Sony BRAVIA KDL-55W900A, Service Manual, Page: 195 / 241

RB1G
CHASSIS
W900A/904A/905A
Troubleshooting
3-5. No Picture
3-5-15. NO PICTURE: MHL (BKE/ BKX/ BKJ ) (Not applicable for this model)
No Picture
Size B* Board Type G* Board
Type
OTHERS JP
40” BA2-S BA2-W G1A
Note:
(AYU2) – IC9000
(Brownie) IC9001
No Picture
Check 57pin
f IC5009
High
Check CBUS_HPD4 line
and TMDS(D0+/D0-) lines
Only TMDS lines
46” BA2-S BA2-W G1A
55” BA2-S BA2-W G1B
(Brownie)- IC9001
of IC5009
Low
Check Source equipment
by the IC5009 side
CBUS HPD4
Replace
RB5020
are NG
All lines
are OK
by Reference TV set
(For example, Samsung TV(UN46ES7000)
, Toshiba TV(42WL863))
or VA-1836
Replace
CBUS_HPD4
line is NG
RB5020
Low
OK
Check DSCL 4
Check RB5019,
NG
or VA 1836
IC5009
Check DSCL_4
D5001 and D5002
NG OK
High
Check HDMI picture
in this input
Replace
NG part
Change
MHL cable
Check +5.0V MHL
OK
NG
Check “NO PICTURE
Check the settings of
Source equipment
Inform the designer
of it
_
and STBY_+3.3V
– HDMI” flow
195
S q p
of it