Samsung LN23R71BAX Service Manual page 36

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