSEN RL-20X30, Main: PLVM01 DPPB10254S, Panel: LC201V02 (SD)(B1)

 
 The appearance of the MainBoard PLVM01_DPPB10254S is shown in the figure below:
PLVM01_DPPB10254S
The main features of the ROLSEN RL-20X30 device:
Installed matrix (LCD panel) LC201V02 (SD) (B1).
To power the backlight lamps, an AT-6201LG12 (BIT) inverter is used, controlled by the FAN7311 PWM controller. The transformer KE-200BFCC0703 is installed in the inverter converter. The keys of the P2803NVG (8) ZEP17000 type are used as power elements of the inverter.
To power all internal nodes of the ROLSEN RL-20X30 TV, an external source such as adapter 12v / 5a HASU12FB, FC-6000, + 12v = 6000ma is used using STK8050SD microcircuits.
MainBoard - the main board (motherboard) is a PLVM01_DPPB10254S module, using VCT49XYI, A29040AL (DMT7-11-26 TV), MTL015GF, TDA7266D, TECH2949PG40B (D) and others.
Tuner TECH2940A (D) provides reception of television programs and tuning to channels.
Information from an alternative source:
Rolsen RL-20X30 / Rolsen RL-20X31 (without DVD) Central board :, Model: PLVM01, Code No: RHPB-10254F (RHMA-M0126C sticker), Board composition: VCT49XYI, A29040AL (DMT7-11-26 TV), MTL015GF , TDA7266D, TECH2949PG40B (D), Matrix - LC201V02 (SD) (B1), Inverter - AT-6201LG12 (BIT) Rev.C: FAN7311 \ G52, P2803NVG \ ZEP17000, Transformers 6pcs. - KE-200B \ FCC0703, External power supply - Model - FC-6000, + 12v = 6000ma, Remote control - LC03-AR028A
Additional technical information about the panel:
Brand: LG.Philips LCD
Model: LC201V02-SDB1
Type: a-Si TFT-LCD, Panel
Diagonal size: 20.1 inch
Resolution: 640x480, VGA
Display Mode: IPS, Normally Black, Transmissive
Active Area: 408x306 mm
Surface: Antiglare, Hard coating (3H)
Brightness: 450 cd / m²
Contrast Ratio: 800: 1
Display Colors: 16.7M (8-bit)
Response Time: 12/13 (Tr / Td)
Frequency: 60Hz
Lamp Type: 6 pcs CCFL Without Driver
Signal Interface: CMOS (1 ch, 8-bit), 41 pins
Voltage: 12.0V.


TV ROLSEN RL-20X30 with LCD display LC201V02, diagonal size 20 "4: 3. The brightness of the screen is 450 cd / m2 provided by backlighting CCFL (EEFL) fluorescent lamps. Contrast, as the ratio of maximum brightness to minimum, is 800: 1 .Input high-frequency or video signal can be processed in analog systems PAL, SECAM, NTSC. Graphic processing and digital signal shaping occurs in 480i, 480p, 576i, 576p standards. Supported multimedia file formats: MP3, WMA, MPEG4, VideoCD, SVCD, Picture CD, JPEG.
Speaker power 6 W (2x3 W) is provided by two speakers. The NICAM STEREO audio processing system is used.

External interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, audio x2, S-Video, SCART, RGB, VGA. A headphone output is provided. To connect a computer or laptop to this TV model, use the VGA (D-Sub 15) connector on the TV case, this interface supports resolutions: 640x480, 800x600, 1024x768.

Dimensions: with stand 510x479x240 mm, without stand 510x433x88 mm.
TV weight: 9 kg.


Attention! ROLSEN RL-20X30 LCD TV panel LC201V02 (SD) (B1) is the most expensive component.
Avoid hitting the glass and putting pressure on the screen surface to avoid irreversible damage to the LCD panel!

REPAIRING / SERVICING TV ROLSEN RL-20X31

Technical description and composition of the ROLSEN RL-20X31 TV, panel type and modules used. The composition of the modules.
ROLSEN
Model: RL-20X31
Chassis / Version: PLVM01
Panel: LC201V02 (SD) (B1)
T-CON: LC201V02-SDA1
Inverter (backlight): AT-6201LG12 (BIT) Rev. C
PWM Inverter: FAN7311 / G52 / P2803NVG / ZEP17000
MainBoard: PLVM01
IC MainBoard: CPU: VCT49X3R F2 208010.000, MLT015GF; DC / DEC: 2576-3.3, 8050SD, AS1117 / 1.8; 2.5; 3.3 /, EPROM - A29040BL, EEPROM - A51CS, A21CS; Sound - TDA7266 P15V330WE
Tuner: TECH2949PS40B
RL-20X31 Specifications
ROLSEN RL-20X31
General recommendations for TV LCD repair
It is advisable to start repairing a ROLSEN TV with a PLVM01 chassis with a careful external examination of both internal and external elements. It often happens that visible damage to elements or connections helps determine the direction of troubleshooting. If ring cracks are found in the soldering of the element terminals or broken connecting tracks, swollen capacitors or charred resistors - all this may be characteristic signs of the causes or consequences of an already known typical malfunction.
If the RL-20X31 TV does not turn on, does not emit any sounds when turned on, as well as no indicators on the front panel are lit or blinking, there is a high probability of a malfunction in the power module. In some cases, only the stabilizer or power converter of the control processor may be faulty, which is typical for some ROLSEN models. When diagnosing and repairing the power supply, after replacing the swollen capacitors of the secondary rectifier filters (if any), you must first check the mains fuse. If it breaks, the power elements of the transistors and diodes of the rectifier bridge should be checked for avalanche (thermal) breakdown.
Mos-Fet switches used in switching power supplies (SMPS) rarely fail without reasons that must be looked for by checking other circuit elements. Breakdown is often caused by malfunctions of electrolytic capacitors or semiconductor elements in the primary circuit, or breakdown of resistors in stabilization circuits. The PWM controller microcircuit can also cause the breakdown of the power switch of the converter.
If, when turning on the TV, the image appears and immediately disappears, or is absent initially when turned on, but there is sound and other functions work, there is a high probability of a malfunction of the inverter (backlight power converter). In such cases, the lamps, the inverter and the common power supply module must be checked, in which the electrolytic capacitors of the rectifier filter supplying the inverter must be checked. It should be remembered that when the protection is turned off in order to diagnose a malfunction, there is always a risk of failure of the power elements of the inverter. After repair, it is imperative to restore all standard converter protection circuits.
Diagnostics and repair of the PLVM01 motherboard is carried out by checking the functionality of the stabilizers or power converters of the module chips. In some cases, a software update is required. Repair of the board and replacement of VCT49X3 A29040BL MTL015GF microcircuits are made if the necessary equipment and the corresponding element base are available. Failures associated with the use of BGA soldering technologies can be localized by warming up.

Attention! Users and owners of RL-20X31 TVs who do not have the appropriate qualifications, knowledge and experience are strongly discouraged from attempting to repair themselves in order to avoid negative consequences that can lead to complete non-repairability of the device.

Additional MainBoard Repair
The appearance of the MainBoard PLVM01 is shown in the figure below:
PLVM01
The main features of the ROLSEN RL-20X31 device:
Installed matrix (LCD panel) LC201V02 (SD) (B1).
Matrix control uses Timing Controller (T-CON) LC201V02-SDA1.
To power the backlight lamps, an AT-6201LG12 (BIT) inverter is used, controlled by the FAN7311 / G52 / P2803NVG / ZEP17000 PWM controller.
The necessary supply voltages for all nodes of the ROLSEN RL-20X31 TV are provided by a switching power supply.
MainBoard - the main board (motherboard) is a PLVM01 module, using CPU chips: VCT49X3R F2 208010.000, MLT015GF; DC / DEC: 2576-3.3, 8050SD, AS1117 / 1.8; 2.5; 3.3 /, EPROM - A29040BL, EEPROM - A51CS, A21CS; Sound - TDA7266 P15V330WE and others.
Tuner TECH2949PS40B provides reception of TV programs and tuning to channels.
Additional technical information about the panel:
Brand: LG.Philips LCD
Model: LC201V02-SDB1
Type: a-Si TFT-LCD, Panel
Diagonal size: 20.1 inch
Resolution: 640x480, VGA
Display Mode: IPS, Normally Black, Transmissive
Active Area: 408x306 mm
Surface: Antiglare, Hard coating (3H)
Brightness: 450 cd / m²
Contrast Ratio: 800: 1
Display Colors: 16.7M (8-bit)
Response Time: 12/13 (Tr / Td)
Frequency: 60Hz
Lamp Type: 6 pcs CCFL Without Driver
Signal Interface: CMOS (1 ch, 8-bit), 41 pins
Voltage: 12.0V

ROLSEN RL-20X31 TV with LCD display LC201V02, diagonal size 20 "4: 3. The brightness of the screen of 500 cd / m² is provided by backlighting CCFL (EEFL) fluorescent lamps. Contrast, as the ratio of maximum brightness to minimum, is 500: 1 The input high-frequency or video signal can be processed in analog systems PAL, SECAM, NTSC.Graphic processing and digital signal shaping takes place in the 480i, 480p, 576i, 576p standards.
Speaker power 6 W (2x3W) is provided by two speakers. The NICAM STEREO audio processing system is used.
External interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, audio x2, S-Video, SCART, RGB, VGA. A headphone output is provided. To connect a computer or laptop to this TV model, use the VGA (D-Sub 15) connector on the TV case, this interface supports resolutions: 640x480.
Dimensions: with stand 510x480x240 mm, without stand 510x435x86 mm.
TV weight: 9.5 kg.
Attention! ROLSEN RL-20X31 LCD TV panel LC201V02 (SD) (B1) is the most expensive component.
Avoid hitting the glass and putting pressure on the screen surface to avoid irreversible damage to the LCD panel!

REPAIRING / SERVICING TV ROLSEN RL-22B01

Technical description and composition of the ROLSEN RL-22B01 TV, panel type and modules used. The composition of the modules.
ROLSEN
Model: RL-22B01
Chassis / Version: RSAG7.820.1653 VER.A
Panel: LTM220M1-L01 SD
Inverter (backlight): JSI-220402 P / N: 47131.220.0 / 0112805
PWM Inverter: TL494C
MOSFET Inverter: AOD484, AOD417
Power Supply (PSU): JSI-220402 P / N: 47131.220.0 / 0112805
PWM Power: LD7575PS (PWM flyback)
MainBoard: RSAG7.820.1653 VER.A
IC MainBoard: AZ1084S 3.3E1, Z1015AI, Z1021AI, K24C32, 4558CM-E1, HS9453, CD1517CP, TDA9886TS, ME4953
Tuner: TDQ-6FT / W126HR0H
Control: EN-21610
RL-22B01 Specifications
ROLSEN RL-22B01
General recommendations for TV LCD repair
Repair of a ROLSEN TV with RSAG7.820.1653 VER.A chassis should begin with a careful external examination of all its constituent elements and modules. Often, based on external signs and the nature of damage to elements, it becomes possible to draw some conclusions and determine a further algorithm for searching for a defect before taking the necessary measurements at control points. Experienced repairmen often guess about the causes of the defect and the possible consequences, for example, by ring cracks in the soldering of the element terminals, as well as by swollen capacitors or resistors burnt out to coal dust and other external indirect signs.
Malfunctions of the power supply module JSI-220402 P / N: 47131.220.0 / 0112805 can be expressed in different ways, for example, the ROLSEN RL-22B01 does not turn on at all and the control lamps on its front panel do not light up or blink, all signs of operability are absent. It should be noted that the processor power regulator (converter) may be faulty with the same external manifestations. When diagnosing and repairing the power supply, after replacing the swollen capacitors of the secondary rectifier filters (if any), you must first check the mains fuse. If it is broken, the power elements of the transistors BA8B4S, BA9A1S and the rectifier bridge diodes should be checked for avalanche (thermal) breakdown.
Power switches in switching power supplies (SMPS) fail for no reason very rarely and, if they break down, it is necessary to look for a malfunction in the stabilization circuits, checking electrolytic capacitors, semiconductor devices and resistors in the primary circuit. The reason may be a malfunction of the LD7575PS PWM regulator microcircuit, which can only be verified by replacing it with a new or known good one.
If, when turning on the TV, the image appears and immediately disappears, or is absent initially when turned on, but there is sound and other functions work, there is a high probability of a malfunction of the inverter (backlight power converter). In such cases, the lamps, the inverter and the common power supply module must be checked, in which the electrolytic capacitors of the rectifier filter supplying the inverter must be checked. It should be remembered that when the protection is turned off in order to diagnose a malfunction, there is always a risk of failure of the power elements of the inverter. After repair, it is imperative to restore all standard converter protection circuits.
The RSAG7.820.1653 VER.A motherboard must be checked if there is no reaction to the remote control and function buttons, the standby indicator blinks or is on continuously. In such cases, if the converters or power regulators of the microcircuits are working, it may be necessary to update the software. In cases of complex MB (SSB) repairs and with the necessary skills and equipment, it may sometimes be necessary to replace its AZ1084S 3.3E1, Z1015AI, Z1021AI, K24C32, 4558CM-E1, HS9453, CD1517CP, TDA9886TS, ME4953 and other possible faulty components. Malfunctions associated with the use of BGA soldering technologies are usually easily diagnosed by the warm-up method.
Owners and users of the ROLSEN RL-22B01 TV should remember that self-repair without special knowledge, skills and qualifications can be fraught with negative consequences that can lead to complete non-repairability of the device!


DOWNLOAD FIRMWARE FOR SPI FLASH  ----------->   ROLSEN RL-22B01, Main: RSAG7.820.1653 VER.A, Panel: LTM220M1-L01 SD


 The appearance of the MainBoard T.VST29.A2B_12313 is shown in the figure below:
T.VST29.A2B_12313
T.VST29.A2B_12313 can be used in TVs:
DNS E19A00 (Panel CX185LEDM (V185B1-PE)), DNS E22A11 (Panel M215HGE-P02), DNS E22A00 (Panel CX215LEDM M215HGE-P01), DNS E16A20 (Panel TL156WH4 (TL)(N2)), ERISSON 24LEB15 (Panel M240HW01 VD), ROLSEN RL-19L1003U (Panel M185BGE-L10 Rev.C1), ROLSEN RL-22L1003U (Panel V216BG1-LE1 REV C1), ROLSEN RL-23L1003UF (Panel M230HGE-L20 Rev.C1), ROLSEN RL-23L1005UF (Panel M230HGE-L20 RevC1).
The main features of the ROLSEN RL-22B01 device:
Installed matrix (LCD panel) LTM220M1-L01 SD.
The JSI-220402 inverter is used to power the backlight lamps, it is controlled by the TL494C PWM controller. The keys of the AOD484, AOD417 types are used as power elements of the inverter.
The formation of the necessary supply voltages for all nodes of the ROLSEN RL-22B01 TV is carried out by the JSI-220402 power module, or its analogs using LD7575PS microcircuits (PWM flyback).
MainBoard - the main board (motherboard) is an RSAG7.820.1653 module, using chips AZ1084S 3.3E1, Z1015AI, Z1021AI, K24C32, 4558CM-E1, HS9453, CD1517CP, TDA9886TS, ME4953 and others.
The TDQ-6FT / W126HR0H tuner provides reception of television programs and tuning to channels.
Information from an alternative source:
TV ROLSEN RL-22B01
Panel type (matrix): LTM220M1-L01 SD
Motherboard: RSAG7.820.1653 VER.A, AZ1084S 3.3E1, Z1015AI, Z1021AI, F40-100GCP, K24C32, 4558CM-E1, HS9453, ATMLH912 04B-1, CD1517CP, TDA9886TS, ME4953, SAW: HS9453 & HS6257, Tuner: TDQ-6FT/W126H\R0H, PSU & INVERTER: JSI-220402 P/N:47131.220.0/0112805, TL494C, BA8B4S x2, BA9A1S x2, LD7575PS
Remote control: EN-21610
Additional technical information about the panel:
Brand: SAMSUNG
Model: LTM220M1-L01
Type: a-Si TFT-LCD, Panel
Diagonal size: 22.0 inch
Resolution: 1680x1050, WSXGA +
Display Mode: TN, Normally White, Transmissive
Active Area: 473.76x296.1 mm
Surface: Antiglare (Haze 25%), Hard coating (3H)
Brightness: 300 cd / m²
Contrast Ratio: 1000: 1
Display Colors: 16.7M (6-bit + Hi-FRC), CIE1931 72%
Response Time: 1.3 / 3.7 (Tr / Td)
Frequency: 60Hz
Lamp Type: 4 pcs CCFL Without Driver
Signal Interface: LVDS (2 ch, 8-bit), 30 pins
Voltage: 5.0V
ROLSEN RL-22B01 TV with LCD display LTM220M1-L01, 22 "(55 cm) diagonal, 16:10 format. Screen brightness of 300 cd / m² is backlit by CCFL (EEFL) fluorescent lamps. Dynamic contrast ratio of 8000: 1 is provided by a special control of the backlight depending on the illumination of areas in the scene.It is possible to view images in high quality HD at a resolution of 1680x1050 pixels in the standard graphic resolution 720p (HD Ready) .Input high-frequency or video signal can be processed in analog systems PAL, SECAM, NTSC. and the digital signal is generated in the 480i, 480p, 576i, 576p, 720p, 1080i standards.
Speaker power 4 W (2x2 W) is provided by two speakers. The NICAM STEREO audio processing system is used.
External interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, audio x3, S-Video, component, VGA, HDMI. To connect a computer or laptop to this TV model, use the VGA (D-Sub 15) connector on the TV case, this interface supports resolutions: 640x480, 800x600, 1024x768, 1360x768.
TV weight: 6 kg.
Attention! The LTM220M1-L01 SD panel of the ROLSEN RL-22B01 LCD TV is the most expensive component.
Avoid hitting the glass and putting pressure on the screen surface to avoid irreversible damage to the LCD panel!

REPAIRING / SERVICING TV ROLSEN RL-26A09105U

Technical description and composition of the ROLSEN RL-26A09105U TV, panel type and modules used. The composition of the modules.
ROLSEN
Model: RL-26A09105U
Chassis / Version: RSAG7.820
Panel: HS26L02, CMO
Inverter (backlight): integrated into PSU
Trans Inverter: BCO-EEA17-AE
Power Supply (PSU): HLL-2600WA RSAG7.820.1646 / ROH VERG
MainBoard: RSAG7.820.1856
IC MainBoard: CPU: MT8222ARUS SDRAM: EM6AA160TSA-4G, SPI flash: MX25L3205
Tuner: TDQ-6FT
Control: EN-31603R
RL-26A09105U Specifications
ROLSEN RL-26A09105U
General recommendations for TV LCD repair
ROLSEN TV made on the RSAG7.820 chassis, like many other electronic devices, it is advisable to start repairing with an inspection of all external and internal elements. Sometimes, based on visible changes in the components of the device, it is possible to draw some conclusions and determine the direction of further troubleshooting even before the necessary measurements begin. Elements with visible damage, for example, capacitors swollen after electrolyte boiling, charred resistors in certain nodes of the circuit, as well as ring cracks in the solders, will help the master to guess the causes and possible consequences of the malfunction.
Malfunctions of the HLL-2600WA RSAG7.820.1646 / ROH VERG power supply module can be expressed in different ways, for example, ROLSEN RL-26A09105U does not turn on at all and the control lamps on its front panel do not light up or blink, all signs of operability are absent. It should be noted that the processor power regulator (converter) may be faulty with the same external manifestations. First of all, it is necessary to replace the swollen capacitors of the rectifier filters, if any. If the mains fuse in the power supply is broken, in most cases a breakdown of the power switch (s) is detected, which can be integrated with the PWM controller, or a separate field-effect transistor can be used. You should also check the diodes of the rectifier bridge and the electrolytic capacitor of the mains rectifier filter.
Power switches in switching power supplies (SMPS) fail for no reason very rarely and, if they break down, it is necessary to look for a malfunction in the stabilization circuits, checking electrolytic capacitors, semiconductor devices and resistors in the primary circuit. The reason may be a malfunction of the PWM regulator microcircuit, which can only be checked by replacing it with a new or known good one.
If, when turning on the TV, the image appears and immediately disappears, or is absent initially when turned on, but there is sound and other functions work, there is a high probability of a malfunction of the inverter (backlight power converter). In such cases, the lamps, the inverter and the common power supply module must be checked, in which the electrolytic capacitors of the rectifier filter supplying the inverter must be checked. When diagnosing a malfunction of an inverter with disabled protection, special care must be taken, because there is a risk of failure of the power elements of the inverter. After diagnostics, it is imperative to restore the protection circuits for the inverter to operate in normal mode.
In cases of attempts to repair the motherboard RSAG7.820.1856, it is necessary to check the performance of the stabilizers or power converters of its microcircuits and, if possible, update the software (software). BGA chips can in most cases be diagnosed by local heating. In some cases, it is necessary to check or replace (if necessary) elements of the MB (SSB) board - CPU: MT8222ARUS, SDRAM: EM6AA160TSA-4G. In cases where a BGA processor is used, its malfunction is usually detected by the local warm-up method.

Owners of the RL-26A09105U TV are recommended to contact only qualified specialists with experience for repair! Attempts to repair yourself without the appropriate knowledge and skills can lead to serious negative consequences!

DOWNLOAD FIRMWARE FOR SPI FLASH  ----------->   ROLSEN RL-26A09105U, Main: RSAG7.820

 The appearance of MainBoard RSAG7.820.1856 is shown in the figure below:
RSAG7.820.1856
RSAG7.820.1856 can be used in TVs:
ROLSEN RL-26A09105U (Panel HS26L02 CMO), ROLSEN RL-42B04F (Panel LC420WUN (SB)(D2)).
The main features of the ROLSEN RL-26A09105U device:
Installed matrix (LCD panel) HS26L02, CMO.
A converter combined with a power supply is used to power the backlight lamps. The transformer BCO-EEA17-AE is installed in the inverter converter.
The formation of the necessary supply voltages for all nodes of the ROLSEN RL-26A09105U TV is carried out by the HLL-2600WA power module, or its analogs.
MainBoard - the main board (motherboard) is an RSAG7.820.1856 module, using CPU chips: MT8222ARUS, SDRAM: EM6AA160TSA-4G, SPI flash: MX25L3205 and others.
The TDQ-6FT tuner provides reception of television programs and tuning to channels.
TV ROLSEN RL-26A09105U with LCD HS26L02, diagonal size 26 "(66 cm) 16: 9. Brightness of the screen 450 cd / m² provided by backlighting CCFL (EEFL) fluorescent lamps. Dynamic contrast ratio 3000: 1 is provided by special control of operation illumination depending on the illumination of areas in the scene.It is possible to view images in high quality HD at a resolution of 1366x768 pixels in the standard graphic resolution 720p (HD Ready) .Input high-frequency or video signal can be processed in analog systems PAL, SECAM, NTSC. Graphic processing and shaping digital signal occurs in the standards 480i, 480p, 576i, 576p, 720p, 1080i Supported media file formats: MP3, JPEG.
The power of the acoustic system of sound is 10 W (2x5 W), provided by two speakers. Uses the NICAM stereo signal processing system and the Sound Surround function.
External interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV x2, audio x4, S-Video, component, SCART x2, RGB, VGA, HDMI x3, USB x2. A headphone output is provided. To connect a computer or laptop to this TV model, use the VGA (D-Sub 15) connector on the TV case, this interface supports resolutions: 640x480, 800x600, 1024x768, 1360x768.
The power consumed by the TV in operating mode from the network is 80 watts.
Dimensions: with stand 650x477x228 mm, without stand 650x423x95 mm.
TV weight: 14.5 kg.
Attention! Panel HS26L02, CMO LCD TV ROLSEN RL-26A09105U is its most expensive component.
Avoid hitting the glass and putting pressure on the screen surface to avoid irreversible damage to the LCD panel!

REPAIRING / SERVICING TV ROLSEN RL-26D60

Technical description and composition of the ROLSEN RL-26D60 TV, panel type and modules used. The composition of the modules.
ROLSEN
Model: RL-26D60
Chassis / Version: PLHM01-01
Panel: LC320W01
Inverter (backlight): Master + Slave
Power Supply (PSU): PS-3200
PWM Power: VIPer22, L6562, L6598
MOSFET Power: STW20NM60, STP11NM60
MainBoard: PLHM01-01 Rev03
IC MainBoard: PQFP256, STV8217, TDA7297D
Tuner: TAUM-W101D
RL-26D60 Specifications
ROLSEN RL-26D60
General recommendations for TV LCD repair
Possible manifestations of malfunctions
- ROLSEN RL-26D60 TV does not turn on at all. No response to the remote control and front panel control buttons. Indicator lamps do not light up or flash.
In such cases, you should start looking for a malfunction in the PS-3200 power supply circuits. It is necessary to measure its secondary output voltages, and if they are absent, check the power switches (STW20NM60, STP11NM60) and rectifier diodes in the converters for a short circuit.
In case of any breakdowns of semiconductors in the secondary circuits, the converter can usually operate normally in an emergency short circuit mode. There are no output voltages. And with a short circuit in the power elements of the primary circuit, as a rule, the mains fuse breaks and, less often, the current sensor in the source of the key.
Breakdown of Mos-Fet switches used in switching power supplies is often caused by malfunctions of other elements, for example, in the power supply circuit of the PWM regulator, in frequency setting or damper circuits, as well as in negative feedback stabilization. PWM microcircuits (PWM) VIPer22, L6562, L6598 are usually checked by replacing them with new ones, or knowingly working.
- There is no image, there is sound, it reacts to the remote control, the channels are switched. In some cases, the image appears when turned on and disappears immediately.
These manifestations can be triggered by the power module, or by defects in the inverter, as well as by skewed currents in the lamps due to their uneven wear. After checking all the electrolytic capacitors of the filters that are involved in the power supply of the inverter, you should ring the power switches in its converter for breakdown and the secondary windings of the transformers for an open.
Sometimes, for diagnostic purposes, it is necessary to disable the inverter protection. In such cases, special care must be taken during work, and the protective circuits must be restored immediately after the repair is completed.
- The indicator on the front panel blinks, the TV does not turn on in operating mode, does not respond to the remote control.
Repair or diagnostics of the PLHM01-01 motherboard should begin with checking the stabilizers and power converters required to power the microcircuits and matrix. If necessary, you should update or replace the software (software). Complicated repair of MB (SSB) board is in some cases possible and practiced by repairmen. To do this, check and, if necessary, replace elements PQFP256, STV8217, TDA7297D. BGA chip faults are usually easy to detect by warm-up.
The malfunction of the TAUM-W101D tuner is established after checking the software and all supply voltages at its terminals. The data exchange of the tuner with the processor via the I2C bus can be monitored with an oscilloscope.

Owners of the RL-26D60 TV are advised to contact only qualified specialists with the necessary experience for repair! Attempts to repair yourself without the appropriate knowledge and skills can lead to irreversible negative consequences!

The main features of the ROLSEN RL-26D60 device:
Installed matrix (LCD panel) LC320W01.
A Master inverter is used to power the backlight lamps.
The formation of the necessary supply voltages for all nodes of the ROLSEN RL-26D60 TV is carried out by the PS-3200 power module, or its analogs using VIPer22, L6562, L6598 microcircuits and power switches of the STW20NM60, STP11NM60 type.
MainBoard - the main board (motherboard) is a PLHM01-01 module, using PQFP256, STV8217, TDA7297D and others.
The TAUM-W101D tuner provides reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: LG.Philips LCD
Model: LC320W01-SL20
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1366x768, WXGA
Display Mode: S-IPS, Normally Black, Transmissive
Active Area: 697.68x392.26 mm
Surface: Antiglare, Hard coating (3H)
Brightness: 500 cd / m²
Contrast Ratio: 800: 1
Display Colors: 16.7M (8-bit)
Response Time: 8/10 (Tr / Td); 8 (G to G)
Frequency: 60Hz
Lamp Type: 18 pcs EEFL Embedded (Inverter)
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V



ROLSEN RL-26D60 LCD TV, 26 "(66 cm) in 16: 9 format. The brightness of the screen is 500 cd / m2, backlit by CCFL (EEFL) fluorescent lamps. Contrast, as the ratio of maximum brightness to minimum, is 700: 1. It is possible to view images in high quality HD at a resolution of 1366x768 pixels in the standard of graphic decomposition 720p (HD Ready). Input high-frequency or video signal can be processed in analog systems PAL, SECAM, NTSC. Graphic processing and formation of a digital signal occurs in standards 480i, 480p, 576i, 576p, 720p, 1080i.
Speaker power 16 W (2x8 W) is provided by two speakers. Uses NICAM stereo processing system and Sound Surround function.
External interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, audio x3, S-Video, component, SCART x2, RGB, VGA, DVI HDCP. A headphone output is provided. To connect a computer or laptop to this TV model, use the VGA (D-Sub 15) connector on the TV case, this interface supports resolutions: 640x480, 800x600, 1024x768, 1360x768.
Overall dimensions: 695x600x270 mm.
Attention! The ROLSEN RL-26D60 LCD TV panel is its most expensive component.

Avoid hitting the glass and putting pressure on the screen surface to avoid irreversible damage to the LCD panel!

REPAIRING / SERVICING TV ROLSEN RL-26X20

Technical description and composition of the ROLSEN RL-26X20 TV, panel type and modules used. The composition of the modules.
ROLSEN
Model: RL-26X20
Panel: LC260WX2
T-CON: 12v
Inverter (backlight): KLS-EE26CI-M / S (P)
Trans Inverter: IT-094 0663
Power Supply (PSU): DMSM-S0007D
PWM Power: VIPER22A (Standby), L6562D (PFC), L6598D (PWM Resonant 16pin)
MOSFET Power: P11NM60, W20NM60
MainBoard: DML-4126
IC MainBoard: CPU: SDA5550, EEPROM 24C16, flash A29040BL-70
Tuner: TECH294PG40B (D)
Control: LC03-AR028A
RL-26X20 Specifications
ROLSEN RL-26X20
General recommendations for TV LCD repair
ROLSEN with chassis, like other TVs, it is advisable to start repairing with a careful examination of external and internal elements and modules. Often, based on external signs and the nature of damage to elements, it becomes possible to draw some conclusions and determine a further algorithm for searching for a defect before taking the necessary measurements at control points. Electrolytic capacitors of filters with a swollen body, as well as ring cracks formed in the soldering of the leads of heating elements or a layer of coal on burnt resistors sometimes prompt the repairman about the causes of the malfunction and the possible consequences.
If ROLSEN RL-26X20 does not turn on, none of the control lamps on the front panel will light up or blink, therefore, there is a very high probability of malfunction of the DMSM-S0007D power supply module. In some cases, only the processor power regulator may be faulty. In general, first of all, it is necessary to check the electrolytic capacitors of the filters of the secondary rectifiers and the fuse at the mains input. If it is cut off, then the diodes of the rectifier bridge and the key transistor of the converter, which can be located either on a separate heatsink or integrated with a PWM controller into a common microcircuit, should be checked for a breakdown of PN junctions. The options are P11NM60, W20NM60.
It should be remembered that in the practice of repair, usually power switches in switching power supplies (SMPS) do not fail due to their poor quality and, in such cases, it is necessary to look for the reason that led to a malfunction and provoked a breakdown of the key. Most often, the culprits of the accident are dry electrolytic capacitors or broken resistors in the primary circuit, or the chip of the PWM controller VIPER22A (8) // L6562D (8) // L6598D (16) may be faulty. It is also necessary to check all the semiconductor elements of the stabilization circuit in the primary and secondary circuits.
If the ROLSEN RL-26X20 TV does not have a picture, but there is sound, the fault should be sought in the backlight power converter (inverter). It is also necessary to check the serviceability of the electrolytic capacitors of the filter of the secondary rectifiers of the PSU (power supply) for an overestimated ESR. All necessary precautions must be taken when disabling the inverter protection during diagnostics and do not leave it disabled after repair is completed.
In some cases, it is necessary to check or replace (if necessary) elements of the MB (SSB) board - EEPROM 24C16, flash A29040BL-70. In cases where a BGA processor is used, its malfunction is usually detected by the local warm-up method.

Attention to users! Self-repair of the ROLSEN RL-26X20 TV without proper qualifications and experience can lead to its complete non-repairability!

Schematic Diagram 7+ pages on RL-26X20 model

DOWNLOAD FIRMWARE FOR SPI FLASH  ----------->   ROLSEN RL-26X20

 SCHEMATIC DIAGRAM  / SERVICE MANUAL   ------------------>    ROLSEN RL-26X20

 The appearance of the MainBoard DML-4126 is shown in the figure below:
DML-4126
Additionally by PSU
The RL-26X20 TV is equipped with a DMSM-S0007D power module using a PFC (Power Factor Correction) circuit that acts as an active filter to eliminate the higher harmonic components of the current consumption. The boost converter based on the L6562D PWM regulator does not allow connecting the electrolytic capacitor of the input rectifier filter to the network directly through open diodes, when the charge current is determined by its reactance (about 15-30 ohms at a frequency of 50 Hz). As a result of the conversion, the charging current of the capacitor will be determined in such a way that the envelope of the high-frequency pulses of the input current follows the phase and shape of the sinusoid of the input voltage. Checking the health of the PFC unit is carried out by measuring the constant voltage across the capacitor of the network rectifier. In working mode it should be about 380V, in standby about 300V.
External view of the power supply
The main features of the ROLSEN RL-26X20 device:
Installed matrix (LCD panel) LC260WX2.
Matrix control uses 12v Timing Controller (T-CON).
The KLS-EE26CI-M inverter is used to power the backlight lamps. The transformer IT-094 0663 is installed in the inverter converter.
The formation of the necessary supply voltages for all nodes of the ROLSEN RL-26X20 TV is carried out by the DMSM-S0007D power module, or its analogs using the VIPER22A (Standby), L6562D (PFC), L6598D (PWM Resonant 16pin) chips and power switches of the P11NM60, W20NM60 type.
MainBoard - the main board (motherboard) is a DML-4126 module, using CPU chips: SDA5550, EEPROM 24C16, flash A29040BL-70 and others.
Tuner TECH294PG40B (D) provides reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: LG.Philips LCD
Model: LC260WX2-SLE4
Type: a-Si TFT-LCD, Panel
Diagonal size: 26.0 inch
Resolution: 1366x768, WXGA
Display Mode: S-IPS, Normally Black, Transmissive
Active Area: 575.769x323.712 mm
Surface: Antiglare (Haze 13%), Hard coating (3H)
Brightness: 450 cd / m²
Contrast Ratio: 900: 1
Display Colors: 16.7M (8-bit)
Response Time: 8 (G to G)
Frequency: 60Hz
Lamp Type: 12 pcs EEFL Embedded (Inverter)
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V
TV ROLSEN RL-26X20 with LCD LC260WX2, diagonal size 26 "(66 cm) 16: 9. Brightness of the screen 450 cd / m² provided by CCFL (EEFL) fluorescent lamps. Contrast, as the ratio of maximum brightness to minimum, is 500: 1. It is possible to view images in high quality HD at a resolution of 1280x720 pixels in the standard of graphic decomposition 720p (HD Ready). Input high-frequency or video signal can be processed in analog systems PAL, SECAM, NTSC. Graphic processing and formation of a digital signal occurs in standards 480i, 480p, 576i, 576p, 720p Supported media file formats: MP3, WMA, MPEG4, VideoCD, SVCD, Picture CD, JPEG.
Speaker power 16 W (2x8 W) is provided by two speakers. The NICAM STEREO audio processing system is used.
External interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, audio x3, S-Video, component, SCART x2, RGB, VGA, DVI HDCP. A headphone output is provided. To connect a computer or laptop to this TV model, use the VGA (D-Sub 15) connector on the TV case, this interface supports resolutions: 640x480, 800x600, 1024x768.
The power consumed by the TV in operating mode from the network is 140 watts.
Dimensions: with stand 694x597x270 mm, without stand 694x529x122 mm.
TV weight: 16 kg.
Attention! ROLSEN RL-26X20 LCD TV panel LC260WX2 is the most expensive component.
Avoid hitting the glass and putting pressure on the screen surface to avoid irreversible damage to the LCD panel!

REPAIRING / SERVICING TV ROLSEN RL-32A03105U

Technical description and composition of the ROLSEN RL-32A03105U TV, panel type and modules used. The composition of the modules.
ROLSEN
Model: RL-32A03105U
Chassis / Version: RSAG7.820
Panel: LTA320AP02
T-CON: 320AP03C2LV0.1
Power Supply (PSU): HLP45B01
MainBoard: RSAG7.820.1637
IC MainBoard: MT8222ARSU, TDA9886TS, MX25L3206EM, FT24C16.
Tuner: TDQ-6FT / W126H
Appearance
ROLSEN RL-32A03105U
General recommendations for TV LCD repair
Repair of a ROLSEN TV with RSAG7.820 chassis should begin with a careful external examination of all its constituent elements and modules. Many visible changes in the state of elements make it possible to determine the further direction of troubleshooting and localization of the defect. If charred resistors, swollen electrolytic or sintered capacitors, ring cracks in the soldering of the terminals of transformers or heating elements are found, it is advisable to establish the causes and consequences of the malfunction, as well as to check the connected elements and assemblies.
In the absence of any signs of operability, when the ROLSEN RL-32A03105U does not turn on and does not signal anything with the control lamps on the panel, there is a possibility of a malfunction of the HLP45B01 TV power module. The power supply regulator of the control processor on the motherboard may also be faulty with the same manifestations. In general, first of all, it is necessary to check the electrolytic capacitors of the filters of the secondary rectifiers and the fuse at the mains input. If it is cut off, then the diodes of the rectifier bridge and the key transistor of the converter, which can be located either on a separate heatsink or integrated with a PWM controller into a common microcircuit, should be checked for a breakdown of PN junctions. Options are possible.
The reasons for the breakdown of the power switch in switching power supplies (SMPS) can be different, for example, a malfunction of semiconductor elements or electrolytic capacitors in the stabilization circuits of the primary circuit, as well as a failure in the operation of a PWM regulator microcircuit or breaks in resistors in its strapping.
If the ROLSEN RL-32A03105U has no image, but there is sound, there is a possibility of a malfunction of the backlight lamps or their power converter. You should also make sure that the electrolytic capacitors of the secondary rectifiers of the common power supply are in good working order. When disabling protection for diagnostic purposes, it must be remembered that in this case there is a risk of failure of the power elements of the inverter. Upon completion of the diagnosis, all standard protection circuits must be restored.
In cases of attempts to repair the motherboard RSAG7.820.1637, it is necessary to check the operability of the stabilizers or power converters of its microcircuits and, if possible, update the software (software). BGA chips can in most cases be diagnosed by local heating. In some cases, to repair the MB (SSB) board, it may be necessary to replace the chips - MT8222ARSU, TDA9886TS, MX25L3206EM, FT24C16. to new or known serviceable ones. In cases where BGA technologies are used, defects are usually localized by heating.

Attention to the owners! Attempts to repair the ROLSEN RL-32A03105U TV on your own are not recommended by the manufacturer and can lead to serious negative consequences!

Additional MainBoard Repair
The appearance of the MainBoard RSAG7.820.1637 is shown in the figure below:
RSAG7.820.1637
RSAG7.820.1637 can be used in TVs:
BBK LT3218SU (Panel LTA320AP02 S07), BBK LT3218SU (Panel LTA320AP02), ROLSEN RL-32A03105U (Panel LTA320AP02), ROLSEN RL-32A09105F (Panel LC320WUN (SA)(B4)), ROLSEN RL-32A09105U (Panel LTA320AP05).
The main features of the ROLSEN RL-32A03105U device:
Installed matrix (LCD-panel) LTA320AP02.
Matrix control uses Timing Controller (T-CON) 320AP03C2LV0.1.
The formation of the necessary supply voltages for all nodes of the ROLSEN RL-32A03105U TV is carried out by the HLP45B01 power module, or its analogs.
MainBoard - the main board (motherboard) is an RSAG7.820.1637 module, using the MT8222ARSU, TDA9886TS, MX25L3206EM, FT24C16 microcircuits. and others.
The TDQ-6FT / W126H tuner provides reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: SAMSUNG
Model: LTA320AP02
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1366x768, WXGA
Display Mode: PVA, Normally Black, Transmissive
Active Area: 697.68x392.26 mm
Surface: Antiglare (Haze 7%), Hard coating (3H)
Brightness: 450 cd / m²
Contrast Ratio: 5000: 1
Display Colors: 16.7M (8-bit), CIE1931 72%
Response Time: 8 (G to G)
Frequency: 60Hz
Lamp Type: 4 pcs CCFL Embedded (Inverter)
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V

REPAIRING / SERVICING TV ROLSEN RL-32A09105F

Technical description and composition of the ROLSEN RL-32A09105F TV, panel type and modules used. The composition of the modules.
ROLSEN
Model: RL-32A09105F
Chassis / Version: RSAG7.820
Panel: LC320WUN (SA) (B4)
Inverter (backlight): PNEL-T803 B Rev-0.2 6632L-0601A
PWM Inverter: BD9897FS
MOSFET Inverter: FDD8447L (3)
Trans Inverter: L2-EF32-B-10304B-KI
Power Supply (PSU): HLP-2642WA - RSAG7.820.1673 / ROH VER.F
PWM Power: LNK564PN (7), NCP33262 (PFC), NCP1396AD (15), 1579 (8)
MOSFET Power: K3569, 4820N (8)
MainBoard: RSAG7.820.1637 / ROH VerE
IC MainBoard: Cpu: MT8222, Flash: MX25L3206E, Eeprom: 24C16, R2A15108 FP
Tuner: TDQ-6FT / W126H
Control: EN-31603R
RL-32A09105F Specifications
ROLSEN RL-32A09105F
General recommendations for TV LCD repair
Repair and diagnostics of any electronic device, in particular ROLSEN with RSAG7.820 chassis, it is advisable to begin with a careful external examination of the internal and external elements. Visible damage to elements can sometimes indicate the direction of searching for a defect even before the necessary measurements are taken. Elements with visible damage, for example, capacitors swollen after electrolyte boiling, charred resistors in certain nodes of the circuit, as well as ring cracks in the solders, will help the master to guess the causes and possible consequences of the malfunction.
In the absence of any signs of operability, when the ROLSEN RL-32A09105F does not turn on and does not signal anything with the control lamps on the panel, there is a possibility of a malfunction of the RSAG7.820.1673 / ROH VER.F TV power module. With the same manifestations, the power regulator of the control processor on the motherboard may be faulty. When diagnosing and repairing the power supply, after replacing the swollen capacitors of the secondary rectifier filters (if any), you must first check the mains fuse. If it is broken, the power elements of the K3569 transistors and the rectifier bridge diodes should be checked for avalanche (thermal) breakdown.
In most cases, key breakdowns in switching power supplies (SMPS) do not occur without reason and you should look for other faulty circuit elements that could provoke a defect. This can be dry electrolytic capacitors in the primary circuit, and faulty damper elements, as well as broken resistors or punctured semiconductor elements in the stabilization circuits. Possible marriage of the PWM chip LNK564PN (7), 33262 PAST (8), NCP1396AG (15) 1579 (8) 4820N (8) from the manufacturer.
Sometimes the ROLSEN RL-32A09105F TV does not have an image, but there is sound, or the image appears and immediately disappears. In this case, there is a high probability of a malfunction of the backlight converter, or the lamps themselves, which can be checked by replacing. In such cases, it is necessary to make sure that all electrolytic capacitors of the filter are in good working order for the power supply of the inverter itself, including the power supply unit (power supply unit). When disabling protection for diagnostic purposes, it must be remembered that in this case there is a risk of failure of the power elements of the inverter. Upon completion of the diagnosis, all standard protection circuits must be restored.
On the RSAG7.820.1637 / ROH VerE motherboard, in case of a malfunction, you should first check the operability of all stabilizers or power converters of microcircuits and, if necessary, update the software (software). In some cases, the elements of the MB (SSB) board - R2A15108 FP, require checking or replacing (if necessary). In cases where a BGA processor is used, its malfunction is usually detected by the local warm-up method.

We remind users again! Attempts to repair the ROLSEN RL-32A09105F TV without proper qualifications and experience can lead to its complete non-repairability!

DOWNLOAD FIRMWARE FOR SPI FLASH  ----------->   ROLSEN RL-32A09105F, Main: RSAG7.820.1637/ROH VerE , Panel: LC320WUN (SA)(B4)

 The appearance of the MainBoard RSAG7.820.1637 is shown in the figure below:
RSAG7.820.1637
RSAG7.820.1637 can be used in TVs:
BBK LT3218SU (Panel LTA320AP02 S07), BBK LT3218SU (Panel LTA320AP02), ROLSEN RL-32A03105U (Panel LTA320AP02), ROLSEN RL-32A09105F (Panel LC320WUN (SA)(B4)), ROLSEN RL-32A09105U (Panel LTA320AP05).
Additionally by PSU
The RL-32A09105F model uses an HLP-2642WA power supply with a PFC (Power Factor Correction) node - an active filter for higher harmonics of the consumed current. In fact, it is a step-up converter based on the 33262 PWM regulator, which excludes the charging current of the electrolytic capacitor of the mains rectifier filter directly from the mains through open diodes, when its charging current is determined by its reactance.
As a result of the converter operation, the envelope of high-frequency pulses of the input current of the converter will repeat the shape and phase of the input voltage. The serviceability of the PFC unit can be indirectly judged by the presence of an increased constant voltage (about + 380V) on the capacitor of the network rectifier in operating mode.
External view of the power supply
The main features of the ROLSEN RL-32A09105F device:
Installed matrix (LCD panel) LC320WUN (SA) (B4).
The inverter PNEL-T803 is used to power the backlight lamps, it is controlled by the PWM controller BD9897FS. The transformer L2-EF32-B-10304B-KI is installed in the inverter converter. FDD8447L switches are used as power elements of the inverter (3).
The formation of the necessary supply voltages for all nodes of the ROLSEN RL-32A09105F TV is carried out by the HLP-2642WA power module, or its analogs using LNK564PN (7), NCP33262 (PFC), NCP1396AD (15), 1579 (8) power switches and power switches of the K3569 type, 4820N (8).
MainBoard - the main board (motherboard) is an RSAG7.820.1637 module, using chips Cpu: MT8222, Flash: MX25L3206E, Eeprom: 24C16, R2A15108 FP and others.
The TDQ-6FT / W126H tuner provides reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: LG Display
Model: LC320WUN-SAB4
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1920x1080, FHD
Display Mode: S-IPS, Normally Black, Transmissive
Active Area: 698.4x392.85 mm
Surface: Antiglare (Haze 10%), Hard coating (3H)
Brightness: 500 cd / m²
Contrast Ratio: 1300: 1
Display Colors: 1.06B (8-bit + Dithering), CIE1931 72%
Response Time: 6 (G to G)
Frequency: 60Hz
Lamp Type: EEFL Embedded (Inverter)
Signal Interface: LVDS (2 ch, 10-bit), 51 pins
Voltage: 12.0V
ROLSEN RL-32A09105F TV with LCD LC320WUN, 32 "(81 cm) 16: 9 diagonal. Screen brightness of 500 cd / m² is provided by CCFL (EEFL) fluorescent lamps. Contrast, as the ratio of maximum brightness to minimum brightness, is 4000: 1. Dynamic contrast ratio of 35000: 1 is provided by a special control of the backlight depending on the illumination of areas in the scene.The design and technical capabilities of the TV provide viewing of broadcasts and films in high quality HD at a resolution of 1920x1080 pixels in graphic resolution according to the standard 1080p (Full HD The input high-frequency or video signal can be processed in analog systems PAL, SECAM, NTSC. Graphic processing and digital signal shaping occurs in the standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p. Supported multimedia file formats: MP3, WMA, MPEG4, Xvid, DivX, JPEG.
Speaker power 12 W (2x6 W) is provided by two speakers. Uses NICAM stereo processing system and Sound Surround function.
External interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV x2, audio x4, S-Video, component, SCART x2, RGB, VGA, HDMI x3, USB x2. A headphone output is provided. To connect a computer or laptop to this TV model, use the VGA (D-Sub 15) connector on the TV case, this interface supports resolutions: 640x480, 800x600, 1024x768.
The power consumed by the TV in operating mode from the network is 160 watts.
Dimensions: with stand 800x599x242 mm, without stand 800x545x107 mm.
TV weight: 14 kg.
Attention! ROLSEN RL-32A09105F LCD TV panel LC320WUN (SA) (B4) is its most expensive component.
Avoid hitting the glass and putting pressure on the screen surface to avoid irreversible damage to the LCD panel!