DOWNLOAD Sony KV-20FS120 Service Manual ↓ Size: 6.21 MB | Pages: 79 in PDF or view online for FREE

Model
KV-20FS120
Pages
79
Size
6.21 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kv-20fs120.pdf
Date
PREV: Sony KV-21FS105 (serv.man2) Service Manual

Sony KV-20FS120 Service Manual ▷ View online

KV-20FS120/21FM120/21FS120/21FA310/24FS120/25FS120
38
KV-20FS120/21FM120/21FS120/21FA310/24FS120/25FS120
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
($82)
Audio Amp.
TDA8580Q
Mute
AC Line
Main Power
Supply
Energy Star
5V Stand-by
B+ Rectifier
115V
Low B
Rectifier
12.5V
Audio
Rectifier 14V
9V Regulator
5V Regulator
Video 1
Video 2
Video 3
Video 4
V-Out
H-Out
FBT
DY
Monitor
Out
Audio
Out
Power
Key
VCC
O-MUTE
Audio Inputs
A
udi
o
O
ut
put
s
O-ANTSW
I-AFT
I-AFT2
O-MONO
O-AGCMUTE
O-SAP
I-SAP
I-STEREN
O-NS
I-PO
W
E
RN
I-KEY
I-
M
E
N
U
I-R
M
C
N
O-
L
E
D
Mechanical
S-Video
I-MECSVD
O-
RE
L
A
Y
N
O-
DGC
I-HLDWN
I-RESET
IO
-B
D
A
T
O
-BCL
K
N
IO
-S
D
A
T
O
-SCL
K
N
Communication
Picture Signal
Power
Sound Signal
Tuning Related
Control Lines
Video SW
O-SE L0
O-SE L1
Main Tuner
($C0)
Antenna
Switch
Micro
M65582MF-XXXFP
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
NJM xxxx
Mute
AC Line
Main Power
Supply
Energy Star
5V Stand-by
B+ Rectifier
115V
Low B
Rectifier
12.5V
Audio
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
K
N
IO
-S
D
A
T
O
-SCL
K
N
IIC
Picture Signal
Power
Sound Signal
Tuning Related
Control Lines
Video SW
O-SE L0
O-SE L1
Dolby Pro Logic
Cross
Over
Audio Amp
TDA8947J
Audio Amp
TDA8947J
TruSurround
NJM2180
Audio
Processor
NJW1164
21FM210=14V
all others=18V
for FA310 models
5-3.  BLOCK DIAGRAM AND SCHEMATICS
(THIS SECTION FOR KV-21FA310 MODELS ONLY)
41
KV-20FS120/21FM120/21FS120/21FA310/24FS120/25FS120
KV-20FS120/21FM120/21FS120/21FA310/24FS120/25FS120
HB BOARD SCHEMATIC DIAGRAM  (ALL EXCEPT KV-21FA310)
1 
| 
2        | 
3 
| 
4 
| 
5 
A
—
B
—
C
—
D
—
E
—
F
—
1
2
3
4
5
6
7
1
2
3
4
1
2
3
4
5
6
7
8
9
10
11
12
V
L
R
OUT
VCC
GND
C2238
R2234
C2234
R2236
C2235
R2238
S2007
S2008
R2201
R2203
R2202
R2008
R2009
R2010
R2011
S2005
S2001
S2002
S2003
S2004
R2007
S2006
R2004
C2001
D2002
J2401
J2231
R2235
R2237
D2236
D2233
D2235
JW2001
D
20
0
4
D
20
0
5
D2001
D2003
CN2004
CN2005
CN2402
IC2001
C2401
C2402
FB2001
FB2002
FB2003
FB2004
R2401
R2402
75
1
50V
100k
1/4W
1
50V
100k
1/4W
1.5k
6.8k
2.2k
6.8k
2.2k
820
680
100
1k
100mF
25V
LNK0120022
220
1/4W
220 1/4W
RD9.1EW-T1
RD9.1EW-T1
RD9.1EW-T1
5mm
MT
ZJ
-
T-
7
7-
5.
6
B
M
TZ
J
-T
-
77
-5
.
6B
MTZJ-T-77-5.6B
MTZJ-T-77-5.6B
7P
12P
4P
SBX3081-71
SIRCS
22
22
1.1UH
1.1UH
1.1UH
1.1UH
470
470
*
*
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
VIDEO2
FRONT
SP R+
SP R-
SP L-
SP L+
NC
SP L+
SP L-
SP R-
SP R+
CN005
9-965-959-01<BA6S>HB
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