Sony KD-55A9G Service Manual page 71

2019/04/19 01:55:00 (GMT+09:00)
4.5 NO PICTURE: HDMI1/2/3/4
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
(For example, RB1)
Reference TV set
NG
Check the settings of
Source equipment,cable
①
Change HDMIcable
NG
Other Input is OK
Other TV set
OK
Check IC1000
Connect Source
equipment directly
YES
Change B-Board.
And inform the designer of it
Reference TV Set
OK
TV Business Division
・Check +5V line CL4060/4061/4062/4063
・Check HPD line CL3803/3805/3808/3810
+5V line NG
Spec:4.7~5.3V
Check R3803
①
Go to
Check IC1000
And inform the designer of it.
Check CL
+5V line:CL4060/4061/4062/4063
HPD line:CL4042/4043/4044/4045
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Check the below point at
Connector side
+5V line OK
and HPD line NG
Spec:2.4~5.3V
+5V line :CL4060/4061/4062/4063
HPD line :CL3803/3805/3808/3810
71
SYS SET