3-9
Copyright © 2017 - 2019 LG Electronics Inc. All rights reserved.
Only for training and service purposes.
ONE POINT REPAIR GUIDE
NO SOUND
2-2. OPTICAL
2-2-1. Solution
Replace MAIN board.
2-2-2. How to troubleshoot (Countermeasure)
1) Please check 3.3 VA at R209.
2) If 3.3 VA is ok, please check OPT_IN signal (C208) when OPTICAL mode.
3) If signal is abnormal, replace MAIN board.
2-2-3. Service hint (Any picture / Remark)
< MAIN board top view >
R209
R209
C208
C208
Содержание SJ4Y
Страница 17: ...1 16 Copyright 2017 2019 LG Electronics Inc All rights reserved Only for training and service purposes ...
Страница 31: ...2 16 Copyright 2017 2019 LG Electronics Inc All rights reserved Only for training and service purposes ...
Страница 53: ...3 22 Copyright 2017 2019 LG Electronics Inc All rights reserved Only for training and service purposes ...
Страница 57: ...Copyright 2017 2019 LG Electronics Inc All rights reserved Only for training and service purposes 3 30 3 29 ...
Страница 69: ...4 12 Copyright 2017 2019 LG Electronics Inc All rights reserved Only for training and service purposes ...
Страница 79: ...5 8 Copyright 2017 2019 LG Electronics Inc All rights reserved Only for training and service purposes ...