Sony KV-21FK120 Service Manual ▷ View online
KV-21FK120
KV-21FK120
38
5-3. BLOCK DIAGRAM AND SCHEMATICS
Main Tuner
($C0)
Antena
Switch
Micro
M65582MF-XXXFP
($60)
IR
Receiver
Menu
Keys
Front
Panel
Keys
Stand by/
Timer
Led
M24C16
($A0,$A2,$A4,
$A6,$A8,$AA)
Reset
Degauss
SW
Video Processor/Comb Filter
($??)
Tilt
Rotation
CRT
VM
RGB
Amp
Audio Processor
NJM1134
($82)
Audio Amp.
TDA8580Q
Mute
AC Line
Main Power
Supply
Energy Star
5V Stand-by
B+ Rectifier
115V
Low B
Rectifier
12.5V
Audio
Rectifier 14V
9V Regulator
5V Regulator
Video 1
Video 2
Video 3
Video 4
V-Out
H-Out
FBT
DY
Monitor
Out
Audio
Out
Power
Key
VCC
O-MUTE
Audio Inputs
A
udi
o
O
ut
put
s
O-ANTSW
I-AFT
I-AFT2
O-MONO
O-AGCMUTE
O-SAP
I-SAP
I-STEREN
O-NS
I-PO
W
E
RN
I-KEY
I-
M
E
N
U
I-
R
M
C
N
O-
L
E
D
Mechanical
S-Video
I-MECSVD
O-
RE
L
A
Y
N
O-
DGC
I-HLDWN
I-RESET
IO
-B
D
A
T
O
-BCL
KN
IO
-SDAT
O
-SCL
KN
Communication
Picture Signal
Power
Sound Signal
Tuning Related
Control Lines
Video SW
O-SEL0
O-SEL1
Main Tuner
Antenna
Switch
Micro
M65582MF-XXXFP
IR
Receiver
Menu
Keys
Front
Panel
Keys
Stand by/
Timer
Led
M24C16
,
Reset
Degauss
SW
Video Processor/Comb Filter
Tilt
Rotation
CRT
VM
RGB
Amp
Audio Processor
NJM1134
Audio Amp.
TDA8580Q
Mute
AC Line
Main Power
Supply
Energy Star
5V Stand-by
B+ Rectifier
115V
Low B
Rectifier
12.5V
Audio
Rectifier 14V
9V Regulator
5V Regulator
Video 1
Video 2
Video 3
Video 4
V-Out
H-Out
FBT
DY
Monitor
Out
Audio
Out
Power
Key
VCC
O-MUTE
Audio Inputs
A
udi
o
O
ut
put
s
O-ANTSW
I-AFT
I-AFT2
O-MONO
O-AGCMUTE
O-SAP
I-SAP
I-STEREN
O-NS
I-PO
W
E
RN
I-KEY
I-
M
E
N
U
I-
R
M
C
N
O-
L
E
D
Mechanical
S-Video
I-MECSVD
O-
RE
L
A
Y
N
O-
DGC
I-HLDWN
I-RESET
IO
-B
D
A
T
O
-BCL
KN
IO
-SDAT
O
-SCL
KN
IIC
Picture Signal
Power
Sound Signal
Tuning Related
Control Lines
Video SW
O-SEL0
O-SEL1
MIC 1
MIC 2
PON
HK BOARD
I²
C
I²
C
Vol 1
Vol
2
Echo
KR BOARD
Echo
Mic
1
Mic
2
Mic
1
Mic
2
Mi
cs
Inputs
PON
N
atu
ra
l
s
igna
l
Process
s
ignal
M65845AFP
MA
X
54
78
MA
X
54
78
KV-21FK120
41
KV-21FK120
1
|
2 |
3
|
4
|
5
|
6
|
7
|
8
|
9
|
10
|
11
|
12
|
13
|
14
|
A
—
B
—
C
—
D
—
E
—
F
—
G
—
H
—
I
—
CV BOARD SCHEMATIC DIAGRAM
H
KG
G2
CV
KR G1
G4 HV
KB
1
2
3
4
5
6
7
8
9
1
1
2
3
4
5
6
7
8
1
2
3
1
2
3
4
5
6
1
1
3
5
6
7
8
9
10
11
12
13
G2
G1-1
H1
H2
G1-2
KB
KG
KR
G1-3
G4
CV
1
2
3
1
2
3
4
5
6
7
8
9
C901
C902
C903
C904
C905
C906
C907
C908
C909
C910
C911
C914
C915
C1752
C1753
C1754
C1755
C1775
C1777
CN1707
CN1755
D762
D763
D772
D773
D782
D783
D901
D902
D903
D1754
D1755
D1756
D1758
IC1751
J1751
J
W7
91
L901
L1751
R760
R762
R763
R764
R765
R766
R767
R768
R770
R772
R773
R774
R775
R776
R777
R778
R780
R782
R783
R784
R785
R786
R787
R788
R901
R902
R903
R904
R905
R906
R907
R908
R909
R910
R912
R914
R915
R916
R917
R918
R919
R920
R921
R922
R923
R1756
R1757
R1758
R1760
R1763
R1764
R1765
R
17
6
6
R1
76
7
R
17
6
8
R1770
R1778
R1780
R1781
R1787
RV1750
C912
JW702
D1701
CN1753
CN903
C1751
JR710
R911
R913
Q906
Q903
Q905
Q904
IC1707
Q762
Q763
Q761
Q771
Q772
Q773
Q781
Q782
Q783
Q902
Q901
C1774
C1778
Q1772
R1788
RV1701
R1789
R1784
R1785
R1761
R1779
CN1752
CN1751
2.2
160V
0.047
50V
470
16V
0.001
50V
0.047
200V
0.001
50V
33
160V
470
16V
16V
0.0047
500V
E
0.1
200V
100
25V
0.047
50V
0.01
25V
B
0.0047
2kV
E
0.1
250V
0.001
50V
B
2.2
250V
470
16V
16V
4.7
50V
50V
3P
MA111-TX
MA111-TX
MA111-TX
MA111-TX
MA111-TX
MA111-TX
1SS133T-77
1SS83TD
1SS83TD
1SS83TD
TDA6108JF/
N1B
4.7k
1/10W
1k
1/10W
15k
1/10W
270
1/10W
2.2k
1/10W
3.3k
1/10W
5.6k
1/10W
1k
1/10W
4.7k
1/10W
1k
1/10W
15k
1/10W
270
1/10W
2.2k
1/10W
3.3k
1/10W
5.6k
1/10W
1k
1/10W
4.7k
1/10W
1k
1/10W
15k
1/10W
270
1/10W
2.2k
1/10W
3.3k
1/10W
5.6k
1/10W
1k
1/10W
47
1/4W
2.7
1/4W
560
1/4W
18k
1/4W
1k
1/4W
18k
1/4W
2.7
1/4W
560
1/4W
47
1/2W
180
3W
220
1/10W
270
1/10W
1k
1/10W
1k
1/10W
1k
1/10W
100
1/10W
100
1/10W
820
1/10W
10k
1/10W
22
1/4W
47
1/4W
1k
1/2W
1k
1/2W
1k
1/2W
100k
1/2W
100
1/4W
100
1/4W
100
1/4W
10
0
1/
4W
10
0
1/
4
W
10
0
1/
4W
560k
1/2W
1/2W
10k
1/10W
22k
1/10W
27k
1/10W
22k
1/10W
110M
0P
MTZJ-T-77-
39
MTZJ-T-77-
39
PG104R
1000
7.5MM
RD9.1EW-T1
G2
3P
0
15
15
2SD601A-QRS-TX
BUFFER
2SD601A-QRS-TX
AMP
2SB709A-QRS-TX
BUFFER
2SD601A-QRS-TX
AMP
NJM4556AD
NS AMP
2SD601A-QRS-TX
BUFFER
2SD601A-QRS-TX
BUFFER
2SD601A-QRS-TX
BUFFER
2SD601A-QRS-TX
BUFFER
2SD601A-QRS-TX
BUFFER
2SD601A-QRS-TX
BUFFER
2SD601A-QRS-TX
BUFFER
2SD601A-QRS-TX
BUFFER
2SD601A-QRS-TX
BUFFER
KTA1659A
VM DRIVE 1
KTC4370A
VM DRIVE 2
1
25V
47
2SD601A-Q
VERT DEFL
VERT DEFL
2.2k
47k
4.7k
10.0 MM
33
3.3
5.0MM
9P
6P
TO A BOARD
TO A BOARD
G
B
B
G2
TO A BOARD
B
I
N
G
I
N
R
I
N
G
N
D
I
K
R
O
U
T
G
O
U
T
B
O
U
T
CN301
E
V
D
D
E
200V
NC
E
N/S COIL
-
N/S
COIL
+
G
N
D
I
N
+
2
I
N
-
2
O
U
T
2
I
N
+
1
I
N
-
1
O
U
T
1
O
U
T
2
VD+
HEATER
N/S
9V
E
NC
VM
E
VM
R
IK
B+
R.G.B. DRIVE
CRT DRIVE
VELOCITY MODULATION
CRT
27V: TIGER
CRT
27V: TIGER
N/S COIL
CN586
T585(FBT)
1.8
2.8
4.4
4.8
4.8
4.8
2
.
0
2
.
0
2
.
4
3
.
7
1
3
6
.
0
1
4
2
.
0
1
4
0
.
0
2.2
3.8
2.9
3.1
2.6
2.2
2.9
3.8
3.2
2.0
2.6
2.0
2.9
2.2
3.9
3.3
2.7
2.1
67.0
0.8
1.4
133.4
132.9
1.8
5.4
2.4
1.8
2.4
5.7
6.1
7.1
1.6
1.1
9-965-980-01<BA6>CV
+9V
+9V
4
5
6
B+
+9V
+9V
+9V
1
2
3
R
G
B
G
B
R
B
B
G
R
CV BOARD WAVEFORMS
1
1.3V p-p (H)
2
1.2V p-p (H)
3
1.0V p-p (H)
145.3V p-p (H)
4
117.0V p-p (H)
5
120.3V p-p (H)
6
Click on the first or last page to see other KV-21FK120 service manuals if exist.