DOWNLOAD Sony KV-21FK120 Service Manual ↓ Size: 5.9 MB | Pages: 61 in PDF or view online for FREE

Model
KV-21FK120
Pages
61
Size
5.9 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kv-21fk120.pdf
Date
PREV: Sony KD-32XS945 Service Manual

Sony KV-21FK120 Service Manual ▷ View online

KV-21FK120
42
KV-21FK120
1 
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2        | 
3 
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4 
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14 
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A
—
B
—
C
—
D
—
E
—
F
—
G
—
H
KR BOARD SCHEMATIC DIAGRAM
1
2
3
4
5
6
1
2
3
4
5
6
7
8
I
O
G
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
1
2
3
4
1
2
3
4
5
C4402
C4424
C4433
C4444
C4445
CN4401
CN4402
D4404
R4403
R4407
R4411
R4414
R4419
R4421
R4422
R4436
JR4401
C4419
IC4401
IC4406
Q4401
C4425
C4426
C4427
C4421
C4422
C4420
C4418
C4417
C4416
R4438
R4442
R4412
C4428
C4429
C4404
C4407
C4412
R4406
C4411
R4405
R4404
C4413
C4414
C4415
C4432
C4441
C4437
C4436
C4440
R4441
C4448
R4439
R4440
C4450
IC4405
R4443
R4415
R4435
C4443
C4442
R4420
CN4403
R4409
R4408
JR4403
C4403
C4405
C4408
C4410
C4423
C4431
C4449
C4451
R4453
R4454
C4455
C4454
JR4452
C4409
R4455
R4456
C4456
C4457
D4401
D4402
D4403
JR4450
JR4451
JR4453
JR4454
JR4455
R4410
R4416
R4417
R4418
R4427
R4428
R4429
R4430
R4445
R4458
R4459
R4460
IC4402
IC4403
L4402
L4401
4.7
1.0
2200p
10
50V
0.1
:CHIP
5P
4P
MA111-TX
100
:CHIP
22k
:CHIP
27k
:CHIP
10k
:CHIP
100
:CHIP
100k
:CHIP
100k
:CHIP
100
:CHIP
0
:CHIP
0.068
M65845AFP
AUDIO PROCCESSOR
NJM4558E(TE2)
AF OP AMP
2SA1235TP-1EP
AUDIO SW
1.0
1.0
1.0
1000p
50V
1.0
0.047
50V
0.1
:CHIP
0.1
:CHIP
100
47k
:CHIP
100
:CHIP
56k
:CHIP
0.01
0.22
16V
1.0
4.7
0.047
50V
22k
:CHIP
1000p
50V
:CHIP
22k
:CHIP
22k
:CHIP
0.068
0.1
:CHIP
47
0.1
:CHIP
1.0
2.2
2.2
1.0
10k
:CHIP
1.0
10k
:CHIP
10k
:CHIP
10000p
ICBA05FP-E2
5V REG
10
100
:CHIP
100
:CHIP
0.1
:CHIP
10
50V
100
:CHIP
6P
22k
:CHIP
22k
:CHIP
0
0.1
0.1
0.1
0.1
0.1
470
470
470
10k
:CHIP
10k
0
1.0
10k
:CHIP
10k
RD9-1EW-T1
RD9.1EW-T1
MTZJ-T-77-5.6B
0
0
0
0
0
39k :CHIP
3.3k
:CHIP
22k
3.3k
:CHIP
82k
10k
10k
82k
22k
4.7k
4.7k
12k
:CHIP
MAX5478EUD
DIGITAL
POTENTIOMETER
MAX5478EUD
DIGITAL
POTENTIOMETER
R-IN
LEFT
RIGHT
L-IN
L-IN
R-IN
R-
OU
T
L-
OU
T
+5
V
CC
+9VCC
+5VCC
A
O
U
T
A
I
N
+
A
I
N
-
G
N
D
B
I
N
+
B
I
N
-
B
O
U
T
V
C
C
RT
LT
GND
L
R
MICIN
KR BOARD
MIC 1
MIC 2
GND
MIC DET
PON
GND
SCL
SDA
9V
GND
SDA
VCFIL
ALC1
VALC
MIC1NFIN
AUDSW2
MIC1OUT
AUDSW1
MIC1VOLIN
MIC2IN
ALC2
MIC2NFIN
MIC2OUT
MIC2VOLIN
MICOUT
LPF1IN
LPF1OUT
ADITIN
ADINTOUT
ADCONT
REF
GND
VCC
DACONT
DAINTIN
DAINTOUT
LPF2IN
LPF2OUT
VOLIN
ECHO
RLINEIN
LLINEIN
RLINEOUT
LLINEOUT
OUT
MICECHO
MICSW
CONT
CLOCK
HA
WA
LA
HB
WB
LB
WP
VDD
SCL
A0
A1
A2
GND
SDA
HA
WA
LA
HB
WB
LB
WP
VDD
SCL
A0
A1
A2
GND
TO-CN402 A BOARD
RT
LT
L
R
MIC 2
MIC 1
TO-CN2402 HK BOARD
2.6
2.6
2.6
2.6
2.6
2.6
2.6
2.6
2.6
2.6
2.6
2.6
2.6
2.6
2.6
2.6
0.6
2.6
2.6
2.6
2.6
2.6
2.6
2.6
2.6
2.6
2.6
1.7
0.0
1.1
0.0
0.0
4.4
4
.
4
4
.
4
4
.
4
4
.
4
4.4
0.0
0.0
4.7
4.7
4.7
4.7
0.0
0.0
0.0
0.0
5.0
5.0
AUDIO PRCESSOR
0.0
MIC INPUTS
TO-CN403 A BOARD
9-965-980-01<BA6>KR
+9V
+5V
KV-21FK120
43
KV-21FK120
R910
R
1
7
8
9
Q
9
0
1
R909
Q902
RV1701
J
1
7
5
1
L1751
RV1750
I C1707
I C1751
CN1753
CN1755
R
1
7
8
4
R1761
R1762
C1774
C1778
C911
C
1
7
5
1
C1775
C912
C1755
C
1
7
7
7
C901
C903
C908
C
1
7
5
2
C1753
C
1
7
5
4
C
9
0
2
C904
C906
C
9
0
5
C910
C909
D1754
D1755
D1756
D
1
7
5
8
D
9
0
3
D901
D902
R
1
7
6
3
R
1
7
6
4
R
1
7
6
5
R
1
7
6
8
R1788
R
9
0
4
R906
R
1
7
5
9
R1758
R1757
R1756
R1770
R1760
R902
R
9
0
7
R
9
0
8
R901
R903
R905
L901
R1767
Q
7
8
2
Q1771
Q
7
8
3
Q
9
0
6
CN903
CN1752
C
7
8
2
Q791
R
7
9
5
R
7
9
2
Q
7
6
3
Q
7
6
2
R
7
7
0
R
7
7
5
R
7
7
3
R
7
7
2
R
7
8
2
R
7
8
3
R
7
8
5
CN1707
R
1
7
8
2
Q
1
7
7
2
R
9
1
1
R
9
1
8
R
9
1
9
R
9
1
3
R
9
1
5
R9
2
0
Q
9
0
4
R
9
1
7
R
9
1
6
R
9
1
2
L
7
1
0
R
7
6
5
R
7
6
3
D
7
7
2
R
7
7
8
R
7
7
7
R
7
7
6
L
7
1
1
R
7
7
4
R
7
8
8
R
7
8
7
L
7
1
2
R1779
C1750
D1701
Q710
Q711
R713
C
9
1
4
J R710
R922
R
9
1
4
R
7
1
1
R923
CN1751
R
1
7
8
5
CLP901
R
7
1
4
R
7
1
0
Q
9
0
5
Q
9
0
3
C
9
0
7
R
7
9
4
R
7
6
8
R
7
6
7
R
7
6
6
R
7
6
9
D
7
6
2
R
1
7
6
6
R
7
6
4
R
7
6
0
R
7
7
1
C
7
8
1
R
7
1
2
Q
7
1
2
C
9
1
5
R
1
7
8
1
R
1
7
8
0
R
1
7
8
3
D
7
8
3
Q
7
8
1
R
7
7
9
C
7
8
0
R
1
7
8
7
R
1
7
7
8
R
7
8
0
R
7
8
4
R
7
8
6
D
7
7
3
R
7
9
7
D
7
8
2
Q771
Q
7
7
2
Q
7
7
3
R
7
6
2
R
7
9
1
R793
Q761
R
7
9
6
D
7
6
3
R
9
2
1
B
E
B
E
1
3
1
3
J L1
1
9
HEATER
J L700
9
V
I
K
N/ S
B
G
E
E
R
V
M
N/ S +
N/ S -
E
V
D
+
H
E
A
T
E
R
N
C
2
0
0
V
B
+
1
9
1
6
SPARK
GAP
GROUND
4
5
6
7
TP701
8
9
10
11
12
13
G1
KR
KG
KB
G1
H2
H1
G1
G2
E
N
C
V
M
172421113
1- 862- 186- 13
1
A
B
C
D
E
2
3
4
5
6
C
N
4
4
0
3
C
N
4
4
0
2
CN4401
L4450
C4442
C4413
C4416
C
4
4
1
5
C
4
4
2
0
C
4
4
1
9
F
B
4
4
0
1
C
4
4
4
4
L4401
D4403
C4423
C4422
C
4
4
5
1
C
4
4
4
9
C
4
4
4
8
R
4
4
4
3
C4452
C4453
L4402
C
4
4
2
8
C
4
4
2
4
C
4
4
3
6
C
4
4
3
7
C
4
4
2
5
C4441
C4431
C
4
4
0
2
C
4
4
2
6
C4404
C4405
C4412
C4440
C
4
4
0
3
C
4
4
2
7
C
4
4
0
7
C
4
4
0
9
C4457
C4455
C4454
C
4
4
5
6
C
4
4
1
0
C
4
4
0
8
D4401
D4402
1
5
1
4
1
6
1- 866- 883- 11
172601711
R
L
G
N
D
L
T
R
T
M
I C 1
M
I C 2
GND
GND
M
I C DET
PON
SCL
SDA
9V
GND
1
A
B
2
3
4
5
CV
COMPONENT SIDE
[RGB DRIVE, CRT DRIVE, VELOCITY MODULATION] 
KR
COMPONENT SIDE
[AUDIO PROCESSOR, MIC INPUTS] 
R909
R910
R
1
7
8
9
Q902
Q
9
0
1
RV1701
J
1
7
5
1
L1751
RV1750
I C1751
I C1707
CN1707
CN1753
CN1755
J
W
1
7
0
1
R
1
7
8
4
C
L
P
0
2
R1761
R1762
J W
708
J W
704
J
W
7
0
6
J
W
7
0
7
J
W
7
0
3
C1774
C1778
C1751
C1775
C907
C912
C1755
C1777
C901
C903
C908
C
1
7
5
2
C1753
C
1
7
5
4
C902
C
9
1
4
C904
C906
C
9
0
5
C910
C909
D1754
D1755
D1756
D
1
7
5
8
D
9
0
3
D901
D902
R
1
7
6
3
R
1
7
6
4
R
1
7
6
5
R
1
7
6
8
R
1
7
6
7
R
1
7
6
6
R1788
R
9
0
4
R906
R923
R
1
7
5
9
R1758
R1757
R1756
R1770
R1760
R902
R
9
0
7
R
9
0
8
R901
R903
R905
R922
L901
CN903
CN1752
J
W
7
0
1
C
L
P
9
0
1
R
1
7
7
9
C
1
7
5
0
J
W
7
0
0
J W
791
C911
D1701
CN1751
R
1
7
8
5
J
W
7
0
9
J W
702
B
E
B
E
E
1
2
8
9
1
4
5
8
1
3
8
4
5
N/ S M
UTE
1
3
1
9
E
N
C
V
M
J L700
9
V
I
K
N
/
S
B
G
E
E
R
V
M
N
C
E
V
D
+
H
E
A
T
E
R
N
C
2
0
0
V
B
+
N
/
S
-
N
/
S
+
1
6
A- 1410-
920- A
BA6S- 04
G1
H1
G1
KB
KG
KR
G1
13
12
11
10
9
H2
7
6
G2
SPARK
GAP
GROUND
172421113
1- 862- 186- 13
1
A
B
C
D
E
2
3
4
5
6
C4449
L4401
R
4
4
4
3
D4403
Q4401
R4436
R4403
C4450
CN4401
C4409
C
4
4
0
4
I
C
4
4
0
1
R4422
C
4
4
3
3
R
4
4
2
1
C
4
4
4
0
R
4
4
2
9
R
4
4
2
0
R
4
4
1
9
C4431
I
C
4
4
0
6
C
4
4
4
1
C4437
C4436
C
4
4
5
1
D
4
4
0
4
C4427
C
4
4
3
2
R
4
4
4
5
C
4
4
2
2
R4411
R
4
4
1
2
C
4
4
2
3
R
4
4
0
9
FB4401
C
4
4
4
5
C
4
4
4
3
C4448
R
4
4
5
0
R
4
4
5
1
J
R
4
4
5
0
J
R
4
4
5
1
C
4
4
5
2
C4453
C
4
4
5
6
R
4
4
6
1
R
4
4
5
4
J R4452
R4458
C
4
4
5
4
C4457
J
R
4
4
5
5
R
4
4
6
0
R
4
4
5
7
R4456
L4402
CN4402
C
4
4
1
0
C4442
I C4402
R4415
R4435
R4453
C
4
4
3
0
R
4
4
1
3
C
4
4
1
4
C4412
C4413
C4415
C4416
C4418
C
4
4
1
7
C4419
C4420
C
4
4
4
4
J
R
4
4
0
1
R4439
J R4402
R4440
R4441
R4414
J
R
4
4
0
3
C4407
C
4
4
0
3
R
4
4
3
0
C4408
J
R
4
4
5
3
L
4
4
5
0
C
4
4
2
8
C4424
J R4454
I C4403
I
C
4
4
0
5
C
N
4
4
0
3
C4455
R4455
C
4
4
2
6
R4459
C4405
R
4
4
0
5
R
4
4
0
6
C4411
R4404
C4425
C
4
4
0
2
R
4
4
2
7
R
4
4
2
8
R4416
C4429
R4410
R4442
R4438
R4408
C
4
4
2
1
R4407
D4401
D4402
R4418
R4417
1
5
1
4
1
6
GND
GND
PON
M
I C1
M
I C2
GND
9V
SDA
SCL
M
I CDET
1
7
2
6
0
1
7
1
1
1
-
8
6
6
-
8
8
3
-
1
1
A
-
1
1
0
7
-
9
8
5
-
A
R
T
L
T
G
N
D
L
R
1
1
A
B
2
3
4
5
CV
CONDUCTOR SIDE
[RGB DRIVE, CRT DRIVE, VELOCITY MODULATION] 
KR
CONDUCTOR SIDE
[AUDIO PROCESSOR, MIC INPUTS] 
KV-21FK120
44
KV-21FK120
S
2
0
0
7
C
L
S
2
4
0
1
C
L
S
2
4
0
2
CN2004
R2004
D2005
C2003
R
2
2
0
1
I C2001
D2001
D2003
S
2
0
0
8
F
B
2
0
0
3
F
B
2
0
0
4
C
N
2
4
0
2
S
W
0
0
1
D
2
2
3
3
D2004
R
2
4
0
2
C2402
D
2
4
0
2
C2401
R
2
4
0
1
D2401
C
2
0
0
2
C
2
0
0
1
R
2
0
0
7
D2002
F
B
2
0
0
2
F
B
2
0
0
1
J
2
4
0
1
R2009
J
2
2
3
1
R2237
D
2
2
3
6
C2235
R
2
2
3
5
D
2
2
3
5
C
2
2
3
4
C
2
2
3
8
R
2
2
3
4
R
2
2
3
6
J
2
4
0
2
CN2005
S
2
0
0
5
S
2
0
0
4
S
2
0
0
3
S
2
0
0
2
S
2
0
0
1
S
2
0
0
6
R2008
R2011
R2010
C
2
2
3
9
R2238
R2203
R2202
C
2
2
4
0
C
2
4
1
2
C
2
4
1
1
V
C
C
G
N
D
O
U
T
CH+
CH-
VOL+
TV- V
L
E
D
-
T
M
R
N
C
G
N
D
S
I
R
C
S
G
N
D
VOL-
6
1
1
7
V
2
K
E
Y
M
E
N
U
R
2
L
2
G
N
D
G
N
D
M
I C1
M
I C2
GND
GND
PON
M
I CDET
P
W
R
O
N
5
V
-
S
T
B
Y
V
2
M
I C
ECO
PON
M
I C1
M
I C2
1
7
1- 866- 882- 11
172601611
1
A
B
2
3
4
5
6
7
8
9
10
1 
| 
2        | 
3 
| 
4 
| 
5 
| 
A
—
B
—
C
—
D
—
E
—
F
—
1
2
3
4
5
6
7
1
2
3
4
5
6
7
8
OUT
VCC
GND
1
2
3
4
5
6
C2238
R2234
R2236
R2238
S2007
S2008
R2201
R2203
R2202
R2008
R2009
R2010
R2011
S2005
S2001
S2002
S2003
S2004
R2007
S2006
IC2001
R2004
D2002
R2235
D2236
D2233
D2235
D2001
R2237
J2231
C2401
C2402
C2234
C2235
C2001
FB2001
FB2002
FB2003
FB2004
J2402
J2401
D2003
D2
0
04
D2005
SW001
D2401
D2402
CN2005
CN2402
CN2004
C2239
C2240
C2411
C2412
R2402
R2401
75
100k
1/4W
100k
1/4W
1.5k
6.8k
2.2k
6.8k
2.2k
820
680
100
SBX3081-71
1k
LNK0120022
220
1/4W
RD9.1EW-T1
RD9.1EW-T1
RD9.1EW-T1
5mm
MTZJ-T-77-5.6B
220
1/4W
50V
50V
25V
5.0MM
5.0MM
5.0MM
5.0MM
MTZJ-T-77-5.6B
M
TZ
J-
T
-7
7
-5
.6
B
MTZJ-T-77-5.6B
RD9.1EW-T1
RD9.1EW-T1
8P
6P
7P
4700p
4700p
10k
10k
GND01
TOP
TOP
M
U
D
S
LED-TMR
MPWR-LED
GND
5V-STBY
SIRCS
TO A BOARD
TO A BOARD
ON
POWER
VIDEO 2
GND
GND
AUDIO L2
AUDIO R2
MENU
KEY
CN002
VOL-
VOL +
CH-
CH +
TV-V
GND
CN004
VIDEO2
FRONT
NC
MIC 1
GND
MIC 2
GND
MIC DET
PON
TO-CN4403 KR BOARD
9-965-980-01<BA6>HK
HK BOARD SCHEMATIC DIAGRAM
HK
COMPONENT SIDE
[FRONT A/V, MENU KEY, IR DETECTOR] 
S
2
0
0
7
S
2
0
0
8
C
L
S
2
4
0
1
C
L
S
2
4
0
2
I C2001
D2002
J W
2415
R2201
C2003
J
W
2
0
0
3
J W
2004
C
2
0
0
2
D2001
D2003
CN2004
F
B
2
0
0
1
F
B
2
0
0
2
F
B
2
0
0
3
F
B
2
0
0
4
CN2402
J 2401
S
W
0
0
1
J
2
2
3
1
R2237
D
2
2
3
6
C
2
2
3
5
R
2
2
3
5
D
2
2
3
5
C
2
2
3
4
C2238
R
2
2
3
4
R
2
2
3
6
J
2
4
0
2
CN2005
J
W
2
4
1
1
S
2
0
0
5
S
2
0
0
4
S
2
0
0
3
S
2
0
0
2
S
2
0
0
1
S
2
0
0
6
C
2
2
3
9
R2238
J
W
2
0
0
1
C
2
2
4
0
R2203
J
W
1
0
0
2
D2005
D
2
2
3
3
R2009
R2010
J W
2009
D2004
R2011
R2008
R2202
J
W
2
0
0
5
J
W
2
0
0
6
J
W
2
4
2
3
R
2
4
0
2
J W
2007
C2402
R2004
C
2
4
1
2
D
2
4
0
2
J
W
2
4
2
2
C2401
D2401
R
2
4
0
1
C
2
4
1
1
J
W
2
4
1
9
J
W
2
4
1
8
J
W
2
4
1
7
J
W
2
4
1
6
J W
2420
J W
2421
C2001
R
2
0
0
7
V
C
C
VOL-
VOL+
CH-
CH+
TV- V
O
U
T
G
N
D
P
O
W
E
R
6
1
1
7
B
A
6
S
-
0
5
M
I C1
M
I C2
GND
GND
M
I CDET
PON
G
N
D
P
W
R
O
N
S
I
R
C
S
5
V
-
S
T
B
Y
G
N
D
N
C
L
E
D
-
T
M
R
K
E
Y
M
E
N
U
R
2
L
2
G
N
D
G
N
D
V
2
M
I C
ECO
M
I C1
M
I C2
V2
PON
L
O
C
.
H
O
L
E
2
O
F
F
S
E
T
1
9
7
1
1
-
8
6
6
-
8
8
2
-
1
1
1
7
2
6
0
1
6
1
1
A- 1109-
540- A
1
A
B
2
3
4
5
6
7
8
9
10
HK
CONDUCTOR SIDE
[FRONT A/V, MENU KEY, IR DETECTOR] 
45
KV-21FK120
KV-21FK120
2SB709A-QRS-TX
2SD601A-QRS-TX
2SB734-T-34
2SC3209LK-TP
2SA1837
2SA1091O-TPE2
2SA1309A-QRSTA
2SC3311A-QRSTA
2SD2144S-TP-UVW
2SC3840K
IRF614 2SK2663 
2SD2578-YB
2SC4793
ERB44-06TP1
1SS83TD
GP08DPKG23
RGP10GPKG23
RU4AM-T3
RD9.1EW-T1
MA111-TX 
UDZ-TE-17.5.1B UDZ-
TE-17.91B
D2SB60A-F04
DAP202K-T-146
D4SB60L-F
D5LC20U
E
B
C
B
C
E
LETTER SIDE
E
C
B
LETTER SIDE
E
C B
B
C
E
E
C B
G
D
S
D
G
S
1 2
3
CATHODE
ANODE
ERA38-06TP1
ERA82-004TP5
1SS133T-77
D1NS0R-TA
MTZJ-T-77-12C
MTZJ-T-77-15B
MTZJ-T-77-33B
MTZJ-T-77-39
CATHODE
ANODE
CATHODE
ANODE
ANODE
CATHODE
+
~
-
~
1
2
3
1
2
3
{
’
’
{
’
’
MARKING SIDE VIEW
CATHODE
ANODE
CATHODE
CATHODE
ANODE
GATE
TF541M
RU-1P
ERC06-15S
EGP20DPKG23
MTZJ-T-77-5.1C
MTZJ-T-77-5.6C
MTZJ-T-77-7.5A
MTZJ-T-77-10B
MTZJ-T-77-30D
RGP10-GPKG3
RGP02-17PKG23
RGP15GPKG23
5-4. SEMICONDUCTORS
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