Check all the settings microprocessor's adjust process menu.
Is in/output of pin 3 of W7 and line. IC801 normal? pins 3, 4, 5 of W14 tuner and its 1 of IC402
IC801 Check IC402 Is voltages at No Is input at pin Is in/output of Check the its IC402 normal? power line.
peripheral parts. normal?
Yes normal?
No Check tuner
and its
IC1201 input at pin IC801, Yes Check IC402 No Is the pins 2 Is in/output of 73 IC801 AV1 line 4 of IC402 and its normal? at "L" state? peripheral parts.
IC1201 normal? Is output at pin 2 of W7 tuner
normal? peripheral parts. Yes Check the its Is input at pin line. 3 of IC402 line. normal?
TROUBLE SHOOTING TABLE (Continued)
13
Yes
Is the pins 2 No Check IC402 4 of IC402 and its at "H" and "L" peripheral parts. state?
Check LCD Yes Is the pins 65 No panel voltages and 66 of IC2001 No and waveform. Check the its at "L" state?
Yes
Check the its line. Is the pins 65 No and 66 of IC2001 at "H" and "L" state?
