Sony KD-43X7 F Series Service Manual page 103

2018/05/04 04:12:02 (GMT+09:00)
3.16.2 Troubleshooting Detail Audio Problem
3.16.2.1 Main Speaker No Sound
START
No Sound
Do a Factory Setting &
set to desire channel with sound
No Sound
Check Speaker Harness
Connectivity
No Sound
Check Main Speaker Impedance
No Sound
Check fuse connectivity
at F3101
No Sound & F3101 OK
Check I2S lines short to GND?
(BCLK, LRCLK, SDATA0)
No Sound & I2S lines no short to GND
No connectivity for
speaker harness
Change Speaker
Harness
No Sound
Speaker Impedance
≠ 6~8 Ω
Change Main
Speaker
No Sound
No connectivity
of F3101
F3101 broken,
Replace F3101
No Sound & F3101 OK
Any I2S line
short to GND
Main IC (IC5000) or
Audio IC (IC3101) problem
Change B-board
DONE
103
Sound
Sound
Sound
Sound
(Supplementary
103
information)
SYS SET