PANASONIC
Model: TX-LR32C10 TX-L32C10
Chassis / Version: KM02
Panel: LC320WXN (SB) (C2)
T-CON: LC320WXN-SBA1 6870C-0238B
Inverter (backlight): KLS-EE32PIH12M REV 1.2 6632L-0530A
PWM Inverter: BD9897FS
Power Supply (PSU): TNP4G459AG A64343NI
PWM Power: FA5696N, MP2B6120
MOSFET Power: 13N60E (B1DEGR000060)
MainBoard: TNP4G460 1 A A21669F
IC MainBoard: CPU: R2A11014FT (C1AB00002855), EEPROM: 24C16, AUDIO: LV4920H
Tuner: ENG39E04GF
Control: Remote: N2QAYB000370
TX-L32C10 Specifications
PANASONIC TX-LR32C10
General recommendations for TV LCD repair
Possible manifestations of defects
- The PANASONIC TX-LR32C10 TV does not turn on, does not respond to the remote control and control panel buttons, the indicators do not light up or flash.
In some of these cases, the fault is detected in the TNP4G459AG power supply module. Then we recommend that you measure its output voltages and, if they are absent, you should check the serviceability of the power switches (13N60E (B1DEGR000060)) and the rectifier diodes of the converters for a possible 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) FA5696N, MP2B6120 are usually checked by replacing them with new ones, or knowingly working properly.
- 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.
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, 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 turn on, the indicator signals the standby or operating mode, or blinks.
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). In cases of complex MB (SSB) repairs and with the necessary skills and equipment, it may sometimes be necessary to replace its chips CPU: R2A11014FT (C1AB00002855), EEPROM: 24C16, AUDIO: LV4920H and other possible faulty components. Malfunctions associated with the use of BGA soldering technologies are usually easily diagnosed by the warm-up method.
If the TV operates normally from external devices, but does not tune to TV channels, the ENG39E04GF 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.
Once again, we remind TV users: do not try to repair yourself without the appropriate knowledge, experience and the necessary qualifications! Trust the repairs to professionals with sufficient experience in the field of electronic repair.
DOWNLOAD SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> PANASONIC TX-LR32C10 Chassis KM02 for models TX-L32C10B, TX-L32C10E, TX-L32C10ES.
The MainBoard TNP4G460 is shown in the figure below:TNP4G460
External view of the power supply
The main features of the PANASONIC TX-LR32C10 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-LR32C10 TV is carried out by the TNP4G459AG power module, or its analogs using FA5696N, MP2B6120 microcircuits and 13N60E power switches (B1DEGR000060).
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-L32C10 TV with LC320WXN LCD, 32 "(81 cm) diagonal, 16: 9 format.
The LC320WXN panel and TNP4G460 firmware can display HD images at 1366x768 pixels for 720p graphics resolution (HD Ready). 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 x2, audio x2, component, VGA, HDMI x2. To connect a computer or laptop, a VGA (D-Sub 15) connector is used that supports resolutions: 640x480, 800x600, 1024x768, 1280x1024, 1360x768.
The power consumed by the TV in operating mode from the mains is 121 W.
Dimensions: with stand 798x551x217 mm, without stand 798x511x87 mm.
TV weight: with stand: 13.5 kg, without stand: 11.5 kg.
Attention! The LC320WXN (SB) (C1) panel of the PANASONIC TX-L32C10 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!