Samsung LN-4692D, Service Manual

Page: 28 / 148

4 Troubleshooting
4-4
4-3 No Video (HDMI - Digital Signal)
Check a HDMI source and
check the connection of
HDMI cable?
Input a HDMI signal.
Check a connected cable.
Yes
Does the signal appear at
R874,R876,R878,R879,R88
2,R883,R886-R891(Data),
R884-5,R892-3(Clk+/-) ?
Check JA802, JA804, HDMI cable.
Change a HDMI cable. Change a
main PCB ass'y
Yes
Does the digital data
appear at output of
R901-8 ?
Check IC805
Change a main PCB ass'y
Yes
Does the digital data
appear at output of R1034-
7, R1039 ?
Check IC901
Change a main PCB ass'y
Yes
Does the digital data
appear at output of R1010-
5, R1024-7 ?
Check IC1002
Change a main PCB ass'y
Yes
Check a LVDS cable ?
Replace a LCD panel ?
Yes
Power Indicator is off.
Lamp on, no video.
No
No
No
No
No
Please, Call to Samsung Co. LTD.
No
4
5
6
7