4 Troubleshooting
4-7
4-2-4 No Picture (Tuner_CVBS)
Does the signal appear at
C611?
Check a B+ voltage (#6 of Tuner) 5V,
change a main PCB ass'y
Yes
Does the digital data appear
at output of R916_FBE ~
R921FBE?
Check IC601.
Change the main PCB Ass'y.
Yes
Does the digital data appearat
output of R1001_FBE ~
R1017_FBE?
Check IC 901_FBE
Change the main PCB Ass'y.
Yes
Check the RF source and check
the connection of RF cable?
No
Input a RF signal.
check the connected cable.
No
No
No
Yes
Check the LVDS cable?
Replace the LCD panel?
Please, call to Samsung Co. LTD
No
2
6
3
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