Sony KD-55A9F Service Manual page 46

3.4 No Sound Power On Check
Power On Check
From 2.2/3.1
*Power_AU is same as PVDD
(4) POWER_AU* check
Yes
POWER_AU is supplied to
KJ2 for a moment
No
before LED 3x brinking?
No
Yes
Replace G-PWB
Finish
OK ?
No
Return to 2.2
46
SYS SET