Technical description and composition of the PANASONIC TX-32CSR510 TV, panel type and modules used. The composition of the modules.PANASONIC LED
Model: TX-32CSR510
Chassis / Version: LA61
Panel: LC320DXJ (SF) (E1)
LED backlight: F105M5P39F TNMX009 PN-EL-32-21 - V0
T-CON: 6870C-0442B & 6870S-1578A
LED driver (backlight): integrated into PSU
PWM LED driver: BL0100A
MOSFET LED driver: B1CFRR000028
Power Supply (PSU): TNP4G572 TXN / P1NEVE
PWM Power: NCP1234AD100R2G
MOSFET Power: TK8A65D
MainBoard: TNP4G568 TXN / A1AMVR
IC MainBoard: CPU: PEAKS-sLD8A, LNBH29PT (PWM)
Tuner: TDSA-G320D
Control: WI-FI: DNUA-P75
TX-32CSR510 Specifications
PANASONIC TX-32CSR510
General recommendations for TV LCD LED repair
Possible malfunctions
- The PANASONIC TX-32CSR510 TV does not turn on, does not respond to the remote control and control panel buttons, does not light or blink indicators.
In some of these cases, the fault is detected in the TNP4G572 power supply module. It is then necessary to measure its output voltages and, in their absence, the power switches (TK8A65D) and rectifier diodes of the converters should be checked for the probability of a short circuit.
In case of breakdowns of semiconductors in the secondary circuits, the converter can usually operate in an emergency mode in a short-circuit mode, and in case of a short circuit in the power elements of the primary circuit, the mains fuse often breaks.
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 NCP1234AD100R2G, in the absence of visible damage or outright short circuits between the terminals, are checked by replacing them with new ones, or known to be working properly.
- 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.
Often in such cases, there is no backlighting of the LED panel. 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.
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.
- 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 TNP4G568 motherboard should begin with checking the stabilizers and power converters required to power the microcircuits and the matrix. If necessary, you should update or replace the software (software). Often the MB (SSB) board needs to be replaced in the event of complex malfunctions that are difficult to detect. When trying to repair, you should check its elements - CPU: PEAKS-sLD8A, LNBH29PT (PWM) and replace the failed chips with new ones. Some malfunctions may be associated with the use of BGA soldering technologies in modern Main Board. Usually such defects are detected by local heating of the chip.
Before replacing the TDSA-G320D 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
If the PANASONIC TX-32CSR510 has no image, but there is sound, the display backlight often simply does not work. Moreover, in LED TVs, the LEDs inside the panel usually fail, less often the LED driver.
In such cases, you can see a barely noticeable image with a successful hit of external light on the screen.
Replacing the LEDs requires disassembling the LCD panel - a process that requires experience and qualifications from the master. We do not recommend doing such work on your own to the owners of TVs and craftsmen who do not have experience in repairing LCD panels
If there is no image, and the backlight is on, the screen becomes slightly lighter when turned on, and in an open TV you can see the light through the holes in the panel case.
In this case, the panel may also be faulty - damage to strips, loops, for example, as a result of moisture ingress after unsuccessful washing of the screen, the T-CON (Timing Controller) board may be faulty. But often the main board MainBoard turns out to be faulty, a software failure is also possible.
Then, first of all, it is necessary to check the panel supply voltage, the fuses on the T-CON board, as well as the supply and reference voltages of the column and line drivers - VGH, VGL, Vcom.
If these measurements are within normal limits, it is necessary to trace the passage of LVDS signals from the MainBoard with an oscilloscope, as well as synchronization signals to the loops with drivers.
Flooded or unsuccessfully washed screens of LED-TVs can be restored, in about half of the cases, usually if significant damage has not formed in the cables and panel strips.
Users and owners of TVs should remember that attempts to self-repair the PANASONIC TX-32CSR510 TV without the appropriate qualifications and the necessary experience can lead to serious negative consequences!
DOWNLOAD SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> PANASONIC TX-32CSR510 Chassis LA61 for TX-32CS510E, TX-32CSR510
The MainBoard TNP4G568 is shown in the figure below:TNP4G568
External view of the power supply
The main features of the PANASONIC TX-32CSR510 device:
Installed matrix (LED panel) LC320DXJ (SF) (E1).
Matrix control uses the Timing Controller (T-CON) 6870C-0442B.
To power the backlight LEDs, a converter combined with a power supply is used, controlled by the BL0100A PWM controller. The keys of the B1CFRR000028 type are used as power elements of the LED driver.
The formation of the necessary supply voltages for all nodes of the PANASONIC TX-32CSR510 TV is carried out by the TNP4G572 power supply module, or its analogs using NCP1234AD100R2G microcircuits and TK8A65D power switches.
MainBoard - the main board (motherboard) is a TNP4G568 module, using CPU chips: PEAKS-sLD8A, LNBH29PT (PWM) and others.
The TDSA-G320D tuner provides reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: LG Display
Model: LC320DXJ-SFE1
Type: a-Si TFT-LCD, CELL
Diagonal size: 31.5 inch
Resolution: 1366x768, WXGA
Display Mode: IPS, Normally Black, Transmissive
Active Area: 697.685x392.256 mm
Surface: Antiglare (Haze 1%), Hard coating (3H)
Glass Depth: 0.50 + 0.50 mm
Contrast Ratio: 1200: 1
Display Colors: 16.7M (6-bit + Dithering)
Response Time: 8/10 (Tr / Td)
Frequency: 60Hz
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V
TV PANASONIC TX-32CSR510 with LCD display, diagonal size 32 "(81 cm) 16: 9 format. The technology of manufacturing the screen of this TV model is realized with LED backlighting.
The panel and onboard firmware are capable of viewing HD images at 1366x768 pixels for 720p (HD Ready) graphics resolution.
The TX-32CSR510 is equipped with SMART software, built-in applications and Internet connectivity. Internet connection can be made via Wi-Fi wireless connection. 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 standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p. Multimedia file formats supported by the video processor: MP3, WMA, MPEG4, MKV, 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, component, SCART, HDMI x2, USB, Ethernet (RJ-45), Wi-Fi. 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: 640x480, 800x600, 1024x768, 1360x768.
The digital tuner is capable of receiving terrestrial and cable channels in the DVB-T MPEG4, DVB-C, DVB-T2 standards.
Dimensions: with stand 734x474x148 mm, without stand 734x437x69 mm.
TV weight: with stand: 6.5 kg, without stand: 5.5 kg.
Attention! The panel of the LED TV PANASONIC TX-32CSR510 is the most expensive element.
Do not allow any impact on the glass and pressure on the screen surface to avoid damage to the LED panel!
It is 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.