Samsung PN50C450B1DXZC, Service Manual

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Samsung Electronics 4-11
Troubleshooting
4-1-4 Troubleshooting Procedures by assembly

If Major Symptoms is happened, Check Assembly refer to table as follow.
Assembly Major Symptoms
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.