Technical description and composition of the ROLSEN RL-23L1002UF TV, panel type and modules used. The composition of the modules.ROLSEN LED
Model: RL-23L1002UF
Chassis / Version: MST6M181
Panel: M230WA01-ED G2 EE01 LED
LED driver (backlight): integrated into PSU
PWM LED driver: OB3362VP (MP3389)
MOSFET LED driver: ME15N10-G (3), SPP9527 EP6304B (8)
Trans LED driver: KTC 401-1040-33501G
Power Supply (PSU): K-L-NM1 465-0101-0B201G PBB2-C2Q227-02556
PWM Power: OB5269CP (8), NCP1271
MOSFET Power: SW7N65
MainBoard: MST6M181-T7S M181-C2P235-02883
IC MainBoard: TDA1517P, IT6633E-P, RT8284N (8)
Tuner: F50CT-2DD-E (x)
RL-23L1002UF Specifications
ROLSEN RL-23L1002UF
General recommendations for TV LCD LED repair
Repair of the ROLSEN RL-23L1002UF TV should begin with a fault diagnosis, which involves a careful examination of the external and internal elements of the device. 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. Charred paint on the upper layer of resistors, electrolytic capacitors of rectifier filters swollen after boiling, cracked soldering on the leads of heating elements or transformers can often suggest the causes of a defect and possible consequences.
In cases where the ROLSEN RL-23L1002UF 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 PBB2-C2Q227 power supply module is most likely faulty -02556, KL-NM1 465-0101-0B201G or there is no processor power on the motherboard (a typical defect of some ROLSEN TV models). The first step is 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 SW7N65 power switch (s) is detected, which can be integrated with a 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.
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 the failure of the PWM regulator microcircuit B4192A OB5269CP (8), (NCP1271) or breaks resistors in its harness.
If the ROLSEN RL-23L1002UF has no image, but there is sound, there may be a malfunction of the M230WA01-ED G2 EE01 LED panel backlight LEDs 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.
A malfunction in the backlight circuits often occurs due to an open circuit in the power supply circuit of the LED lines. It is required to disassemble the panel and check the LEDs themselves, the ration of their conclusions, as well as the reliability of the connections in the connectors and the ration of the connector pins.
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.
If the motherboard M181-C2P235-02883 MST6M181-T7S 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 MB (SSB) repair is possible only in the conditions of a service center with the necessary equipment. Checking or replacing elements TDA1517P, IT6633E-P, RT8284N (8) 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.
If the TV operates normally from external devices but does not tune to TV channels, the F50CT-2DD-E (x) tuner may be faulty. In such cases, first of all, you should make sure that there are supply voltages at its corresponding terminals, as well as the supply of varicaps (30-33V).
Remember! Attempts to repair the ROLSEN RL-23L1002UF 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 -----------> ROLSEN RL-23L1002UF M181, Main: 471-01A2-61703G, Cpu: MST6M182VG-T7S, Spi Flash: 25Q32, Tuner: KTDANW-14-09, Panel - LM230WF5 (TL) (F1), Power Board: 465-01A2-B5269G
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 type 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, the SPI Flash software should be updated.
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
The main features of the ROLSEN RL-23L1002UF device:
Installed matrix (LED panel) M230WA01-ED G2 EE01 LED.
To power the backlight LEDs, a converter combined with a power supply is used, controlled by the OB3362VP PWM controller (MP3389). The transformer KTC 401-1040-33501G is installed in the LED driver converter. The keys of the ME15N10-G (3), SPP9527 EP6304B (8) types are used as power elements of the LED driver.
The formation of the necessary supply voltages for all nodes of the ROLSEN RL-23L1002UF TV is carried out by the K-L-NM1 power module, or its analogs using OB5269CP (8), NCP1271 microcircuits and power switches of the SW7N65 type.
MainBoard - the main board (motherboard) is an MST6M181-T7S module, using TDA1517P, IT6633E-P, RT8284N (8) and others.
The F50CT-2DD-E (x) tuner provides reception of television programs and tuning to channels.
Information from an alternative source:
ROLSEN RL-23L1002UF
Motherboard: MST6M181-T7S, Tuner: F50CT-20D-E
PSU: K-L-NM1 465-01A2-21402G REV: 1.0G
Remote control: 850FH-YB07 ROLSEN RL-17L1002U
Additional technical information about the panel:
Brand: INNOLUX
Model: M230WA01-ED
Type: a-Si TFT-LCD, Panel
Diagonal size: 23.0 inch
Resolution: 1920x1080, FHD
Display Mode: TN, Normally White, Transmissive
Active Area: 509.184x286.416 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 80%
Response Time: 1.5 / 3.5 (Tr / Td)
Frequency: 60Hz
Lamp Type: WLED Without Driver
Signal Interface: LVDS (2 ch, 8-bit), 30 pins
Voltage: 5.0V
ROLSEN RL-23L1002UF TV with LCD M230WA01-ED, 23 "(58 cm) 16: 9. 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 films in high quality HD at a resolution of 1920x1080 pixels in graphic resolution in 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 occurs in 480i, 480p, 576i, 576p, 720p, 1080i, 1080p standards Supported media file formats: MP3, WMA, MPEG4, JPEG.
The power of the sound system of 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 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 40 watts.
Dimensions: without stand 568x418x36 mm.
TV weight: without stand: 4 kg.