Sony KDL-32R324D / KDL-40R354D / KLV-32R326D / KLV-40R356D Service Manual ▷ View online
3-4. Audio
3-4-2. Main Speaker No Sound
3-4-2. Main Speaker No Sound
29
Troubleshooting
Speaker Impedance
≠ 6~8 Ω
No Sound
Do a Factory Setting
START
Check Speaker Harness
connectivity
Check Speaker Impedance
Check fuse connectivity
at F4000
DONE
Change B*2-Board
Audio IC (IC4001) or Main
IC (IC5000) problem
No connectivity for
speaker harness
No Sound
No Sound
Sound
Sound
No connectivity
of F4000
No Sound
No Sound
Change Speaker
Harness
Change Speaker
F4000 broken,
Replace F4000
Sound
No Sound & F4000 OK
Sound
No Sound & F4000 OK
Debug NG B*2-Board
Refer “Normal Operation
Condition – B*2-Board”
F4000
IC4001
CN4001
IC5000
Audio Problem - Main Speaker No Sound (BA2 board Photo)
30
Audio Problem - Main Speaker No Sound (BA2 board Layout)
F4000
IC4001
CN4001
31
3-4. Audio
3-4-3. Headphone (HP) Out No Sound
3-4-3. Headphone (HP) Out No Sound
32
Troubleshooting
Do a Factory Setting
START
DONE
Change B*2-board
HP IC (IC4000) or
Main IC (IC5000) problem
Use another Headphone
Headphone problem
No Sound
Sound
Sound
Headphone (HP) Out No Sound
No Sound
No Sound & Headphone OK
Check AV Setup,
Headphone is selected
No Sound
Sound
Debug NG B*2-Board
Refer “HP IC Normal
Operation Condition –
B*2-Board”
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