![LG DVP7772 Скачать руководство пользователя страница 16](http://html.mh-extra.com/html/lg/dvp7772/dvp7772_manual_211572016.webp)
3-16
ELECTRICAL TROUBLE SHOOTING GUIDE
1. Power (DC-DC Converter) Circuit
A.
NO POWER ON
by ADAPTOR
NO POWER ON
by BATTERY
Is ADAPTOR
OUT 9.8V?
Is BATT ERY
OK?
Is F101 OK?
Is LF101 OK?
Replace F101
YES
Is
Is F102 OK?
D105 OK?
Replace D105
Replace ADAPTOR
NO +1.8V
Is Q102 OK?
NO -5V
NO + 5V
NO +3.3V
NO LCD POWER
Replace
Q102
Is E+5V OK?
Replace
Q103
Replace IC104
Replace IC103
Replace L437
Is Q104 OK?
Is Q104 OK?
Replace
Q104
Replace
Q104
Replace IC108
Is Q105 OK?
Replac F102
Is Q102 OK?
Replace Q102
Replace BATTERY
Replace
Q105
Is Q105 OK?
Replace
Q105
Replace LF101
NO
NO
YES
Содержание DVP7772
Страница 28: ...3 7 3 8 LCD CIRCUIT DIAGRAM LCD1 CIRCUIT DIAGRAM ...
Страница 29: ...3 9 3 10 LCD2 CIRCUIT DIAGRAM ...
Страница 30: ...3 11 3 12 LCD3 CIRCUIT DIAGRAM SR14121A ...
Страница 32: ...3 14 3 15 LCD P C BOARD LOCATION GUIDE LOCATION GUIDE ...
Страница 33: ......
Страница 50: ...3 60 3 61 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD LOCATION GUIDE LOCATION GUIDE ...
Страница 51: ...2 KEY P C BOARD LOCATION GUIDE LOCATION GUIDE 3 62 3 63 ...