No Picture (Tuner Dtv Ts) - Samsung LN-T325H Service Manual

4 Troubleshooting

4-5 No Picture (Tuner DTV TS)

Power Indicator is off.
Lamp on, no picture.
Yes
Check the RF source and
check the connection of RF
cable?
Yes
Does the digital data appear
8
at #10,11 of TU500?
Yes
Does the digital data appear at
output of RA200~5,
R288, R290, R294?
Yes
Does the digital data appear
at output of R1325,1327~30,
1332, 1335, 1337, 1339,
1341, 1343, 1346?
Yes
Check a LVDS cable?
Replace a LCD panel?
4-8
No
Input an RF signal.
Check the connected cable.
No
Check TU500.
Change the main PCB ASS`Y or tuner.
Check IC202
No
Change the main PCB ass'y
Check IC1301
No
Change the main PCB ass'y
No
Please, call to Samsung Co. LTD