Sony KDL-32R324D / KDL-40R354D / KLV-32R326D / KLV-40R356D Service Manual ▷ View online
Audio Problem - Headphone (HP) Out No Sound (BA2 board Photo)
IC5000
IC4000
J4000
33
IC5000
IC4000
J4000
Audio Problem - Headphone (HP) Out No Sound (BA2 board Layout)
1
14
3
12
O3
O12
V1
I1
I14
5
DET
R4032
34
Label
Name
Normal Operation (Approx.)
Comment if abnormal operation
Voltage
Frequency
V1
V+
3.3V
-
Check connection path between IC6006 to IC4000; IC6006 problem
DET
HP_DET
Headphone Insert = 3.3V
Headphone No Insert = 0V
Check connection path between J4000 to R4032
Headphone Insert = 3.3V, Headphone No Insert = Short to Ground
1
+INR
Depend on input source signal,
Have waveform if have audio
Check connection path between IC5000 to IC4000; IC5000 or IC4000 problem
I1
+INR_Soc
Check connection path between IC5000 to IC4000; IC5000 or IC4000 problem
3
OUTR
Depend on input source signal,
Have waveform if have audio
Check connection path between IC4000 to J4000; IC4000 or J4000 problem
O3
OUTR_J
Check connection path between IC4000 to J4000; IC4000 or J4000 problem
5
MUTE
3.3V
-
Check connection path between IC6006 to IC4000; IC4000 or IC6006 problem
12
OUTL
Depend on input source signal,
Have waveform if have audio
Check connection path between IC4000 to J4000; IC4000 or J4000 problem
O12
OUTL_J
Check connection path between IC4000 to J4000; IC4000 or J4000 problem
14
+INL
Depend on input source signal,
Have waveform if have audio
Check connection path between IC5000 to IC4000; IC5000 or IC4000 problem
I14
+INL_Soc
Check connection path between IC5000 to IC4000; IC5000 or IC4000 problem
Audio Problem - Headphone (HP) Out No Sound (B*2 board)- reference label
HP IC Normal Operation Condition - B*2-Board
35
3-4. Audio
36
3-4-4. Analog Audio Input No Sound
Troubleshooting
Do a Factory Setting
START
DONE
Change B*2-board
Main IC (IC5000) or
Audio IC (IC4001) or
HP IC (IC4000) problem
Use another RCA cable
RCA cable problem
No Sound
Sound
Sound
Check Analog Input Source
& use another input source
Analog Input Source
problem
Check Speaker & Headphone
Refer
Audio Problem
Main 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
No Sound & Speaker / Headphone OK
Sound
Sound
Sound
No Sound
Debug NG B*2-Board
Refer “Audio IC or HP
IC Normal Operation
Condition – B*2-Board”
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