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4. Troubleshooting
4-1-3. No Video (Analog PC signal)
Symptom
Audio is normal but no picture is displayed on the screen.
-
Check the PC source
-
Major
Check the Arsenal, Check the Chelsea.
-
checkpoints
This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.
-
1
2
Diagnostics
Caution
Make sure to disconnect the power before working on the IP board.
4-4
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 BD1106, BD1107,
BD1108, BD1104, BD1105
(R,G,B,H,V)?
Yes
Does the digital data appear at TP-260_
TXCLK+, 260_TXCLK- ?
Yes
Check the LVDS cable?
Check the T-Con B'd?
Replace the LCD panel?
No
Check a set in the 'Stand-by mode'
or 'DPMS mode'.
No
Input the analog PC signal properly.
Check CN1102 PC Cable.
No
Change the Main Assy.
Check IC1102(SX1)
No
Change the Main Assy.
No
Please, Contact Tech support.
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