Sony KLV-22BX350 / KLV-26BX350 / KLV-32BX350 / KLV-40BX450 / KLV-46BX450 Service Manual ▷ View online
KLV-22, 26,32 BX350, 32BX35A, 40,46 BX450
RM-GA021
Troubleshooting
3-4. Audio Problem
3 4 2 HP O
N S
d
3-4-2. HP Out No Sound
HP Out No Sound
3-4-3. Analog Audio Input No Sound
Analog audio
input no sound
HP cable,
ok?
Change HP
cable
OK
NG
Audio RCA cable,
ok?
Change
RCA cable
NG
OK
R3073 ~ 3.3Vdc, ok?
(when insert HP) –(B * Board)
Detection
NG
NG
NG
OK
Audio analog source,
ok?
Change audio
source
NG
OK
RB5004 x_audio_mute2,
~ 3.3Vdc (B* board)
Main IC NG
OK
NG
Change B* Board
Segment
Size
B*
Board
G*
Board
Change B* Board
Board
Type
Board
Type
P-2F
22
BAQ
GD1
P-2F
26
BAQ
G9
P-2F
32
BAQ
G9
21
P-2F
40
BAQ
G10
P-2F
46
BAQ
G11
KLV-22, 26,32 BX350, 32BX35A, 40,46 BX450
RM-GA021
Troubleshooting
3-4. Audio Problem
3 4 4 HDMI A di N S
d
3-4-4. HDMI Audio No Sound
3-4-5. USB no sound
HDMI Audio
input no sound
USB Audio input
no sound
HDMI cable,
ok?
Change
HDMI cable
NG
OK
NG
USB thumbdrive,
ok?
Change USB
thumbdrive
NG
OK
HDMI source,
ok?
Change HDMI
source
NG
*HDMI sound
Change to
OK
NG
*USB audio
format, ok?
Change to
supported format
OK
NG
Change BAQ Board
OK
HDMI sound
format ok?
g
supported format
Change BAQ Board
OK
Change BAQ Board
* Please refer to IM for supported HDMI
audio format.
* Please refer to IM for supported USB
audio format.
22
KLV-22, 26,32 BX350, 32BX35A, 40,46 BX450
RM-GA021
Troubleshooting
3-4. Audio Problem
3 4 6 A
l
RF
d
3-4-6. Analog RF no sound
Analog RF input
no sound
RF cable,
ok?
Change RF
cable
UI setting, ok?
(TV System, AFT, Audio Filter)
Correct UI
NG
OK
NG
RF source,
ok?
OK
NG
OK
OK
Change RF
source/channel
Raster sound,
ok?
Refer “Speaker
No Sound”
Change B* Board
NG
OK
Segment
Size
B*
Board
G*
Board
Tuning,
ok?
Refer “Tuner
Problem”
NG
OK
Board
Type
Board
Type
P-2F
22
BAQ
GD1
P-2F
26
BAQ
G9
P-2F
32
BAQ
G9
23
P-2F
40
BAQ
G10
P-2F
46
BAQ
G11
KLV-22, 26,32 BX350, 32BX35A, 40,46 BX450
RM-GA021
Troubleshooting
3-4. Audio Problem
3 4
3 i
Bli ki
f
A di E
3-4-7. 3-times Blinking for Audio Error
TV 3x blinking
OK
B
Remove spk
connector (CN4000), ok?
Spk Impedance
7~8ohm, ok?
High Z
(>100Kohm)
OK
L4000, L4001, L4002 &
L4003 impedance to ground.
(B* Board)
Low Z
NG
OK
(B* Board)-
F4000
Ok?
Change spk
wire
Change
main spk
NG
Low Z
(<100Kohm)
OK
NG
Amp IC NG
Output short to
GND / Amp IC NG
High Z
GND / Amp IC NG
CN6001 pin17,19, 12.5V ok?
(B* Board)
Power Board NG
(G*).
NG
OK
Segment
Size
B*
Board
G*
Board
Check impedance
CN6001 pin19 <-> C4023 (+ve)
(B* Board)
High Z
(>0ohm)
Low Z
(
)
Board
Type
Board
Type
P-2F
22
BAQ
GD1
P-2F
26
BAQ
G9
P-2F
32
BAQ
G9
24
Low Z
(~0ohm)
B
Change B* Board
P-2F
40
BAQ
G10
P-2F
46
BAQ
G11
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