Technical description and composition of the PANASONIC TX-LR32S10 TV, panel type and modules used. The composition of the modules.PANASONIC
Model: TX-LR32S10 TX-L32S10
Chassis / Version: KM03
Panel: LC320WXN (SB) (C2)
T-CON: LC320WXN-SBA1 P / N: 6870C-0238B
Inverter (backlight): KLS-EE32PIH12M
PWM Inverter: BD9897FS
Power Supply (PSU): TNP4G455AJ
PWM Power: FA5501AN, SSC6200, SSC6210
MOSFET Power: 2SK3667 (B1CERR000037), B1CERU000007
MainBoard: TNP4G460
IC MainBoard: CPU: R2A11014FT (C1AB00002855), EEPROM: 24C16, AUDIO: LV4920H
Tuner: ENG39E04GF
Control: N2QAYB000370 000399
TX-L32S10 Specifications
PANASONIC TX-LR32S10
General recommendations for TV LCD repair
Possible manifestations of malfunctions
- The PANASONIC TX-LR32S10 TV does not turn on and does not show any signs of operability at all. No response to the remote control and front panel control buttons.
Most often, with similar manifestations, the main power supply module TNP4G455AJ turns out to be faulty. It is necessary to measure its output voltages, and if they are absent (full or partial), the serviceability of the power switches (2SK3667 (B1CERR000037), B1CERU000007) of the converters and rectifier diodes should be checked 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 is often cut 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 FA5501AN, SSC6200, SSC6210, in the absence of visible damage or outright short-circuits between the terminals, are checked by replacing them with new ones, or knowingly working.
- 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 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.
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, does not respond to the remote control. The indicator blinks or signals the standby mode.
Repair or diagnostics of the TNP4G460 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). Repair of the board and replacement of CPU: R2A11014FT (C1AB00002855), EEPROM: 24C16, AUDIO: LV4920H 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.
If you suspect a malfunction of the ENG39E04GF tuner, first of all, you need to make sure that the software is correct, as well as the presence of the necessary levels of supply voltages and pulses of data exchange with the processor via the I2C bus on the corresponding terminals of the tuner.
Attention! Users and owners of TX-LR32S10 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 the complete non-repairability of the device.
DOWNLOAD SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> PANASONIC TX-L32S10 Chassis KM03 for models TX-L32S10B, TX-L32S10E, TX-L32S10L, TX-L37S10B, TX-L37S10E, TX-L37S10L, TX-LF32S10, TX-LF37S10
The MainBoard TNP4G460 is shown in the figure below:
TNP4G460
The main features of the PANASONIC TX-LR32S10 device:
Installed matrix (LCD panel) LC320WXN (SB) (C2).
Matrix control uses the LC320WXN-SBA1 Timing Controller (T-CON).
To power the backlight lamps, the KLS-EE32PIH12M inverter is used, controlled by the BD9897FS PWM controller.
The formation of the necessary supply voltages for all nodes of the PANASONIC TX-LR32S10 TV is carried out by the TNP4G455AJ power module, or its analogs using FA5501AN, SSC6200, SSC6210 microcircuits and 2SK3667 (B1CERR000037), B1CERU000007 power switches.
MainBoard - the main board (motherboard) is a TNP4G460 module, using CPU chips: R2A11014FT (C1AB00002855), EEPROM: 24C16, AUDIO: LV4920H and others.
The ENG39E04GF tuner provides reception of television programs and tuning to channels.
PANASONIC TX-L32S10 TV with LCD LC320WXN, 32 "(81 cm) in 16: 9 format. Dynamic contrast ratio of 20,000: 1 is provided by a special control of the backlight depending on the illumination of areas in the scene.
The LC320WXN panel and TNP4G460 motherboard firmware provide HD and Full HD viewing at 1920x1080 pixels in 1080p (Full HD) graphics. The input analog video signal can be processed in PAL, SECAM, NTSC systems. Graphic processing and formation of a digital signal picture occurs in the 480i, 480p, 576i, 576p, 720p, 1080i, 1080p standards. Multimedia file formats supported by the video processor: JPEG.
The power of the acoustic audio system is 20 W (2x10 W) provided by two speakers. Uses NICAM stereo signal system and Sound Surround function.
External interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV x3, audio x3, S-Video, component x2, VGA, HDMI x3. A headphone output is provided for individual listening. To connect a computer or laptop, a VGA (D-Sub 15) connector is used that supports resolutions: 640x480, 800x600, 1024x768, 1280x1024, 1360x768.
Dimensions: with stand 791x551x217 mm, without stand 791x511x93 mm.
TV weight: 13.5 kg.
Attention! The LC320WXN (SB) (C2) panel of the PANASONIC TX-L32S10 LCD TV is a rather expensive component.
Avoid impacts on glass and pressure on the surface of the screen to avoid irreversible damage to the LCD panel!