There sync. and data output are
R260, R261, R211, R213, and RA201 ~ RA212?
5 Troubleshooting
GH17LS/GH17ES 5-3
5-2 No Video
Check signal cable connection and power.
Check IC102 and related circuit.
Yes
No
There proper signal input are
Pin 66, 65, 64, and 11 of IC102?
Yes
Check the LVDS_EN at
R118 is high or not.
Normal state is high.
Does the output signal appear at
R121 ~ R130 R132, R135, R136, and R138 ~ R144?
Yes
No
Check the Power
and related circuit.
No
Please check the Inverter
and related circuit.
No
There are DC 5V at Pin 1, 2 and 3 of CN102?
Yes
There are DC 12V, DC5V and DC 3.3V at
Pin 10, 11, 12 ; Pin 7 and Pin 4 of CN104?
3 4 5
7
Does the X101 and X201 oscillate properly?
Yes
There R, G, B input are at R103, R107 and R108?
Replace that or
check related circuit.
No
Check input part.
No
Please check the power related
IC202 and output part.
No
Yes
12
6
3 4
56