Sony KD-43X7 G Series Service Manual page 106

2.8.2 Troubleshooting Detail Audio Problem
2.8.2.3 Analog Audio Input No Sound
No Sound & RCA cable OK
No Sound & Analog Input Source OK
Sound & Speaker / Headphone OK
START
No Sound
Do a Factory Setting &
set to desire channel with sound
No Sound
Check correct
Source mode is selected
No Sound
Use another RCA cable
Check Analog Input Source
& use another input source
Check Speaker & Headphone
Using other input mode
Main IC (IC5000) problem
Change B-board
DONE
RCA cable
problem
Analog Input Source problem
No Sound
Refer
Sound
Audio Problem
Speaker No Sound
& HP No Sound
Sound
Sound
Sound
Sound
106
SYS SET