Sony KD-49X7 D Series Service Manual page 135

4.5 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.
And inform the designer of it
Reference TV Set OK
TV Business Division
Check the below point at
Connector side
・Check +5V line
・Check HPD line
・Check DDC lines
・Check TMDS lines
+5V line is OK
Only +5V line
and HPD line
is NG
is NG
Spec:4.7~5.3V
Spec:2.4~5.3V
Replace
R3645
*(IC3602,R3670,R3671,C3628
Replace IC1000 (SOC).
And inform the designer of it
135
All lines
are NG
Replace
CN3602
Only TMDS lines
are NG
Replace
Only DDC lines
RB3617,RB3618,
are NG
RB3609,RB3610
Replace
NG
RB3602
and
R3662,R3663
or
Only BM2 board)
NG
NG
135