Samsung LE26S81BX Service Manual page 40

4-2-4 No Picture (Tuner_CVBS)
Power Indicator is off.
Lamp on, no picure.
Yes
Dose the signal appear
4
at R126?
Yes
Does the signal appear at
4
#8 of IC602?
Yes
Does the digital data appear
3
at output of
R1001_FBE~R1017_FBE?
Yes
Check a LVDS cable?
Replacea lcd panel?
No
Connect the RF cable and
check RF signal.
No
Check a B+ voltage (#6 of Tuner) 5V,
change a main PCB ass'y
No
Change a main PCB ass'y.
No
Check a IC500.
Change a main PCB ass'y.
No
Please, Call to Samsung Co. LTD.
4 Troubleshooting
4-7