Sony KDL-32R500C Service Manual page 47

3-6-2. Main Speaker No Sound (Audio)
Sound
Change Speaker Harness
Sound
KDL-32R500C, 505C, 507C, 40/48R510C, 550C, 555C, 557C
Sound
No connectivity for speaker
harness
No Sound
Speaker Impedance
≠ 6~8 Ω
Change Speaker
No Sound
No connectivity
of F4000
F4500 broken
START Main Speaker No Sound
Do a Factory Setting
No Sound
Check Speaker Harness
connectivity
No Sound
Check Speaker Impedance
No Sound
Check fuse connectivity
at F4000
F4000 OK
No Sound
Audio IC problem
IC4000 damage
Change B-Board
DONE
TROUBLE SHOOTING
B* Board Type
Size
PAN ASIA,AMERICA EUROPE
32"
BA BE
40"
BA BE
47