Samsung UN46D7000LFXZP, Service Manual

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4-6
4. Troubleshooting
No Video (Analog PC signal)
„
Genoa-P
N
Refer to the next page to check the location such a CN201 or IC201 SVC Manual mentioned.
Symptom
Audio is normal but no picture is displayed on the screen.
-
Major
checkpoints
Check the PC source
-
Check the Genoa-P
-
This may happen when the LVDS cable connecting the Main Board and the Panel is
-
disconnected.
Caution Make sure to disconnect the power before working on the PD board.
Diagnostics
Change the PC cable.
Change the main PCB assembly.
No
Yes
Does the digital data appear at
output of IC6001?
No
Yes
Check the PC source and check the
connection of DSUB?
Input an analog PC signal.
Check the connected cable.
No
Yes
Change the IC801 or the
main PCB assembly.
Check the LVDS cable?
Replace the LCD panel?
Please, contact Tech support.
No
Does the signal appear at
pin 1, 2, 3, 13, 14(R,G,B,H,V) of
CN401?
1
2
Caution Make sure to disconnect the power before working on the IP board.