Panasonic Plasma TV - PN50C450B1DXZC– Service Mode – Fault Symptoms and Suspected-able Board Assemblies.
SMPS-PDP TV > No power, Blank screen, the Relay repeats On and Off
ASSY PDP P-X-MAIN BOARD> Blank screen
ASSY PDP P-Y-MAIN BOARD> Blank screen
ASSY PDP P-LOGIC MAIN BOARD> Blank screen, Screen noise
ASSY PDP P-X-MAIN BUFFER BOARD> Upper screen is blank
ASSY PDP P-Y-MAIN BUFFER BOARD> Lower screen is blank
ASSY PDP P-E-BUFFER BOARD> Corresponding Buffer Board block screen is blank
ASSY PDP P-F-BUFFER BOARD> Corresponding Buffer Board block screen is blank
ASSY PCB MISC-MAIN> No Power, Abnormal screen for each input source, PIP screen trouble, Sound trouble.
ASSY BOARD P-TOUCH FUNCTION&IR> The side function key does not work properly. The remote control does not work properly, the LED does not work properly.Service adjustment after board replacement
If adjustment equipment is available
* PDP Option of Factory Mode > set the Factory Data Type item as the suitable value of relevant model.
* Adjust Calibration of Factory Mode for each mode.
* Adjust White Balance of Factory Mode.
If adjustment equipment is available
* PDP Option of Factory Mode > set the Factory Data Type item as the suitable value of relevant model.
* Adjust Calibration of Factory Mode for each mode.
* Adjust White Balance of Factory Mode.
If adjustment equipment is not available
# Write down the value of HDMI White Balance of Factory Mode before replacing Board.
# PDP Option of Factory Mode > set the Factory Data Type item as the suitable value of relevant model.
# Set the value of HDMI White Balance with the value written down before.
# Write down the value of HDMI White Balance of Factory Mode before replacing Board.
# PDP Option of Factory Mode > set the Factory Data Type item as the suitable value of relevant model.
# Set the value of HDMI White Balance with the value written down before.
HOW TO ENTER & HOW TO EXIT THE SERVICE MODE
To Enter : POWER OFF> MUTE> 1> 8> 2> POWER ON
To Exit : POWER OFF> POWER ON
ADJUSTMENT KEYS USED IN SERVICE MODE
> Channel ▲▼ Key : Select an item.
> Volume ◄/► Key : Adjust the value up or down.
> Volume ◄/► Key : Adjust the value up or down.
> MENU Key : Save the changes to the EEPROM and return to the higher-level mode.
> Using the Numeric (0~9) keys; you can select a channel.
> Using the SOURCE key; you can switch AV modes.
> Using the Numeric (0~9) keys; you can select a channel.
> Using the SOURCE key; you can switch AV modes.
THE FIRMWARE VERSION DISPLAY
The version of the firmware displayed at the bottom of the screen may differ and the firmware is subject to change for the improvement of product functions. If you have adjusted the settings in Service Mode, you have to reset the product.
Procedures for checking in the User Menu
* Select the “Setup” menu in the Menu screen
* Place the cursor over the “Software Upgrade” of “Setup” and press the “Info” key on the remote control.
* The version of the program is displayed at the bottom of the Menu screen.
* Select the “Setup” menu in the Menu screen
* Place the cursor over the “Software Upgrade” of “Setup” and press the “Info” key on the remote control.
* The version of the program is displayed at the bottom of the Menu screen.
FIRMWARE UPGRADE
How to check Program Version on factory mode.
VOLTAGE ADJUSTMENT AFTER REPLACING THE SMPS
After replacing the SMPS or PDP panel, you must adjust the voltage referring to the voltage label printed on the panel. (If you do not adjust the voltage, an abnormal discharge symptom may appear.)
Point of adjusting SMPS voltage
