Technical description and composition of the PANASONIC TX-LR32C5 TV, panel type and modules used. The composition of the modules.PANASONIC
Model: TX-LR32C5
Chassis / Version: 715G5317
Panel: V315B6-L04
Lamp backlight: 3 LAMP CCFL
Inverter (backlight): integrated into PSU & Trans Board
Power Supply (PSU): 715G5373-P02-000-003H
MainBoard: 715G5317-MOF-000-004B
IC MainBoard: 24C32, MT5135AE, IT6633E-T, AD82587
Tuner: ENV57U09D5F
TX-LR32C5 Specifications
PANASONIC TX-LR32C5
General recommendations for TV LCD repair
Possible manifestations of defects
- TV PANASONIC TX-LR32C5 does not turn on and does not show any signs of turning on, does not respond to control buttons and to the remote control.
In such cases, you should start looking for a fault in the 715G5373-P02-000-003H power supply circuits. Then you should measure its output voltages and, in case of their complete or partial absence, it is necessary to check the serviceability of the power switches and rectifier diodes of the converters for the presence of a possible short circuit.
In case of breakdowns in the secondary circuits of the converter, it can usually work in an emergency mode in a short-circuit mode, and with a short circuit in the power elements of the primary circuit, the mains fuse or current sensor in the source of the key most often breaks off.
The breakdown of power switches (MosFet) in switching sources is sometimes caused by malfunctions of other circuit elements, for example, in the circuits supplying the PWM controller, frequency setting or damper, as well as in the circuits of Negative Feedback (OOS) stabilization. PWM controllers (PWM), if they do not have visible damage to the case and an outright short circuit between the terminals, are usually checked by replacement.
- There is no picture, but there is sound and reaction to the remote control. Or, for a second, the image may appear immediately after switching on.
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. If all the electrolytic capacitors of the filter for the power supply of the inverter are in good working order, you should make sure that the lamps are in good condition, then you need to check the keys of the converter and the secondary windings of the transformers.
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 indicator blinks or is on constantly, the TV does not turn on, does not respond to the remote control.
Repair or diagnostics of the 715G5317-MOF-000-004B 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 MB (SSB) repair is possible only in the conditions of a service center with the necessary equipment. Checking or replacing 24C32, MT5135AE, IT6633E-T, AD82587 elements 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.
Before changing the ENV57U09D5F tuner, if it is not possible to tune to television channels, you should make sure that there are supply voltages, which must be measured at the corresponding tuner terminals and check the software for correctness. The pulses of the data exchange of the tuner with the processor can be monitored with an oscilloscope
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 FIRMWARE FOR SPI FLASH -----------> 24C32 PANASONIC TX-LR32C5, Main: 715G5317-MOF-000-004B, Panel: V315B6-L04
The appearance of the MainBoard 715G5317-MOF-000-004B is shown in the figure below:715G5317-MOF-000-004B
External view of the power supply
The main features of the PANASONIC TX-LR32C5 device:
Installed matrix (LCD panel) V315B6-L04.
A converter combined with a power supply is used to power the backlight lamps.
The formation of the necessary supply voltages for all nodes of the PANASONIC TX-LR32C5 TV is carried out by the 715G5373-P02-000-003H power module, or its analogs.
MainBoard - the main board (motherboard) is a 715G5317-MOF-000-004B module, using 24C32, MT5135AE, IT6633E-T, AD82587 and others.
Tuner ENV57U09D5F provides reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: CHIMEI INNOLUX
Model: V315B6-L04
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1366x768, WXGA
Display Mode: Super MVA, Normally Black, Transmissive
Active Area: 697.685x392.256 mm
Surface: Antiglare (Haze 11%), Hard coating (3H)
Brightness: 350 cd / m²
Contrast Ratio: 2300: 1
Display Colors: 16.7M (8-bit), CIE1931 72%
Response Time: 8.5 (G to G)
Frequency: 60Hz
Lamp Type: 3 pcs CCFL Embedded (Balance board)
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V
The Panasonic website has a firmware update for the TX-LR32C5 model. Version Ver. 2.42, file P124_0242.zip (9 822 682 bytes) dated 24 Oct 2012.
PANASONIC TX-LR32C5 TV with LCD V315B6-L04, 32 "(81 cm) diagonal, 16: 9 format.
The V315B6-L04 panel and the 715G5317-MOF-000-004B firmware enable HD viewing at 1366x768 pixels for 720p (HD Ready) graphics decomposition. 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: MP3, WMA, MPEG4, MKV, JPEG.
The power of the acoustic audio system is 10 W (2x5 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, component, SCART, RGB, VGA, HDMI x2, USB. A headphone output is provided for individual listening. To connect a computer or laptop, a VGA (D-Sub 15) connector is used, which supports resolutions: 1024x768, 1280x1024, 1360x768, 1920x1080.
The digital tuner is able to receive terrestrial and cable channels in the DVB-T MPEG4, DVB-C standards.
The power consumed by the TV in operating mode from the network is 105 watts.
Dimensions: with stand 779x547x230 mm, without stand 779x495x128 mm.
TV weight: with stand: 10.5 kg, without stand: 9.5 kg.
Attention! The V315B6-L04 panel of the PANASONIC TX-LR32C5 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!