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4-2-4 No Picture (Tuner_CVBS)
Power Indicator is off.
Lamp on, no picure.
Yes
Dose the signal appear
3
at R939?
Yes
Does the signal appear at
4
#M4 of IC502-1?
Yes
Check a LVDS cable?
Replace a lcd panel?
No
Connect the RF cable and
check RF signal.
No
Check a B+ voltage (#7 of Tuner) 5V,
change a main PCB ass'y
No
Change a main PCB ass'y.
No
Please, Call to Samsung Co. LTD.
4 Troubleshooting
4-7
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