Sony KD-55A9F - Page 45

(Supplementary
information)
3.3 No Sound Power Off Check
45
Power Off Check
From 2.2
Confirm the speaker
harness
Cut or shorted
to the chassis ?
Replace Speaker Harness
Yes
Power Off Check
From 3.0
Replace KJ2 PWB
No
Yes
No
Yes
No
Yes
(1) KJ2-PWB
Fuse
(F9000, F9001, F9002, F9003)
broken?
(2) KJ2-PWB
PVDD-GND
(C9025, C9046, C9067, C9088)
short ?
(3) KJ2-PWB
LDO out(C806) short ?
Replace
Speaker
Measure the Speaker
impedance by multi-meter
Less than 3Ω ?
Yes
NO
NO
SYSSET
2018/09/1904:47:37(GMT+09:00)