Samsung LN40R71BAX - No Picture (Video_CVBS) Troubleshooting

4 Troubleshooting
4-11
4-2-6 No Picture (Video_CVBS)
Does the signal appear at
C617,C614?
Check CN201_NT or CN303_L.
Change the main PCB Ass'y.
Yes
Does the digital data appear
at output of R916_FBE ~
R921FBE?
Check IC602.
Change the main PCB Ass'y.
Yes
Check the video source and
check the connection of
video cable?
No
Input a video signal.
check the connected cable.
No
No
Yes
Does the digital data appear
at output of R1001_FBE ~
R1017_FBE?
Check IC 901_FBE
Change the main PCB Ass'y.
No
8
2
3
Yes
Check the LVDS cable?
Replace the LCD panel?
Please, call to Samsung Co. LTD
No