Read Sony KLV-21SG2 Service Manual online
KLV-21SG2 (AEP) 3-2
24
25
AUDIO CONTROL
IC7001
7
1
6
5
2
3
3
5
13
14
IC7011
AP
IN1
IN2
OUT1
OUT2
AUDIO L
AUDIO R
MUTE
Q7009
IC7007
AUDIO AMP
8
1
5
6
5
7
4
3
2
1
4
3
2
1
SP L-
SP L+
SP R-
SP R+
CN7002
L
R
SPEAKER
AUDIO R
AUDIO L
IC7004
HP AMP
3
2
1
HP-L
HP-R
NC
CN7501
4
HP-GND
H2(1/2)
(HEADPHONE)
J7601
HEADPHONE
AUDIO R
AUDIO L
10
L OUT
R OUT
HP MUTE
Q7006
L IN
R IN
SP MUTE
1
3
2
7
5
6
1
3
2
Q7007
9V
IC7004
FILTER W
FILTER W
IC7005
CN7001
A-2
(AV SW,AUDIO AMP,POWER)
Q7015,7005
MUTE
Q7008
HP_MUTE
3
Q7016
Q7017
7
5
6
1
3
2
IC7009
MIX
27
28
MONO_IN
IF_IN1
OUT1
OUT2
SP_OUT_R
SP_OUT_L
HP_OUT_R
HP_OUT_L
36
37
SC1_OUT_R
SC1_OUT_L
R_TVAU
L_TVAU
10
1
HP_R
HP_L
1
3
2
7
5
6
IC7010
HP AMP
VAR_L
VAR_R
6
MUTE
6
4
3
1
3
2
1
MUTE
A_OUT_R
A_OUT_L
CN9301
4
F_RESET
CN9404
U2
(AUDIO OUT)
J9301
R
L
R/D/D/D
L/G/S/I
Q9302
Q9301
S9301
MUTE
MUTE
VAR_L
VAR_R
Q7013
AU16.5V
MUTE SW
MUTE
MUTE
MUTE
Q7014
MUTE
D7009
D9406
4
9
5
D7007
67
60
POWER_ON_RESET
SC2_L_IN
53
21
SC2_R_IN
54
56
57
SC1_L_IN
SC1_R_IN
2
3
SCL
SDA
QSS AMP
Q7006
7
FM/AM
QSS
L_MS
R_MS
L_AVSW
R_AVSW
2
3
SCL_P2
SDA_P2
ACTIVE FILTER
11
10
SCL
SDA
SCL_B
SDA_B
AUDIO L
AUDIO R
AUDIO L/R
14
13
12
11
10
9
8
7
6
5
4
3
2
1
CN8401
UNREG16.5V
UNREG16.5V
GND
GND
UNREG6V
UNREG6V
UNREG6V
GND
GND
GND
UNREG33V
GND
REG16.5V
GND
4
3
2
1
CN8402
STBY5V
GND
POWER-ON
GND
4
3
2
1
CN8405
REG16.5V
REG16.5V
GND
GND
IC8401
CONVERTER
24
VCC
STBY1
STBY2
OUT1_D
REG5V_IN
LIM
LL1
OUT1_u
LH2
OUT2_D
LL2
OUT2_U
INV2
FB2
POWER_GOOD
33V
AU16.5V
IC8403
5V REG
VCC
OUT
Q8402
SW
G
S1
S2
S3
D1
D2
D3
D4
27
4
1
2
3
5
6
7
8
Q8401
SW
G
S1
S2
S3
D1
D2
D3
D4
4
1
2
3
5
6
7
8
Q8403
SW
G
S1
S2
S3
D1
D2
D3
D4
4
1
2
3
5
6
7
8
Q8405
SW
G
S1
S2
S3
D1
D2
D3
D4
1
2
3
4
5
6
7
8
L8402
IC8402
9V REG
VCC
OUT
1
2
21
30
28
29
16
19
18
17
15
14
12
Q8406
L8601
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
CN8403
D3.3V
D3.3V
D3.3V
D3.3V
GND
GND
GND
DSY
9V
GND
PANEL12V
PANEL12V
GND
GND
STBY5V
STBY5V
GND
GND
3.3V_ALERT
5V_ALERT
DCIN_ALERT
GND
DIMMER
BACKLIGHT
PANEL_DET
5
4
3
2
1
CN8404
DIMMER
BACKLIGHT
PANEL_DET
GND
D5V
D9414
D8413
+9V
+12V
PS8401
9
10
C
TO B-1 BOARD
CN1003
TO G BOARD
CN6351
D
TO G2 BOARD
CN66302
TO D2 BOARD
CN8210
D3.3V
REG16.5V
16.5V
Q8404
POWER1
POWER2
POWER4
8
H
TO D2 BOARD
CN8201
Click on the first or last page to see other KLV-21SG2 service manuals if exist.