SHARP LC-20C2M
Instrukcja Serwisowa

No picture

No TV and VIDEO 1 and No TV output VIDEO 2 output

picture 1 VIDEO 2 No S-VIDEO at all output

Check all the settings microprocessor's adjust process menu.

Is in/output of Check the its pins (6), (7) and line. IC801 normal? (9) of TU3201 normal? input at pin Yes No IC1201 IC801, Is the pins (2) Check IC402 and (4) of IC402 at "L" state? (73) of IC801 AV1 line and its normal? peripheral parts. normal? peripheral parts. and its (1) of IC402

Is voltages at No IC801 Check IC402 Is input at pin Is in/output of Check the IC402 normal? power line.

peripheral parts. normal?

Yes Yes

Is in/output of

Is output at pin No Check tuner (19) of TU3201 and its

IC1201 normal?

Yes No Yes
Is input at pin No Check the its panel voltages and (66) of IC2001 and waveform. at "L" state? line. (3) of IC402 normal?

Check LCD Is the pins (65) Yes Check the its line.

TROUBLE SHOOTING TABLE (Continued)

13
Yes
Check IC402 Yes Is the pins (2) its and (4) of IC402 peripheral parts. at "H" and "L" state?

No
Check the its and (66) of line. IC2001 at "H" SC2001, SY-line, SC-line and their Is pins (65) Yes pin Is input at pins No Check the (5) IC402 (71) and (72) of IC801 normal? and "L" state? peripheral parts.

Yes No (4) Is the pin (66) of
IC402 IC2001 in the "H" sate?

Yes
Check IC402 and their peripheral parts. Check the its line.

LC-20C2H LC-20C2M