No Video (Video Av) - Samsung UE40F6320AW Service Manual

4. Troubleshooting

4-2-5. No Video (Video AV)

Note
Refer to the next page to check the location such a CN201 or IC201 SVC Manual mentioned.
Symptom
Major
checkpoints
Diagnostics
Caution
4-16
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• Audio is normal but no picture is displayed on the screen.
• Check the Video CVBS source.
• This may happen when the LVDS cable connecting the Main Board and the Panel is
disconnected.
Power indicator LED is off.
Lamp(Backlight) on, no video ?
Yes
Check the video source and check the
connection of video cable?
Yes
Check the LVDS clk signal at output of
Main board. (TX)
2
TX2_CLK : ODD_TXCLK_DN/DP
-
TX4_CLK : EVEN_TXCLK_DN/DP
-
Yes
Check the LVDS cable?
Replace the T CON / LCD panel?
Make sure to disconnect the power before working on the IP Board.
manuals search engine
No Check a set in the 'Stand-by mode'.
No Input the video source properly.
Check IC1001(X12)
No
Change the Main Ass'y.
No Please, Contact tech support.