[Part-2]
TROUBLESHOOTING PROCEDURES BY ASSEMBEY. SERVICE MODE & DRIVE BOARD TROUBLESHOOTING
- SMPS-PDP TV: Can be located at the top center of the panel, look after back cover opened. [No Power, Blank Screen, the Relay repeats ON OFF.]
- ASSY PDP MODULE P-X-MAIN: Vertically fitted on the right side of the panel, look after back cover opend. [Blank Screen].
- ASSY PDP MODULE P-Y-MAIN: Can be located on the Left side of the panel, next to Main AMPS. [Blank Screen]
- ASSY PDP MODULEP-LOGIC MAIN: Can be located next below the SMPS power supply board. [Blank screen, Screen noise]
- ASSY PDP MODULEP-Y-MAIN SCAN BUFFER: Can be located at the extreme left, fitted vertically. [Row Bar screen is blank]
- ASSY PDP MODULE P-ADDRESS E BUFFER: Can locate at the bottom left side. [Corresponding buffer Board block screen is blank]
- ASSY PDP MODULE P-ADDRESS F BUFFER: Can locate at the bottom right. [Corresponding buffer board Block screen is blank]
- ASSY PCB MISC-MAIN: Located just below the SMPS board. [No power, Abnormal screen for each input source, PIP screen trouble, Sound trouble]
- ASSY BOARD P-FUNCTION: Located extreme left down side. [The side function key does not properly]
- ASSY BOARD P-POWER&IR: Located at the bottom side [The remote control does not work properly, the LED does not work properly.
- ASSY BOARD P-SIDE AV: Located rigth bottom side [The AV-2 and S-Video 2 do not work properly]
DRIVE BOARD TROUBLESHOOTING
- No voltage output => Operating voltage does not exists => PSU
- No Display => Operating Voltage exists, but no image on screen => Y-MAIN, X-MAIN, Logic Main, Cable.
- Abnormal Display => Abnormal image on screen, (Not open or short) => Y-MAIN, X-MAIN, Logic Main.
- Sustain Open => Some horizontal lines does not exist on screen => Scan buffer, FPC of X/Y
- Sustain short => Some horizontal lines appears to be linked on screen => Scan Buffer, FPC of X/Y
- Address Open => Some vertical lines does not exist on screen => Logic Main, Logic Buffer, TCP
- Address short => Some vertical lines appears to be linkde on screen => Logic Main, Logic Buffer, TCP
SERVICE MODE [WITH GENERAL REMOTE CONTROL]
TO ENTER SERVICE MODE: POWER OFF=>MUTE=>1=>8=>2=>POWER ON
TO EXIT FROM SERVICE MODE: POWER OFF=>POWER ON
TO ENTER SERVICE MODE [WITH FACTORY REMOTE CONTROL]
POWER ON=> INFO=> FACTORY key
TO EXIT FROM SERVICE MODE
POWER OFF=>POWER ON
Press the factory key twice, with a keystroke interval of more than one second.[Pressing once enters Aging Mode].
