Sony KD-43X7 G Series Service Manual page 107

2.8.2 Troubleshooting Detail Audio Problem
2.8.2.4 Analog RF No Sound
(applicable for PAA, PAD, CHN, PH,
(TV System, AFT, Audio Filter)
UI OK, No Sound
START
No Sound
Do a Factory Setting &
complete the RF tuning
No Sound
RF cable, OK?
OK
RF source, OK?
OK
Raster sound, OK?
for other region skip this)
OK
Tuning, OK?
OK
UI setting, OK?
OK
Change B-board
DONE
NG
Change RF cable
No Sound
NG
Change RF source/channel
No Sound
NG
Refer "Main Speaker No Sound"
NG
Refer "Tuner Problem"
NG
Correct UI setting
No Sound
Sound
Sound
Sound
Sound
107
SYS SET