Sony KD-55X8 G Series Service Manual page 87

4.5 NO PICTURE: HDMI 1/2/3/4
No Picture
Check HDMIcable
OK
Check other
HDMI input
All Inputs NG
Check Picture by other TV set
which is same model
Target board & other
TV set both NG
Is using HDMI splitter ?
NO
Check Source equipment
by Reference TV set
Reference TV set
NG
Check the settings of
Source equipment, cable
①
Change HDMIcable
NG
Other Input is OK
Other TV set
OK
Change B-Board.
And inform the designer of it
Connect Source
equipment directly
YES
Go to
Change B-Board.
And inform the designer of it
Reference TV Set
OK
TV Business Division
Check the below point at
Connector side
・Check +5V line CL3610/3607/3613/3609
・Check HPD line CL3605/3606/3601/3608
+5V line OK
and HPD line NG
Spec:2.4~5.3V
①
Change B-Board.
And inform the designer of it
87
+5V line NG
Spec:4.7~5.3V
Part is OK
Check R3618,R3619,
R3620,R3718
Part is
NG/Missing
Replace the part and
check again
87