Samsung LN26C350D1D Service Manual page 24

4-1-3. No video (HDMI - Digital signal)
Symptom Audio is normal but no picture is displayed on the screen.
-
Check the HDMI source
-
Major
Check the Saturn4(IC201)
-
checkpoints
This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.
-
Diagnostics
3
2
Caution Make sure to disconnect the power before working on the IP board.
Power indicator LED is off.
Lamp(Backlight) on, no video ?
Yes
Check the HDMI source and
check the connection of HDMI cable ?
Yes
Does the signal appear at
CN803 (Pin#12, #7 )(HDMI1)
CN801 (Pin#12, #7 )(HDMI2)
(HDMI RX_Clk, RX_Data)?
Yes
Does the digital data appear at
Pin #16,17 (LVDS Data clk)
of LVDS connector?
Yes
Check the LVDS cable?
Replace the LCD panel?
Check if the set is in
No
'Stand-by mode.'
No
Insert the HDMI signal properly.
Check CN803, CN801.
Check HDMI cable.
No
Change the Main Assy.
LC350_26": BN44-00368A
LC350_32" : BN41-00369A
Check IC201 (Saturn4).
No
Change the Main Assy.
LC350_26": BN44-00368A
LC350_32" : BN41-00369A
No
Please, Contact Tech support.
4. Troubleshooting
4-7