4 Troubleshooting
GG15AS/GG15AS(R)/GG15L*/GG15L*(R)/
GG15V*/GG15V*(R)/GG15E*/GG15E*(R)
4-3
CONFIDENTIAL
Check CN190.
No
Does the H-sync pulse
appear at Pin 43 of IC102?
Replace IC102 or
check its related circuit.
Check CN190.
No
Does the H-sync pulse
appear at Pin 34 of IC102?
Yes
Yes
No
4
Does the V-sync pulse
appear at Pin 44 of IC102?
2
Replace IC102 or
check its related circuit.
No
Yes
Does the V-sync pulse
appear at Pin 33 of IC102?
3
Yes
Replace IC103 or
check its related circuit.
No
Replace LCD Panel.
Yes
1
4-2-1 No Video [GG15AS(R)/GG15L*(R)/GG15V*(R)/GG15E*(R)]
Do the waveforms
appear at Pin 15
and 18 of CN101?
5
6