Sony KD-55X7 E Series - Analog Audio Input no Sound

3.10 .2.3 Analog Audio Input No Sound
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START
DONE
Change B-board
Main IC (IC5000) problem
Use another RCA cable RCA cable problem
No Sound
Sound
Sound
Check Analog Input Source
& use another input source
Analog Input Source problem
Refer
Audio Problem
Speaker No Sound
& HP No Sound
Sound
Check correct
Source mode is selected
No Sound
No Sound
No Sound & RCA cable OK
No Sound & Analog Input Source OK
Sound & Speaker / Headphone OK
Sound
Sound
No Sound
Do a Factory Setting &
set to desire channel with sound
Check Speaker & Headphone
Using other input mode
3.10 .2 Troubleshooting detail audio problem