No Video (Analog Pc Signal) - Samsung N64D Service Manual

4. Troubleshooting

4-1-2. No Video (Analog PC signal)

Symptom No video with PC source.
-
Check your source on the TV.
-
Major
Check your source content.
-
checkpoints
Check all connections.
-
Diagnostics
1
2
Caution Make sure to disconnect the power before working on the IP board.
4-4
40"
Power indicator LED is off.
Lamp(Backlight) on, no video
Yes
Check the PC source and
check the connection of D-SUB
Yes
Does the signal appear at
TP - 67,69,71,70,72
(R, G, B, H, V) of IC201?
Yes
Does the digital data appear at
Pin #16,17,34,35 (LVDS Data clk)
of LVDS connector?
Yes
Check the LVDS cable?
Replace the LCD panel?
52"
Check a set in the
No
'Stand-by mode' or 'DPMS mode'.
No
Input the analog
PC signal properly.
Check C903, PC cable.
No
Change the Main PCB
40" : BN94-02945D
52" : BN94-02945E
Check IC201 (Saturn4)
No
Change the Main PCB
40" : BN94-02945D
52" : BN94-02945E
No
Please, Contact Tech support.