9-6E
Display condition
Inverter abnormal
Replace
VCC5V normal
VCC2.5V normal
VGH normal
VGL normal
Y1 operate
Video_Y, Video_C
Is Q4, U9 OK?
Is U4 OK?
Is U1 OK?
Check HA4
Check Q4
Check D10, D7
Check D6, D8, D9
Replace Y1
Check R42, R43, C4, R44, R45, C9
Replace Q4, U9
Replace U4
Replace U1
Check RN1, R4, R5
R1, R2, R3 check
Replace
YES
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
Appear shadow from interference in black background
There is only bright (LCD B/D) abnormal
9-2. LCD TROUBLE SHOOTING GUIDE
www. xiaoyu163. com
QQ 376315150
9
9
2
8
9
4
2
9
8
TEL 13942296513
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299