Sony BRAVIA KDL-55W900A, Service Manual, Page: 187 / 241

RB1G
CHASSIS
W900A/904A/905A
Troubleshooting
3-5. No Picture
3-5-13. NO PICTURE: HDMI (BKE/X/J Board) (Not applicable for this model)
Size B* Board Type G* Board
Type
OTHERS JP
40” BA2-S BA2-W G1A
Note:
(AYU2) – IC9000
(Brownie) IC9001
3 5 3 O C U ( / /J oa d) ( ot app cab e o t s ode )
Check PWR pin of IC5009
pin9, pin10, pin19,
Pin20 pin 49 pin 51 pin67 pin77
46” BA2-S BA2-W G1A
55” BA2-S BA2-W G1B
(Brownie)- IC9001
Check R5085, R5090,
Replace NG
Pin20, pin 49, pin 51, pin67, pin77,
Pin78, pin87, pin88
All Pi OK?
YES
Check Reset pin of IC5009.
High
Replace
IC5009
Replace
IC9000
RB5012 and RB5013
Replace
NG part
NG
OK
Only one of the pins
is NG?
All Pin OK?
YES
NO
Pin61.
Low
Replace
Q5010
IC5009
IC9000
is NG?
NO
Q5010
Only 51pin
is NG?
Replace
R5052
YES
R5052
NO
NO
YES
187
I2C wave is output?
Pin 62, Pin63
NO
Replace
IC5009
YES
Replace
IC9000