No Picture: Hdmi4 - Sony KDL-43W7 C Series Service Manual

Troubleshooting

3-4-8. NO PICTURE: HDMI4

No Picture
Check other
HDMI input
All Inputs
are NG
Check Picture by other TV set
which is same model
Target board &
other TV set
both NG
Is Distributor used ?
NO
Check Source equipment
by Reference TV set
(For example, RB1)
Reference TV
set NG
Check the settings of
Source equipment
Other Input is OK
Other TV set
OK
Replace
IC1000
Connect Source
YES equipment directly
Change B* Board.
Reference
TV Set OK
Check the below point at
Connector side
・Check +5V line
・Check HPD line
・Check DDC lines
・Check TMDS lines
Only +5V line
is NG
+5V line is OK
Spec:4.7~5.3V
and HPD line
Replace is NG
Spec:2.4~5.3V
R5614
Replace IC1000 (SoC).
All
lines
are
Replace
NG
CN5602
Only TMDS
lines
are NG
Only DDC
lines
Replace
are NG
RB5607,RB5608,
RB5612,RB5613
Replace
R5607,R5608
NG NG
62
NG