SAMSUNG MAX-460V CD CHANGER DISASSEMBLE PROCEDURE OF THE MECHANISM / SCHEMATIC DIAGRAM

Samsung MAX-460V 3 CD CHANGER VIDEO CD MINI COMPONENT

Cabinet-Top

1. Remove 11 screws holding the cabinet-top.
2. Lift the back of the cabinet-top and slide it to the rear to remove. (See arrow)

CD-MECHA, DOOR-CD

1. If power is connected :
- Turn power on
- Open the tray using the open/close key
- Remove the Door in the direction of arrow.

2. If power is not connected :
- Turn the gear clockwise using a screw driver as shown in Figure
- Pull the Tray in the direction of arrow and then remove the Door in the direction of arrow.

Cabinet-Rear and Main PCB

1. Remove 14 screws (5) and then lift the cabinet-rear (6) and slide it to rear to remove (see arrow).
2. Remove the Main-PCB & to rear.

Cabinet-Front and Cabinet-Bottom

Remove 5 screws 
2. Remove the cabinet-rear by pushing the "A" and "B" as shown.

CD Mechanism Main

1. Turn the Bracket-chuck (1) counter clockwise to remove.
2. Remove the Table-Chuck union (2)
3. Remove the Magnet-Chuck (3)
4. Remove the screw (4) and then lift the Gear-Tray(2) (5)
5. Remove the Belt-disc (6)
6. Remove the screw (7) and then lift the Gear-Pulley (8)
7. Lift the Gear-Tray(1) (9)
8. Remove 2 screws and then remove the Motor-DC (11)
9. Remove the Pulley-Motor (12)
10. Remove 1 screw (35) and then remove the PCB-SUB switch (13)
11. Remove the Switch-Micro (14) with using the soldering iron.
12. Remove the Connector-Wafer (15) with using the soldering iron.
13. Remove 2 screws (16) and then remove the Gear-Cam (17)
14. Remove the Belt-Disc - 18
15. Remove 1 screw 35 and then remove the PCB-SUB switch 19
16. Remove the Switch-Micro 20 and the Connector-Header 21.
17. Remove the Pulley-Motor 24
18. Remove 1 screw 25 and then lift the Gear-Pulley 26
19. Remove 1 screw 27 and then lift the Gear-UD(2) 28
20. Lift the Gear-UD (1) 29
21. Remove 1 screw and then remove the Clamp-Wire 53

CD-PCB

1. Remove 2 screws 1
2. Remove the PCB 2 with using the soldering iron.
3. Remove the Hook 3.
4. Remove four Shaft-CD4 and then remove four Rubber-CD 5
5. Remove the CD-Deck 6 and Lever-Lift 7 is removed automatically.
6. Remove the Shaft 8.

CD Mechanism Tray

1. Remove 1 screw 1 and then remove the Roulette 2
2. Remove 6 Cushions 23 .
3. Remove 2 Washers 3
4. Remove the Gear-Roulette (2) $ and then remove the Gear-Roulette (1) 5.
5. Remove 3 screws 6 and then remove three Cushion-Bracket 7.
6. Remove 3 Cushion-Motors 8.
7. Remove 2 screws 9 and then remove the Motor-DC 11.
8. Remove the Bracket-Motor 10
9. Remove the Shaft-Motors (1) 11
10. Remove the Gear-Worm 12 from the Motor-DC.
11. Remove the PCB-SUB Motor(R) 13 with using the soldering iron.
12. Remove the A/S, C/wire 14 with a soldering iron.
13. Remove 1 screw 15 and then remove the connector-header 16, Sensor-Roulette 17 and the A/S, C/wire (FL) 18 with using a soldering iron.
14. Remove the PCB-SUB sensor(R) 19

CD Deck

1. Remove the Shaft 1
2. Lift the P/U 2
Note : Take extreme care not to touch the surface of lens.
3. Lift the Centre-ring 3
4. Remove the Spring-T/Table 4
5. Remove the Turn-Table (M) 5 .
6. Remove 2 screw 8 and then remove the Spindle-Motor 7
7. Remove the Cover-Gear 8 by pushing the hook.
8. Remove the Gear (c) 9 by pushing the hook.
9. Lift the Gear (b) 10
10. Remove the Gear (a) 11
11. Remove 2 screws 12 and then remove the Feed-Motor 13
12. Remove the Chassis-Deck (M) 14

Schematic [full]

 

REPAIRING / SERVICING TV GOLDSTAR LT-42A320F

Technical description and composition of the GOLDSTAR LT-42A320F TV, panel type and modules used. The composition of the modules.
GoldStar LED
Model: LT-42A320F
Chassis / Version: MS82S V3L10 V3L11
Panel: LVF420AUBK
LED driver (backlight): 40RT4611-DRB2XG
PWM LED driver: MAP3204T
MOSFET LED driver: AOD4454
Power Supply (PSU): 40E421C5-PWB1XG
MainBoard: 40-MS82S0-MAD2XG (H)
IC MainBoard: MST6E182VS-LF, 25Q32A-100HIP, 24C64, K4T51163QT-BCF7, IT6633E-P, TPA3110D2
Tuner: F35WT-3-E
LT-42A320F Specifications
GOLDSTAR LT-42A320F
General recommendations for TV LCD LED repair
Possible manifestations of malfunctions
- TV GoldStar LT-42A320F does not turn on and does not show any signs of turning on, does not respond to control buttons and to the remote control.
Most often, with similar manifestations, the main power module 40E421C5-PWB1XG turns out to be faulty. In the absence of the necessary supply voltages in the secondary circuits of the converters, it is necessary to check the power switches and rectifier diodes for possible partial or complete breakdown.
In case of breakdowns of semiconductors in the secondary circuits, the converter can usually work in an emergency in the short-circuit mode, and in the event of a short circuit in the power elements of the primary circuit, the mains fuse often breaks.
Mos-Fet keys used in switching power supplies usually fail due to a malfunction of other elements, which can disable it in key mode, or provoke an excess of the maximum current or voltage values. These can be circuits supplying a PWM controller, damper or frequency setting circuits, or OOS (negative feedback) elements in the stabilization circuit. PWM controllers (PWM), in the absence of external damage and a short circuit between the terminals, are checked by replacing them with a known good one.
- 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.
A malfunction is usually in these cases most likely in the backlight units of the display matrix. The reason may be both in the power supply of the LEDs, in their serviceability (breakdown or breakage), as well as in the violation of the contact connections of the LED strips.
It is impossible to check the LED bars for a break without disassembling the panel with a multimeter or tester. For these purposes, it is necessary to open all series-connected PN junctions and a voltage of the order of tens of volts is required, and ideally a current source. Having disassembled the panel, it is necessary to check each LED separately. Chinese multimeters tend to light one 3-volt LED in the forward direction. In the case of using dual 6-volt LEDs, the PN junction of its protective zener diode can serve as an indicator of serviceability. In faulty LEDs, the zener diode will either be cut off, or pierced in the K / Z.
- The TV does not turn on, does not respond to the remote control. The indicator blinks or signals the standby mode.

Repair or diagnostics of the 40-MS82S0-MAD2XG 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 the elements MST6E182VS-LF, 25Q32A-100HIP, 24C64, K4T51163QT-BCF7, IT6633E-P, TPA3110D2. BGA chip faults are usually easy to detect by warm-up.

If the TV operates normally from external devices, but does not tune to TV channels, the F35WT-3-E tuner may be faulty. In such cases, first of all, you should make sure that there are supply voltages at its corresponding terminals. It is also necessary to make sure that the tuner and processor can exchange data via the I2C bus. Sometimes the reason for the inoperability of the tuner may be a software failure.

Attention! Users and owners of LT-42A320F 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.

DOWNLOAD FIRMWARE FOR SPI FLASH  ----------->   GoldStar LT-42A320F MS82S V3L10 V3L11, Main: 40-MS82S0-MAD2XG (H), Panel: LVF420AUBK

 The appearance of the MainBoard 40-MS82S0-MAD2XG is shown in the figure below:
40-MS82S0-MAD2XG
40-MS82S0-MAD2XG can be used in TVs:
ERISSON 23LET70 (Panel LTA230AP01), GOLDSTAR 32A340R (Panel LVW320SSTM E1), GoldStar LT-42A320F (Panel LVF420AUBK), MYSTERY MTV-3225LW (Panel LVM320CSTME13V4), MYSTERY MTV-4019LW (Panel LVF390CMTM E13 V5), MYSTERY MTV-3219LW (Panel LVW320CSTME18 V2), TCL 40D3200 (Panel LTA400HM13 ), TCL 39D3320 39D3320F (Panel LVF390CMTM E13 V2), TCL 39E5000F3D (Panel V390HK1-LS5), THOMSON T39ED33HU (Panel LVF390CMTME15V2), THOMSON T32ED33U (Panel LSC320AN01-C06), THOMSON T32E32U (Panel LVW320SSTT E1).
Main features of the GOLDSTAR LT-42A320F device:
Installed matrix (LED panel) LVF420AUBK.
To power the backlight LEDs, the 40RT4611-DRB2XG LED driver is used, controlled by the MAP3204T PWM controller. AOD4454 type keys are used as power elements of the LED driver.
The formation of the necessary supply voltages for all nodes of the GOLDSTAR LT-42A320F TV is carried out by the 40E421C5-PWB1XG power module, or its analogs.
MainBoard - the main board (motherboard) is a 40-MS82S0-MAD2XG module, using the MST6E182VS-LF, 25Q32A-100HIP, 24C64, K4T51163QT-BCF7, IT6633E-P, TPA3110D2 and others.
The F35WT-3-E tuner provides reception of television programs and tuning to channels.
TV GOLDSTAR LT-42A320F with LCD LVF420AUBK, 42 "(107 cm) diagonal 16: 9. The required screen brightness of 400 cd / m² is provided by LED backlighting. Dynamic contrast ratio of 80000: 1 is achieved by special control of the LEDs. The LED panels of this TV are equipped with edge LED backlighting.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) .Input high-frequency or video signal can be processed in analog systems PAL, SECAM, NTSC Graphic processing and digital signal formation is performed in 480i, 480p, 576i, 576p, 720p, 1080i, 1080p standards Supported multimedia file formats: MP3, MPEG4, JPEG.
The power of the acoustic sound system is 16 W (2x4 + 8 W) provided by 3 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, component, VGA, HDMI x2, 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 operating in mains mode is 140 W.
Dimensions: without stand 1013x639x47 mm.
TV weight: without stand: 15 kg.
Attention! Panel LVF420AUBK LED TV GOLDSTAR LT-42A320F is an expensive and unreliable element.
Do not allow any impact on the glass and pressure on the screen surface to avoid damage to the LED panel!
It is also unsafe for liquid to spill onto the screen. Sometimes one drop is enough if it drips down the glass onto the cables to make the TV unrepairable.

REPAIRING / SERVICING TV GOLDSTAR LT-50T450F

Technical description and composition of the GOLDSTAR LT-50T450F TV, panel type and modules used. The composition of the modules.
GOLDSTAR LED
Model: LT-50T450F
Chassis / Version: V1R04
Panel: LC490DUJ-SHA2
LED backlight: 5800-W49001-1P00 VER02.00
LED driver (backlight): integrated into PSU
PWM LED driver: OZ9903GN
Power Supply (PSU): 168P-L5L017-W3 5800-L5L017-W300
PWM Power: TEA1733
MainBoard: 5800-A6M33G-0P20 VER00.05
IC MainBoard: CPU: MSD3463GLAT-W2, SPI Flash: 25Q64BSIG, Audio: TPA3110D2
Tuner: CP + SAT
LT-50T450F Specifications
GOLDSTAR LT-50T450F
General recommendations for TV LCD LED repair
Possible malfunctions
- TV GOLDSTAR LT-50T450F does not turn on, does not respond to the remote control and control panel buttons, does not light up or blink indicators.
In such cases, you should start looking for a malfunction in the 5800-L5L017-W300 power supply circuits. It is necessary to make sure that its output voltages are present and, if they are completely absent, check the power switches and rectifier diodes for a possible short circuit.
In case of any breakdowns in the secondary circuits, the converter can operate in an emergency mode of a short circuit, and in the event of a short circuit in the power elements of the primary circuit, the mains fuse or the current sensor in the source of the key often breaks off.
Mos-Fet keys used in switching power supplies usually fail due to a malfunction of other elements, which can disable it in key mode, or provoke an excess of the maximum current or voltage values. These can be circuits supplying the PWM controller, damper or frequency setting circuits, or OOS (negative feedback) elements in the stabilization circuit. PWM controllers (PWM) TEA1733, in the absence of external damage and a short circuit between the terminals, are checked by replacing them with a known good one.
- There is no picture, but there is sound and reaction to commands from the remote control. Or the image appears immediately after switching on and disappears.
The backlight of the matrix (LED panel) is usually faulty in these cases. Often the cause of a malfunction is the lack of current in the LED circuit, for example, their open or short circuit, or a violation of the contact connections of the connectors.
To test the LED strips, in order to open all the transitions of the LEDs, several tens of volts or more are needed, it is best to use a current source for such purposes. The breakage of several PN junctions connected in series cannot be detected with a multimeter or tester. In such cases, it is necessary to open the panel and check each LED. If your multimeter cannot open the LED junctions in forward bias, you can sometimes detect the presence of a protective zener diode PN junction by connecting the probes in the opposite direction. If the zener diode is cut off or broken in K / Z, then the LED is faulty and needs to be replaced.
- The TV does not turn on, does not respond to the remote control. The indicator blinks or signals the standby mode.
Repair or diagnostics of the 5800-A6M33G-0P20 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). Complex repair of MB (SSB) is possible only in a service center with the necessary equipment. Checking or replacing CPU elements: MSD3463GLAT-W2, SPI Flash: 25Q64BSIG, Audio: TPA3110D2 requires the necessary training and professional skills to repair modules at the component level. Problems associated with the use of BGA soldering technologies can sometimes be diagnosed by the warm-up method.
If there is no tuning for terrestrial or cable TV channels, you should make sure that the software is correct, as well as that the supply voltages on the CP + SAT tuner pins are in line. It is also necessary to check with an oscilloscope the presence of pulses of data exchange between the tuner and the processor via the I2C bus.

We remind users again! Attempts to repair the GOLDSTAR LT-50T450F TV without proper qualifications and necessary experience can lead to its complete non-repairability!

Reduce the backlight current in TVs with 168P-L5L017-W3 (5800-L5L017-W300) power supplies as follows. The current sensors in each of the three channels consist of two 3.3 Ohm resistors connected in parallel at the sources of the Q403-Q405 switches. You can reduce the backlight current by about 30% by replacing one of the 3.3 Ohm resistors by 10 Ohm in each channel.

 The appearance of MainBoard 5800-A6M33G-0P20 is shown in the figure below:
5800-A6M33G-0P20
Main features of the GOLDSTAR LT-50T450F device:
Installed matrix (LED panel) LC490DUJ-SHA2.
To power the backlight LEDs, a converter combined with a power supply is used, controlled by an OZ9903GN PWM controller.

The formation of the necessary supply voltages for all nodes of the GOLDSTAR LT-50T450F TV is carried out by the 168P-L5L017-W3 power module, or its analogs using TEA1733 microcircuits.
MainBoard - the main board (motherboard) is a 5800-A6M33G-0P20 module, using CPU chips: MSD3463GLAT-W2, SPI Flash: 25Q64BSIG, Audio: TPA3110D2 and others.
The CP + SAT tuner provides TV reception and channel tuning.
TV GOLDSTAR LT-50T450F with LCD LC490DUJ-SHA2, diagonal size 50 "(127 cm) 16: 9. The required brightness of the screen 350 cd / m2 is provided by LED backlighting. Contrast, as the ratio of maximum brightness to minimum, is 900: 1. The technology of production of the screen of this TV model is realized with LED backlighting. The design and technical capabilities of the TV provide viewing of broadcasts and movies in high quality HD at a resolution of 1920x1080 pixels in graphic resolution according to the standard 1080p (Full HD). Supported media file formats: MP3, WMA, MPEG4, MKV, JPEG.
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, VGA, HDMI x3, MHL, USB x2. A headphone output is provided.
The digital tuner is capable of receiving television channels in the DVB-T MPEG4, DVB-C, DVB-T2, DVB-S2 standards.
Dimensions: with stand 1103x686x264 mm, without stand 1103x645x86 mm.
Attention! The LC490DUJ-SHA2 panel of the GOLDSTAR LT-50T450F LED TV is an expensive and unreliable element.
Do not allow any impact on the glass and pressure on the screen surface to avoid damage to the LED panel!
It is also unsafe for liquid to spill onto the screen. Sometimes one drop is enough if it drips down the glass onto the cables to make the TV unrepairable.

REPAIRING / SERVICING TV TELEFUNKEN TF-LED65S37T2SU

Technical description and composition of the TELEFUNKEN TF-LED65S37T2SU TV, panel type and modules used. The composition of the modules.
TELEFUNKEN LED
Model: TF-LED65S37T2SU
Chassis / Version: MS65860-ZC01-01
Panel: T650QVR07.2
LED backlight: LED65D9-03 (A) 30365009205 & LED65D10-03 (A) 30365009206
T-CON: 65T53-C01 CTRL BD
LED driver (backlight): integrated into PSU
PWM LED driver: OCP8128
MOSFET LED driver: 60R360Q
Power Supply (PSU): TV5502-ZC02-01
PWM Power: TEA1716, SY8113B
MOSFET Power: 13NM60 (PFC), BYC8X-600P
MainBoard: MS65860-ZC01-01
IC MainBoard: e-MMC: THGBMHG6C1LBAI
Tuner: NoName
Control: IR: TV3024-ZC10-01 (E) 303CMG30245, WIi-Fi: FN-LINK F88ETUM35-C2
TF-LED65S37T2SU Specifications
TELEFUNKEN TF-LED65S37T2SU
General recommendations for TV LCD LED repair
Possible malfunctions
- TELEFUNKEN TF-LED65S37T2SU TV does not turn on. There are no signs of operability. The indicators on the front panel do not light or blink, the TV does not respond to the control buttons.
In some of these cases, the main switching power supply, the TV5502-ZC02-01 module, is faulty. It is then necessary to measure its output voltages and, if they are absent, the power switches (13NM60 (PFC), BYC8X-600P) and the rectifier diodes of the converters should be checked for the probability of a short circuit.
In case of diode breakdowns in the secondary circuits, the converter can operate in an emergency mode of short circuit without output voltages, and in the event of a short circuit in the power elements of the primary circuit, the mains fuse and / or the current sensor in the source of the key usually breaks off.
Mos-Fet keys used in switching power supplies usually fail due to a malfunction of other elements, which can disable it in key mode, or provoke an excess of the maximum current or voltage values. These can be circuits supplying the PWM controller, damper or frequency setting circuits, or OOS (negative feedback) elements in the stabilization circuit. PWM controllers (PWM) TEA1716, SY8113B, in the absence of external damage and a short circuit between the terminals, are checked by replacing them with known good ones.
- There is no picture, 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.
As a rule, in such cases there is no display backlight. The reason for this may be an open circuit in the LED circuit, or a problem in stabilizing their power supply.
It is impossible to identify an open circuit in the LED line without disassembling the panel with a simple multimeter. The LEDs are connected in series and a voltage of several tens of volts is required to open their junctions. Ideally, a current source is suitable for such purposes. You can open the panel and check each LED separately. Usually, Chinese multimeters lightly light one 3-volt LED if you connect the probes to it in the forward direction (red probe to the anode, black to the cathode). For dual 6-volt LEDs, the PN junction of its emergency zener diode can serve as an indicator of LED health. In the event of a malfunction of the LED, its zener diode will either be cut off, or broken through in the K / Z.
- The TV does not go into operation, does not respond to the remote control. The indicator on the front panel is on or blinking.
Repair or diagnostics of the MS65860-ZC01-01 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). When repairing an MB board, you need to check its e-MMC components: THGBMHG6C1LBAI. Defective elements should be replaced. If chips with BGA soldering technology are used, the problem in its implementation is detected by local heating of the chip.
If there is no tuning for terrestrial or cable TV channels, you should make sure that the software is correct, as well as in accordance with the nominal supply voltages at the NoName tuner outputs. It is also necessary to check with an oscilloscope the presence of pulses of data exchange between the tuner and the processor via the I2C bus.

Attention to TV owners! Attempts to repair TELEFUNKEN TF-LED65S37T2SU by yourself are not recommended by the manufacturer and can lead to serious negative consequences!

The appearance of the MainBoard MS65860-ZC01-01 is shown in the figure below:
MS65860-ZC01-01
External view of the power supply
Main features of the TELEFUNKEN TF-LED65S37T2SU device:
Installed matrix (LED panel) T650QVR07.2.
Matrix control uses Timing Controller (T-CON) 65T53-C01.
To power the backlight LEDs, a converter combined with a power supply is used, controlled by an OCP8128 PWM controller. The 60R360Q type keys are used as power elements of the LED driver.
The formation of the necessary supply voltages for all nodes of the TELEFUNKEN TF-LED65S37T2SU TV is carried out by the TV5502-ZC02-01 power module, or its analogs using TEA1716, SY8113B microcircuits and power switches of the 13NM60 (PFC), BYC8X-600P type.
MainBoard - the main board (motherboard) is an MS65860-ZC01-01 module, using e-MMC chips: THGBMHG6C1LBAI and others.
Tuner NoName provides reception of television programs and tuning to channels.
TV TELEFUNKEN TF-LED65S37T2SU with LCD, diagonal size 64.5 "(164 cm) 16: 9. Brightness of the screen 350 cd / m² is provided by LED backlight. Contrast, as the ratio of maximum brightness to minimum, is 3000: 1. This TV model is equipped with LED backlight technology and can watch movies in the highest UHD quality at 3840x2160 resolution in 4K UHD standard.
TF-LED65S37T2SU TV has built-in SMART software and pre-installed Android operating system. Internet connection can be made via Wi-Fi wireless connection. Supported media file formats: MP3, WMA, MPEG4, Xvid, DivX, MKV, JPEG.
Speaker sound system power 20 W (2-10 W) is provided by two speakers. The NICAM STEREO audio processing system is used.
The external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, component, HDMI x3, USB x3, Ethernet (RJ-45), Wi-Fi. A headphone output is provided.
The digital tuner is capable of receiving television channels in DVB-T MPEG4, DVB-C, DVB-T2 standards.
Dimensions: with stand 1462x903x258 mm, without stand 1462x845x71 mm.
TV weight: 18.7 kg.
Attention! Panel LED TV TELEFUNKEN TF-LED65S37T2SU is an expensive and unreliable element.
Do not allow any impact on the glass and pressure on the screen surface to avoid damage to the LED panel!

It is also unsafe for liquid to spill onto the screen. Sometimes one drop is enough if it drips down the glass onto the cables to make the TV unrepairable.

REPAIRING / SERVICING TV TELEFUNKEN TF-LED32S37T2

Technical description and composition of the TELEFUNKEN TF-LED32S37T2 TV, panel type and modules used. The composition of the modules.
TELEFUNKEN LED
Model: TF-LED32S37T2
Chassis / Version: MS34631-ZC01-01
Panel: ST3151A05-8 // LSC320AN10-H
LED backlight: LED315D10-07 (B) 30331510219
T-CON: ST3151A05-8-XC-3
LED driver (backlight): integrated into MainBoard
PWM LED driver: OB3350CP
MOSFET LED driver: MDD1903
Power Supply (PSU): integrated into MainBoard
PWM Power: PWM SOT23-6
MOSFET Power: TO-252
MainBoard: MS34631-ZC01-01
IC MainBoard: SPI FLASH: 25Q64, AUDIO: TPA3110D2
Tuner: NoName DVB-T2
Control: IR: TV3024-ZC10-01 (E) 303CMG30245
TF-LED32S37T2 Specifications
TELEFUNKEN TF-LED32S37T2
General recommendations for TV LCD LED repair
Possible manifestations of malfunctions
- TELEFUNKEN TF-LED32S37T2 does not turn on, does not respond to buttons and the remote control, indicators on the front panel do not light up or flash.
A malfunction in such cases, first of all, should be sought in the power elements of a switching power supply (SMPS) - a mains voltage converter (AC / DC), which in this TV model is combined with the MainBoard MS34631-ZC01-01 main board. It is necessary to measure the output voltages in its secondary circuits, and if they are completely absent, the serviceability of the power switches (TO-252) and rectifier diodes should be checked for a possible breakdown (short circuit).
In case of any breakdowns in the secondary circuits, the converter can operate in an emergency mode of a short circuit, and with a short circuit in the power elements of the primary circuit, the mains fuse or the current sensor at the source of the key is often cut off.
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) PWM SOT23-6 are usually checked by replacing them with new ones, or known to be working properly.
- There is no image, the screen is black, there is sound, sometimes you can see barely noticeable outlines of the image in the ambient light of the screen.
The malfunction in most of such cases is found in the nodes and elements of the LED panel backlight. The reason for this may be an open circuit in the LED circuit, or a problem in stabilizing their power supply.
When diagnosing, it must be borne in mind that it is impossible to check for an open circuit in the LED strip circuit without disassembling the panels using a tester or multimeter. To open all PN junctions connected in series, a voltage of the order of several tens of volts is required, and ideally a current source. Opening the panel, you can check each LED separately. Typically, Chinese multimeters will lightly light one 3-volt LED when the probes are connected to it in the forward direction. For dual 6-volt LEDs, the PN junction of its emergency zener diode can serve as an indicator of the LED health. In the event of a malfunction of the LED, its zener diode will either be cut off or pierced in the K / Z.
- 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 MS34631-ZC01-01 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 the elements SPI FLASH: 25Q64, AUDIO: TPA3110D2. BGA chip faults are usually easy to detect by warm-up.

Before replacing the NoName DVB-T2 tuner, if there is no tuning to the channels, you must first check the software and the supply voltage at its outputs. It is also necessary to make sure that the tuner and processor can exchange data via the I2C bus

Remember! Attempts to self-repair the TELEFUNKEN TF-LED32S37T2 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!

DOWNLOAD FIRMWARE FOR SPI FLASH  ----------->   TELEFUNKEN TF-LED32S37T2, Main: MS34631-ZC01-01, Panel: LSC320AN10-H

 The appearance of the MainBoard MS34631-ZC01-01 is shown in the figure below:
MS34631-ZC01-01
Main features of the TELEFUNKEN TF-LED32S37T2 device:
Installed matrix (LED-panel) ST3151A05-8 or LSC320AN10-H.
Matrix control uses the ST3151A05-8-XC-3 Timing Controller (T-CON).
To power the backlight LEDs, a converter combined with the MS34631-ZC01-01 main board is used, controlled by the OB3350CP PWM controller. The keys of the MDD1903 type are used as power elements of the LED driver.
The power module is combined with the MainBoard and is made according to the AC / DC flyback voltage converter using SOT23-6 PWM microcircuits and TO-252 type power switches.
MainBoard - the main board (motherboard) is an MS34631-ZC01-01 module, using SPI FLASH: 25Q64, AUDIO: TPA3110D2 and others.
Tuner NoName DVB-T2 provides reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: CSOT
Model: ST3151A05-8
Type: a-Si TFT-LCD, CELL
Diagonal size: 31.5 inch
Resolution: 1366x768, WXGA
Display Mode: HVA, Normally Black, Transmissive
Active Area: 697.685x392.256 mm
Surface: Antiglare (Haze 2%), Hard coating (3H)
Glass Depth: 0.50 + 0.50 mm
Transmissivity: 7.16% (with Polarizer)
Contrast Ratio: 3000: 1
Display Colors: 16.7M (8-bit), CIE1931 62%
Response Time: 6.5 (G to G)
Frequency: 60Hz
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V

LCD TV TELEFUNKEN TF-LED32S37T2, diagonal size 31.5 "(80 cm) 16: 9. The brightness of the screen is 240 cd / m² provided by LED backlighting. Contrast, as the ratio of maximum brightness to minimum, is 5000: 1. The technology of production of the screen of this TV model is realized with LED backlighting.It is possible to view images in high quality HD at a resolution of 1366x768 pixels in the standard graphic resolution 720p (HD Ready) Supported media file formats: MP3, WMA, MPEG4, Xvid, MKV, 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 x2, component, SCART, VGA, HDMI x2, USB. A headphone output is provided.
The digital tuner is capable of receiving television channels in DVB-T MPEG4, DVB-C, DVB-T2 standards.
Overall dimensions: 731x473x200 mm.
TV weight: 5 kg.
Attention! The panel of the LED TV TELEFUNKEN TF-LED32S37T2 is an expensive and unreliable element.
Do not allow any impact on the glass and pressure on the screen surface to avoid damage to the LED panel!
It is also unsafe for liquid to spill onto the screen. Sometimes one drop is enough if it drips down the glass onto the cables to make the TV unrepairable.

REPAIRING / SERVICING TV LG 26LD350

Technical description and composition of the LG 26LD350 TV, panel type and modules used. The composition of the modules.
Lg
Model: 26LD350
Chassis / Version: LD01B
Panel: T260XW04 V.3
Lamp backlight: 8 Lamp CCFL
Inverter (backlight): VIT71886.00
PWM Inverter: OZ964SN
MOSFET Inverter: P2904BD, P4004ED
Power Supply (PSU): LGP26-10P EAX61464001
PWM Power: HS01G (PFC), L6599D
MOSFET Power: K5A60D, K13A60D
MainBoard: EAX61354204 (0) EBR65979056
IC MainBoard: CPU: LGE107DC-RP, DDR: H5TQ1G63BFR-H9C, Nand: HY27UF082G2B, SPI FLASH MX25L8005M2I
Tuner: TDTJ-S001D
Control: IR: EBR64965302 BM-LDS103
Specifications 26LD350
LG 26LD350
General recommendations for TV LCD repair
Possible manifestations of malfunctions
- LG 26LD350 does not turn on, indicators on the front panel do not light or blink. The TV does not respond to control buttons and the remote control.
In such cases, a malfunction should be looked for in the circuits of the LGP26-10P power supply. Its output voltages should be measured and, if they are absent, check the power switches (K5A60D, K13A60D) and rectifier diodes for the probability of a short circuit in the converters.
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.
Mos-Fet keys used in switching power supplies usually fail due to a malfunction of other elements, which can disable it in key mode, or provoke an excess of the maximum current or voltage values. These can be circuits supplying a PWM controller, damper or frequency setting circuits, or OOS (negative feedback) elements in the stabilization circuit. PWM controllers (PWM) HS01G (PFC), L6599D, in the absence of external damage and a short circuit between the terminals, are checked by replacing them with a known good one.
- No picture, sound, all other TV functions are working. When turned on, the image may sometimes appear for a second.
These manifestations can be provoked by the power module, or by defects in the inverter, as well as by the skew of 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.
If, when diagnosing a malfunction, it is required to turn off the inverter protection, there is a risk of failure of the power elements of the inverter, and special care is required during work, and after they are completed, it is imperative to restore the protection circuits for further safe operation of the TV by the owner in normal mode.
- The TV does not go into operation, does not respond to the remote control. The indicator on the front panel is on or blinking.
Repair or diagnostics of the EAX61354204 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 cases of complex MB (SSB) repairs and with the necessary skills and equipment, it may sometimes be necessary to replace its chips CPU: LGE107DC-RP, DDR: H5TQ1G63BFR-H9C, Nand: HY27UF082G2B, SPI FLASH MX25L8005M2I and other possible faulty components. Malfunctions associated with the use of BGA soldering technologies are usually easily diagnosed by the warm-up method.
The malfunction of the TDTJ-S001D tuner is established after checking the software and all supply voltages at its outputs. The data exchange of the tuner with the processor via the I2C bus can be monitored with an oscilloscope.

Attention to TV owners! Attempts to repair the LG 26LD350 yourself are not recommended by the manufacturer and can lead to serious negative consequences!

DOWNLOAD SCHEMATIC DIAGRAM  / SERVICE MANUAL   ------------------>   Service Manual with Schematic Diagram 46 pages 2010 on models 26LD350, 26LD350-TA.

 Compatible with:   19LD350-ZA, 19LD355-ZA, 19LE3300-ZA, 19LE3308-ZA, 22LD350-ZA, 22LD355-ZA, 22LD358-ZA, 22LE3300-ZA, 22LE3308-ZA, 22LE3320-ZA, 26LD350-ZA, 26LD355-ZA, 26LE3300-ZA, 26LE3308-ZA, 32LD350-ZA, 32LD351-ZB, 32LD355-ZA, 32LD358-ZA, 32LD420-ZA, 32LD420C-ZA, 32LD428-ZA, 32LD450-ZA, 32LD450N-ZA, 32LD455-ZA, 32LD458-ZA, 32LD465-ZA, 32LD468-ZA, 32LD550-ZC, 32LD551-ZA, 32LD565-ZC, 32LE3300-ZA, 32LE3308-ZA, 32LE4500-ZA, 32LE4508-ZA, 32LE5300-ZA, 32LE5308-ZA, 32LE5310-ZB, 32LE5318-ZB, 37LD420-ZA, 37LD428-ZA, 37LD450-ZA, 37LD455-ZA, 37LD458-ZA, 37LD468-ZA, 37LE4500-ZA, 37LE4508-ZA, 37LE5300-ZA, 37LE5308-ZA, 37LE5310-ZB, 37LE5318-ZB, 42LD420-ZA, 42LD428-ZA, 42LD450-ZA, 42LD455-ZA, 42LD458-ZA, 42LD465-ZA, 42LD468-ZA, 42LD551-ZA, 42LD565-ZC, 42LE4500-ZA, 42LE4508-ZA, 42LE5300-ZA, 42LE5308-ZA, 42LE5310-ZB, 42LE5318-ZB, 46LD551-ZA, 47LD420-ZA, 47LD450-ZA, 47LD455-ZA, 47LD458-ZA, 47LD465-ZA, 47LD468-ZA, 47LE5300-ZA, 47LE5308-ZA, 47LE5310-ZB, 47LE5318-ZB, 52LD551-ZA, 55LE5300-ZA, 55LE5308-ZA, 55LE5310-ZB, 60LD551-ZA, 60LD558-ZC.

Additional MainBoard Repair
The appearance of the MainBoard EAX61354204 is shown in the figure below:



EAX61354204 can be used in TVs:
LG 32LD345 (Panel LC320WXE-SCA1), LG 37LD450 (Panel LC370WUG (SC)(A1)), LG 42LD455-ZA (Panel LC420WUG), LG 32LD550 (Panel LK315D3LA57), LG 42LD450 ZA (Panel LC420WUG (SC)(A1)), LG LG32LD350 32LD350 (Panel T315HW04 V.8), LG 42LD420 ZA (Panel LC420WUG (SC)(A1)), LG 37LD420 ZA (Panel T370HW03 V.B), LG 32LD420 ZA (Panel LC320WUG (SC)(A1)), LG 32LD555 ZC (Panel LC320WUG (SC)(A1)), LG 26LD355-ZA (Panel T260XW04 V.3), LG 37LD425 ZA (Panel T370HW03 V.B), LG 32LD425 (Panel LC320WUG (SC)(A1)), LG 32LD340 32LD340-ZA.BRUWLJU (Panel LC320WXE (SC)(A1)).
External view of the power supply
Main features of the LG 26LD350 device:
Installed matrix (LCD-panel) T260XW04 V.3.
The VIT71886.00 inverter is used to power the backlight lamps, it is controlled by the OZ964SN PWM controller. Keys of type P2904BD, P4004ED are used as power elements of the inverter.
The formation of the necessary supply voltages for all nodes of the LG 26LD350 TV is carried out by the LGP26-10P power module, or its analogues using the HS01G (PFC), L6599D microcircuits and power switches of the K5A60D, K13A60D type.
MainBoard - the main board (motherboard) is an EAX61354204 module, using CPU chips: LGE107DC-RP, DDR: H5TQ1G63BFR-H9C, Nand: HY27UF082G2B, SPI FLASH MX25L8005M2I and others.
Tuner TDTJ-S001D provides reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: AUO
Model: T260XW04 V3
Type: a-Si TFT-LCD, Panel
Diagonal size: 26.0 inch
Resolution: 1366x768, WXGA
Display Mode: AMVA, Normally Black, Transmissive
Active Area: 575.769x323.712 mm
Surface: Antiglare (Haze 13%), Hard coating (3H)
Brightness: 450 cd / m²
Contrast Ratio: 3000: 1
Display Colors: 16.7M (8-bit), CIE1931 72%
Response Time: 6.5 (G to G)
Frequency: 60Hz
Lamp Type: 4 pcs CCFL Embedded (Inverter)
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V
TV LG 26LD350 with LCD T260XW04 V.3, diagonal size 26 "(66 cm) 16: 9. Dynamic contrast ratio of 50,000: 1 is achieved by controlling the operation of the backlight depending on the brightness of the scene.
The T260XW04 sensor and MainBoard software provide high quality HD viewing at 1366x768 pixels in 720p (HD Ready). The input analog video signal is decoded in PAL, SECAM, NTSC systems. The graphic processing of a digital signal is carried out in the 480i, 480p, 576i, 576p, 720p, 1080i, 1080p standards. Supported media file formats: MP3, JPEG.
Speaker power of 10 W (2x5 W) is provided by two speakers. The NICAM stereo audio processing system and the Sound Surround function are used.
Communication with other devices via an external interface is supported by standard input and output connectors: antenna input (RF), AV, audio x3, component, SCART, RGB, VGA, HDMI x2, USB, RS-232. A headphone jack is provided. A VGA (D-Sub 15) connector is provided to connect a computer or laptop to this TV model. This interface supports standard resolutions: 640x480, 800x600, 1024x768, 1360x768.
The digital tuner can receive TV channels in DVB-T MPEG4 standards.
The power consumed when operating from the network is 90 W.
Dimensions: With stand 663x484x207 mm, Without stand 663x423x80 mm.
Attention! The T260XW04 panel of the LG 26LD350 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 RUBIN RB-22SL1UF

 Technical description and composition of the RUBIN RB-22SL1UF TV, panel type and modules used. The composition of the modules.
RUBIN LED
Model: RB-22SL1UF
Chassis / Version: MST6M181-T7S 471-01A2-61702G rev A2
Panel: LTM215HT04 led // LM230WF5
LED driver (backlight): // GT-02 471R1015 KB6160
PWM LED driver: MP3389EF // OB3362VP
MOSFET LED driver: ME4457-G (8), MEI5N60-G
Trans LED driver: 330
Power Supply (PSU): K-40L1 K_L-NM1 465-01A2-21402G
PWM Power: OB5269CP (8)
MOSFET Power: SW7N65
MainBoard: MST6M181-T7S 471-015A-61702G F50CT-2DD-e (x)
IC MainBoard: YD1517P, IT6633E-P, 3502M,
Specifications RB-22SL1UF
RUBIN RB-22SL1UF
General recommendations for TV LCD LED repair
It is advisable to start repairing the RUBIN RB-22SL1UF WH TV with a careful external examination of both internal and external elements. In some cases, visible external damage to elements can prompt the directions of troubleshooting and localization of the defect even before the necessary measurements are taken at the control points of electronic circuit assemblies. In most cases, the repairman can guess about the causes of the defect and the possible consequences by the characteristic signs of typical defects in TVs, for example, the formed ring cracks in the soldering of the element terminals, swollen capacitors of the rectifier filter, charred resistors and other circuit elements.
In the complete absence of any signs of operability, when RUBIN RB-22SL1UF does not turn on and does not signal anything with control lamps on the panel, there is a possibility of malfunction of the power supply module K_L-NM1 465-01A2-21402G K-40L1 of the TV. The power supply regulator of the control processor on the motherboard may also be faulty with the same 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 mains voltage rectifier bridge and the power switch (keys) of the SW7N65 converter.
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 B5111A OB5269CP (8) can also cause the breakdown of the power switch of the converter.
If, when you turn on RUBIN RB-22SL1UF, there is no image, or it appears for a second and disappears, but there is sound, most likely there is a malfunction in the LED circuit of the LTM215HT04 led // LM230WF5 panel backlight, or in their power converter. It is necessary to check the electrolytic capacitors of the filter of the secondary rectifiers in the common power supply.
Often, in the absence of backlight, disassembly of the panel is required. It is necessary to check the serviceability of the LED transitions, as well as the reliability of the contact connections in the lines and connectors.
When trying to detect a break in the LED lines, it should be borne in mind that it is difficult to do this without disassembling the panel. For example, a current source is needed to open PN junctions connected in series.
If the motherboard MST6M181-T7S 471-015A-61702G F50CT-2DD-e (x) TCL1108201486 is faulty, first of all it is necessary to check all linear stabilizers or power converters of its chips, and also, if necessary, update the software. Sometimes it is possible to check the health of the MB only by replacing it.

Complicated repair of MB (SSB) board is in some cases possible and practiced by repairmen. To do this, check and, if necessary, replace elements YD1517P, IT6633E-P, 3502M,. BGA chip faults are usually easy to detect by warm-up.

Owners and users of the RUBIN RB-22SL1UF TV need to remember that self-repair without special knowledge, skills and qualifications can be fraught with negative consequences that can lead to the complete non-repairability of the device!

 DOWNLOAD FIRMWARE FOR SPI FLASH  ----------->   RUBIN RB-22SL1UF, Main Board: MST6M182VG-T7S, Cpu: MST6E182VG-LF-Z1, Spi Flash: 25Q32 Panel: LM215WF4 (TL) (E7)

To reduce the backlight current in LED drivers with a PWM controller MP3389EF (MP3389), or its analog OB3362VP (28 pin), the total resistance of the resistors from pin 9 (ISET) to the case should be proportionally increased. The maximum current in each of the 12 channels (in milliamperes) for the resistance Rset (in kilo-ohms) is determined from the ratio 1000 * 1.22V / Rset. When the channels are connected in parallel, the currents are summed up.

Additional MainBoard Repair
The appearance of the MainBoard MST6M181-T7S is shown in the figure below:
The MST6M181-T7S motherboard uses an MST6M181VS-LF-Z1 processor combined with a scaler, external random access memory (RAM) DDR Winbond W9425G6JH and SPI flash ROM 25Q32.

It is advisable to start MainBoard repair by checking the supply voltages of the linear stabilizers and voltage converters required to provide power to the processor nodes: 1.2V, 2.5V, 3.3V. The power supply of the LCD panel is 5V or 12V, depending on the type of panel used, it can be measured directly at the LVDS connector. In cases where the TV does not come out of Stand-by mode, does not respond to the remote control and control buttons in the presence of all supply voltages, you should update the SPI Flash software.

MST6M181-T7S can be used in TVs:
ERISSON 22LEK14 (Panel M215H3-LA1 REV.C1), ROLSEN RL-17L1002U (Panel LTN173KT01-A01), ROLSEN RL-17L1002U (Panel LTN173KT02 ), ROLSEN RL-19L1002U (Panel 19 "), ROLSEN RL-22L1002UF (Panel LTM215HT04 B2 (5v)), ROLSEN RL-23L1002UF (Panel M230WA01-ED G2 EE01 LED), RUBIN RB-19SL1U (Panel 19 "), RUBIN RB-22SL1UF (Panel LTM215HT04 led), RUBIN RB-23SL1UF (Panel 23 ").
External view of the power supply
Key features of the RUBIN RB-22SL1UF device:
Installed matrix (LED panel) LTM215HT04 led or LM230WF5.

A LED driver is used to power the backlight LEDs, it is controlled by the PWM controller MP3389EF // OB3362VP. The transformer 330 is installed in the converter of the LED driver. The keys of the type ME4457-G (8), MEI5N60-G are used as power elements of the LED driver.
The formation of the necessary supply voltages for all nodes of the RUBIN RB-22SL1UF TV is carried out by the K-40L1 power module, or its analogs using OB5269CP microcircuits (8) and power switches of the SW7N65 type.
MainBoard - the main board (motherboard) is an MST6M181-T7S module, using YD1517P, IT6633E-P, 3502M chips, and others.
Additional technical information about the panel:
Brand: SAMSUNG
Model: LTM215HT04-V
Type: a-Si TFT-LCD, Panel
Diagonal size: 21.5 inch
Resolution: 1920x1080, FHD
Display Mode: TN, Normally White, Transmissive
Active Area: 476.64x268.11 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: 5 (Tr + Td)
Frequency: 60Hz
Lamp Type: 10S3P WLED Without Driver
Signal Interface: LVDS (2 ch, 8-bit), 30 pins
Voltage: 5.0V
RUBIN RB-22SL1UF TV with LCD display LTM215HT04, 22 "(56 cm) 16: 9. The LED panels of this TV are equipped with edge LED backlighting.The design and technical capabilities of the TV provide viewing of broadcasts and movies in high quality HD at a resolution of 1920x1080 pixels in graphic resolution according to the standard 1080p (Full HD) .Input high-frequency or video signal can be processed in analog systems PAL, SECAM, NTSC Graphic processing and digital signal formation is performed in 480i, 480p, 576i, 576p, 720p, 1080i, 1080p standards Supported multimedia file formats: MP3, WMA, MPEG4, MKV, JPEG.
The power of the sound system is 6 W (2x3 W), 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 x2, S-Video, component, VGA, HDMI x2, 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 35 W.
Dimensions: without stand 535x394x36 mm.
TV weight: without stand: 5 kg.
Attention! The LTM215HT04 panel of the RUBIN RB-22SL1UF LED LED TV is an expensive and unreliable element.
Do not allow any impact on the glass and pressure on the screen surface to avoid damage to the LED panel!
It is also unsafe for liquid to spill onto the screen. Sometimes one drop is enough if it drips down the glass onto the cables to make the TV unrepairable.

REPAIRING / SERVICING TV RUBIN RB-24S2UFD

Technical description and composition of the RUBIN RB-24S2UFD TV, panel type and modules used. The composition of the modules.
RUBIN LED
Model: RB-24S2UFD
Panel: V236H1-P01 // TB236F101-A
T-CON: HM236WU1-100 X0.0
LED driver (backlight): MAK2592 V1.1 LE236 MKN_LE2360A-V02
PWM LED driver: 144B2 EUP2589 (30)
MOSFET LED driver: STU606S (3)
Power Supply (PSU): LK-SP104804B
MainBoard: T.MS6M181.7A 11453, DVD 2013 V2.0
IC MainBoard: YD1517, MST6M181VF-LF-Z1,
Tuner: SDT-3SP512-36
Control: IR: MST206 REV: B
Specifications RB-24S2UFD
RUBIN RB-24S2UFD
General recommendations for TV LCD LED repair
It is advisable to start repairing electronic devices, including the RUBIN RB-24S2UFD TV, with an external examination of its 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 help determine a further algorithm for troubleshooting and localizing a defect. If ring cracks are found in the soldering of the terminals of the elements 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 TV does not turn on, none of the indicators on its front panel are on or blinking. Also, if the TV does not respond to the remote control and buttons, does not emit any sounds or any signs of operability when turned on, there is a certain probability that the LK-SP104804B power supply module is faulty and needs repair. Sometimes a problem with similar manifestations can occur only in the absence of processor power, which is typical for certain RUBIN 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.
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 circuit components - electrolytic capacitors, resistors and semiconductor elements of the primary circuit. The PWM microcircuit is checked by replacing it with a known good one.
If the RUBIN RB-24S2UFD has no image, but there is sound and the TV is controlled from the remote control, there is likely a malfunction in the X ?? panel backlight circuits. The LEDs or the power converter - LED driver may be faulty. Often in such cases, when you turn on the TV, an image appears and immediately disappears. First of all, it is necessary to make sure that the electrolytic capacitors of the rectifier filter supplying the LED driver are in good working order, and check the LEDs by connecting those that are known to be working for diagnostics.
In most cases of lack of backlighting, it becomes necessary to disassemble the panel in order to check the LEDs, connectors, loops and all contact connections. If one or more LEDs do not work in one line, then they are broken and should be replaced.
To identify an open circuit in the LED lines without disassembling the panel, a current source is required. It is impossible to open the junctions connected in series with a simple multimeter; a voltage of several tens of volts is required.
Repair or diagnostics of the motherboard T.MS6M181.7A 11453, DVD 2013 V2.0 should start with checking the stabilizers or power converters of its microcircuits. If necessary, you should update the software (software).
When repairing the MB board, you need to check its components YD1517, MST6M181VF-LF-Z1,. Defective elements should be replaced. If BGA chips are installed, their failure is usually localized by warming up.
The malfunction of the SDT-3SP512-36 tuner is established after checking the software and all supply voltages at its terminals, including the supply voltage of the varicaps (30-33V).

Attention! Users and owners of RB-24S2UFD 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 may lead to complete non-repairability of the device.

DOWNLOAD FIRMWARE FOR SPI FLASH  ----------->   RUBIN RB-24S2UFD , Main: T.MS6M181.7A 11453 , DVD 2013 V2.0, Panel: V236H1-P01

 The appearance of the MainBoard T.MS6M181.7A is shown in the figure below:

Repairing the motherboard T.MS6M181.7A, which uses the multifunctional processor MST6M181VS, combined with a scaler, it is advisable to start by checking the stand-by power supply, which is implemented using a separate 3.3V linear stabilizer. Further, in the operating mode, you should check the operability of linear stabilizers or voltage converters required to provide power to the processor nodes: 1.2V, 2.5V, 3.3V. DDR W9425G6JH memory requires 2.5V voltage. In the presence of a backlight and no image, it is advisable to measure the power supply of the LCD panel 5V or 12V, depending on the type of panel used, directly on the LVDS connector. If the TV does not come out of Stand-by, does not respond to the remote control and control buttons, you should update the SPI FLASH software.

T.MS6M181.7A can be used in TVs:
AKAI LEA-19V07P (Panel M185B3-LC1), AKAI LEA-22V07P (Panel M215HGE-L10 Rev.C1), ERISSON 22LEE01 (Panel CLAA215FA04), FUSION FLTV-D22H11 (Panel LQ215M1LGN2), HYUNDAI H-LED19V13 (Panel CX185LEDM ), HYUNDAI H-LED15V7 (Panel N156B6-L0B Rev. C1 / Rev. C2), HYUNDAI H-LEDVD24V10 (Panel M236H3-LA2), RUBIN RB-19S2U (Panel HT185WX1-100), RUBIN RB-22S2UF (Panel LE2360A-V02), RUBIN RB-22S2UFD (Panel 22 дюйма), RUBIN RB-24S2UFD (Panel V236H1-P01).
External view of the power supply
The main features of the RUBIN RB-24S2UFD device:
A matrix (LED panel) V236H1-P01 or TB236F101-A is installed.
The matrix control uses the Timing Controller (T-CON) HM236WU1-100.
To power the backlight LEDs, the MAK2592 LED driver is used, controlled by the 144B2 EUP2589 PWM controller (30). The keys of the STU606S type are used as power elements of the LED driver (3).
The formation of the necessary supply voltages for all nodes of the RUBIN RB-24S2UFD TV is carried out by the LK-SP104804B power module, or its analogs.
MainBoard - the main board (motherboard) is a T.MS6M181.7A module, using YD1517, MST6M181VF-LF-Z1 microcircuits, and others.
The SDT-3SP512-36 tuner provides reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: CMO
Model: V236H1-P01
Type: a-Si TFT-LCD, CELL
Diagonal size: 23.6 inch
Resolution: 1920x1080, FHD
Display Mode: TN, Normally White, Transmissive
Active Area: 521.28x293.22 mm
Surface: Antiglare (Haze 25%), Hard coating (3H)
Glass Depth: 0.70 + 0.70 mm
Contrast Ratio: 800: 1
Display Colors: 16.7M (6-bit + Hi-FRC), CIE1931 72%
Response Time: 1.5 / 3.5 (Tr / Td)
Frequency: 60Hz
Signal Interface: LVDS (2 ch, 8-bit), 30 pins
Voltage: 5.0V
RUBIN RB-24S2UFD TV with LCD V236H1-P01, 24 "(61 cm) diagonal in 16: 9 format. The required screen brightness of 300 cd / m² is provided by LED backlighting. Dynamic contrast ratio of 100,000: 1 is achieved by special control of LED operation The LED panel of this TV is equipped with Edge LED backlighting.The design and technical capabilities of the TV provide viewing of broadcasts and movies in high quality HD at a resolution of 1920x1080 pixels in graphic resolution according to the standard 1080p (Full HD) .Input high-frequency or video signal can be processed in analog systems PAL, SECAM Graphic processing and digital signal formation occurs in the standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p Supported multimedia file formats: MP3, WMA, MPEG4, VideoCD, Picture CD, JPEG.
The power of the sound system is 6 W (2x3 W), 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, component, VGA, HDMI, USB. A headphone output is provided. To connect a computer or laptop to this TV model, a VGA (D-Sub 15) connector on the TV case is used, this interface supports resolutions: 640x480, 800x600, 1024x768, 1360x768.
The power consumed by the TV in operating mode from the network is 48 watts.
Overall dimensions: 623x463x120 mm.
TV weight: 5.3 kg.
Attention! The V236H1-P01 panel of the RUBIN RB-24S2UFD LED TV is an expensive and unreliable element.
Do not allow any impact on the glass and pressure on the screen surface to avoid damage to the LED panel!
It is also unsafe for liquid to spill onto the screen. Sometimes one drop is enough if it drips down the glass onto the cables to make the TV unrepairable.

REPAIRING / SERVICING TV RUBIN RB-24SE5F

 Technical description and composition of the RUBIN RB-24SE5F TV, panel type and modules used. The composition of the modules.
RUBIN LED
Model: RB-24SE5F
Chassis / Version: TP.VST59.P63
Panel: M240HTN01.2
Power Supply (PSU): integrated into MainBoard
PWM Power: LD7536R
MainBoard: TP.VST59.P63
IC MainBoard: CPU: TSUMV59XE-Z1, SPI FLASH: GD25Q32, SOUND: YD1517P
Specifications RB-24SE5F
RUBIN RB-24SE5F
General recommendations for TV LCD LED repair
Repair of the RUBIN RB-24SE5F TV should begin with a careful external examination of all its constituent elements and modules. It often happens that visible damage to elements or connections helps determine the direction of troubleshooting. 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 cases where the RUBIN RB-24SE5F TV does not turn on, does not respond to the remote control and buttons, no indicators on the front panel light up or blink, and there are no sounds and no signs of operation when turned on, the power module is most likely faulty or there is no power processor on the motherboard (a typical defect of some RUBIN TV models). 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).
If the RUBIN RB-24SE5F has no picture, but there is sound and the TV is controlled from the remote control, there is likely a malfunction in the M240HTN01 panel backlight circuits. 2. The LEDs or the power converter - LED driver may be faulty. Often in such cases, when you turn on the TV, an image appears and immediately disappears. First of all, it is necessary to make sure that the electrolytic capacitors of the rectifier filter supplying the LED driver are in good working order, and check the LEDs by connecting those that are known to be working for diagnostics.
It is often necessary to disassemble the panel to check the health of the LEDs, as well as the contact connections in the connectors and solders.
When diagnosing, it must be borne in mind that it is impossible to check for an open in the circuit of the LED lines without disassembling the panels using a tester or multimeter. To open all PN junctions connected in series, a voltage of the order of several tens of volts is required, and ideally a current source.
Diagnostics and repair of the TP.VST59.P63 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 CPU: TSUMV59XE-Z1, SPI FLASH: GD25Q32 microcircuits are made with the necessary equipment and the corresponding element base. Malfunctions associated with the use of BGA soldering technologies can be localized by the warm-up method.

Attention to users! Independent repair of the RUBIN RB-24SE5F TV without proper qualifications and experience can lead to its complete non-repairability!

DOWNLOAD FIRMWARE FOR SPI FLASH  ----------->   RUBIN RB-24SE5F, Main: TP.VST59.P63 , Panel: M240HTN01.2

 The appearance of MainBoard TP.VST59.P63 is shown in the figure below:
TP.VST59.P63
The TP.VST59.P63 motherboard is combined with a power supply module and is an independent device based on the TSUMV59Xxx multifunctional processor. Repair of such a board must begin with checking the power supply elements, as well as the operability of voltage converters and linear stabilizers required to provide power to certain processor nodes, in particular: core power supply + 1.2V, built-in DDR + 1.8V memory and stand-by mode node by 3.3V. The supply voltage of the LCD panel is 5V or 12V, depending on the type of panel used, it is necessary to check directly on the LVDS connector.
TP.VST59.P63 can be used in TVs:
RUBIN RL-22SE5F (Panel M215HGE-L2-M), RUBIN RB-24SE5F (Panel M240HTN01.2).
The main features of the RUBIN RB-24SE5F device:
Installed matrix (LED-panel) M240HTN01. 2.
The power module is combined with the MainBoard and is made according to the AC / DC flyback voltage converter using LD7536R microcircuits.
MainBoard - the main board (motherboard) is a TP.VST59.P63 module, using CPU chips: TSUMV59XE-Z1, SPI FLASH: GD25Q32, SOUND: YD1517P and others.
Additional technical information about the panel:
Brand: AUO
Model: M240HTN01.2
Type: a-Si TFT-LCD, Panel
Diagonal size: 24.0 inch
Resolution: 1920x1080, FHD
Display Mode: TN, Normally White, Transmissive
Active Area: 531.36x298.89 mm
Surface: Antiglare, Hard coating (3H)
Brightness: 250 cd / m²
Contrast Ratio: 1000: 1
Display Colors: 16.7M (6-bit + Hi-FRC), CIE1931 72%
Response Time: 3.5 / 1.5 (Tr / Td)
Frequency: 60Hz
Lamp Type: 9S4P WLED Without Driver
Signal Interface: LVDS (2 ch, 8-bit), 30 pins
Voltage: 5.0V
RUBIN RB-24SE5F TV with LCD M240HTN01.2, 24 "(61 cm) diagonal in 16: 9 format. The required screen brightness of 300 cd / m² is provided by LED backlighting. Dynamic contrast ratio of 160,000: 1 is achieved by special LED control .The technology of manufacturing the screen of this TV model is realized with LED backlight. The design and technical capabilities of the TV provide viewing of broadcasts and movies 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 takes place in 480i, 480p, 576i, 576p, 720p, 1080i, 1080p standards Supported multimedia file formats: MP3, WMA, MPEG4, Xvid, DivX, MKV, JPEG.
The power of the sound system is 6 W (2x3 W), 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, component, VGA, HDMI, USB. A headphone output is provided. To connect a computer or laptop to this TV model, a VGA (D-Sub 15) connector on the TV case is used, this interface supports resolutions: 640x480, 800x600, 1024x768, 1360x768, 1920x1080.
Dimensions: with stand 557x388x170 mm, without stand 557x343x50 mm.
TV weight: 4.2 kg.
Attention! The M240HTN01.2 panel of the RUBIN RB-24SE5F LED TV is an expensive and unreliable element.
Do not allow any impact on the glass and pressure on the screen surface to avoid damage to the LED panel!

It is also unsafe for liquid to spill onto the screen. Sometimes one drop is enough if it drips down the glass onto the cables to make the TV unrepairable.

REPAIRING / SERVICING TV RUBIN RB-24SE9T2S

Technical description and composition of the RUBIN RB-24SE9T2S TV, panel type and modules used. The composition of the modules.
RUBIN LED
Model: RB-24SE9T2S
Chassis / Version: CV512L-B
Panel: CX236LEDM
LED backlight: RF-AD236C14-1007S-01 A2
LED driver (backlight): integrated into PSU
Power Supply (PSU): SHG2401A-207S DLBB393
PWM Power: SOT-23-6 (OB2273)
MainBoard: CV512L-B JRA-512LB-15H
IC MainBoard: CPU: S2T512, Spi Flash: 25Q64FVSIG, Audio: YD1517P
Tuner: DMI21-C5I2RH, CDT-9NS161-RD41
Control: IR: 200-GJR-LE32190-0H
Specifications RB-24SE9T2S
RUBIN RB-24SE9T2S
General recommendations for TV LCD LED repair
Possible manifestations of malfunctions
- RUBIN RB-24SE9T2S TV does not turn on and does not show any signs of turning on, does not respond to control buttons and to the remote control.
Often in such cases, the SHG2401A-207S power supply module is faulty. In the absence of the necessary supply voltages in the secondary circuits of the converters, it is necessary to check the power switches and rectifier diodes for possible partial or complete breakdown.
In case of diode breakdowns in the secondary circuits, the converter can operate in an emergency mode of short circuit without output voltages, and in the event of a short circuit in the power elements of the primary circuit, the mains fuse and / or the current sensor in the source of the key usually breaks off.
Mos-Fet power switches used in switching power supplies sometimes fail due to a malfunction of any other elements that can disable it in the key mode, or create an excess of the maximum permissible key parameters. These can be elements supplying a PWM regulator, frequency setting or damper circuits, or elements of negative feedback in the stabilization circuit. PWM controllers, in the absence of visible damage or outright short circuits between the terminals, are checked by replacing them with new ones, or knowingly working properly.
- There is no picture, but there is sound, it reacts to the remote control. Or the image appears when turned on and immediately disappears
As a rule, in such cases there is no display backlight. The reason for this may be an open circuit in the LED circuit, or a problem in stabilizing their power supply.
When trying to detect a break in the LED lines, it should be borne in mind that it is difficult to do this without disassembling the panel. For example, a current source is required to open PN junctions connected in series.
- 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 CV512L-B motherboard should begin with checking the stabilizers and power converters necessary to power the microcircuits and matrix. If necessary, you should update or replace the software (software). If it is not possible to replace the MB (SSB) board, it is necessary to check the health of its elements - CPU: S2T512, Spi Flash: 25Q64FVSIG, Audio: YD1517P. Defective components must be replaced.
If there is no tuning for terrestrial or cable TV channels, you should make sure that the software is correct, as well as that the supply voltages on the DMI21-C5I2RH, CDT-9NS161-RD41 tuner terminals are in accordance. It is also necessary to check with an oscilloscope the presence of pulses of data exchange between the tuner and the processor via the I2C bus.

Attention to TV owners! Attempts to repair RUBIN RB-24SE9T2S yourself are not recommended by the manufacturer and can lead to serious negative consequences!

DOWNLOAD SCHEMATIC DIAGRAM  / SERVICE MANUAL   ------------------>    Main CV512L-B

 The appearance of the MainBoard CV512L-B is shown in the figure below:
CV512L-B
CV512L-B can be used in TVs:
BBK 28LEM-1021/T2C (Panel SV275SHD HX010403 X41), BBK 22LEM-1026/FT2C (Panel M215HGE-P02), DEXP H24B7100E (Panel CX236LEDM (V236BJ1-P01)), DEXP F22B7000E/B (Panel CX215LEDM), ERISSON 22LEE31T2 (Panel CX215LEDM), RUBIN RB-22SE2FT2S (Panel 1080p Full HD 1920x1080), SUPRA STV-LC24T880WL (Panel HV236WHB-N00), SUPRA STV-LC22T880FL (Panel LC215DTBA).
External view of the power supply
Key features of the RUBIN RB-24SE9T2S device:
Installed matrix (LED-panel) CX236LEDM.
A converter combined with a power supply is used to power the backlight LEDs.
The formation of the necessary supply voltages for all nodes of the RUBIN RB-24SE9T2S TV is carried out by the SHG2401A-207S power module, or its analogs using SOT-23-6 (OB2273) microcircuits.
MainBoard - the main board (motherboard) is a CV512L-B module, using CPU chips: S2T512, Spi Flash: 25Q64FVSIG, Audio: YD1517P and others.
Tuner DMI21-C5I2RH, CDT-9NS161-RD41 provides reception of television programs and tuning to channels.
RUBIN RB-24SE9T2S TV with LCD CX236LEDM, diagonal 24 "(61 cm), 16: 9 format. The required screen brightness of 300 cd / m² is provided by LED backlighting. Dynamic contrast ratio of 200,000: 1 is achieved by special control of the LEDs. technology of production of the screen of this TV model is realized LED backlighting.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. and the digital signal is generated in the standards 480i, 480p, 576i, 576p, 720p, 1080i Supported media file formats: MP3, WMA, MPEG4, MKV, JPEG.
Speaker power of 10 W (2x5 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 x2, component, SCART, VGA, HDMI, USB. A headphone output is provided. To connect a computer or laptop to this TV model, a VGA (D-Sub 15) connector on the TV case is used, this interface supports resolutions: 640x480, 800x600, 1024x768, 1360x768.
The digital tuner is capable of receiving television channels in the DVB-T MPEG4, DVB-C, DVB-T2, DVB-S2 standards.
Dimensions: with stand 551x356x175 mm, without stand 551x333x54 mm.
TV weight: with stand: 4.3 kg, without stand: 3.7 kg.
Attention! The CX236LEDM panel of the RUBIN RB-24SE9T2S LED TV is an expensive and unreliable element.
Do not allow any impact on the glass and pressure on the screen surface to avoid damage to the LED panel!
It is also unsafe for liquid to spill onto the screen. Sometimes one drop is enough if it drips down the glass onto the cables to make the TV unrepairable ................................ .....................