3-5
ONE POINT REPAIR GUIDE
4-3. Service hint (Any picture / Remark)
4. NO AUDIO OUT IN OPTICAL FUNCTION
4-1. Solution
Check optical jack, audio DSP and audio output trace on main board.
4-2. How to troubleshoot (Countermeasure)
1) Please check JK301’s Pin1 (optical input signal).
2) Abnormal optical signal input condition
Ö
Check JK301 working status.
3) Normal optical signal input, abnormal IC301 operation conditions
Ö
Check IC301, IC303.
4) Normal IC301 operation conditions
Ö
Check no audio output sheet.
< Main board top view >
IC301
IC303
JK301
Содержание SoundPlate LAP340
Страница 14: ...1 13 8 After update display jig and main set will be power off ...
Страница 19: ...1 18 MEMO ...
Страница 21: ...2 2 MEMO ...
Страница 23: ...2 6 2 5 MEMO MEMO ...
Страница 25: ...2 8 MEMO ...
Страница 53: ...3 38 3 37 PRINTED CIRCUIT BOARD DIAGRAMS 1 MAIN P C BOARD TOP VIEW ...
Страница 55: ...3 42 3 41 2 LED P C BOARD 3 KEY P C BOARD TOP VIEW TOP VIEW BOTTOM VIEW BOTTOM VIEW ...