DOWNLOAD Sony KLV-20SR3 Service Manual ↓ Size: 24.57 MB | Pages: 54 in PDF or view online for FREE

Model
KLV-20SR3
Pages
54
Size
24.57 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
klv-20sr3.pdf
Date
PREV: Sony KD-28DX51E (serv.man2) Service Manual

Sony KLV-20SR3 Service Manual ▷ View online

A
B
C
D
E
F
G
H
I
J
K
L
M
N
1
2
3
4
5
6
7
8
9
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- 29 -
~ A Board Schematic Diagram [ Tuner, Audio, Chroma Decoder, Scart 1 ] Page 3/3 ~
xx
CN3703
CN9050
SERVICE
CN3000
SYNC ADDER
XX
CONTROL AMP
C2604
470PF
C2605
470PF
R3626
150
SW_MONITOR
L3811
10UH
R3822
1K
C3801
0.01
C3802
47
16V
Q3801
MSB709-RT1
220
220
150
1.5k
47
COMPONENTS MARKED AS XX ARE NOT FITTED ON THIS MODEL
A
  
3/3
(5ms/div) 
(20us/div) 
(20us/div) 
(10us/div) 
(10us/div)
A(3/3) Board Waveforms
1Vp-p (H)
700mVp-p (H)
TP1
TP2
TP3
650mVp-p (H)
650mVp-p (H)
200mVp-p (H)
TP4
TP5
TP5
TP1
TP4
TP3
TP2
A
B
C
D
E
F
G
H
I
J
K
L
M
N
1
2
3
4
5
6
7
8
9
10
11
O
- 30 -
~ A Printed Wiring Board  Conductor Side A ~
~ A Board Semiconductor Location Table Side A ~
E
D
O
I
D
4
3
6
3
D
6
-
H
C
I
2
0
4
2
D
6
-
C
4
0
2
6
D
3
-
C
0
0
1
1
Q
6
-
F
0
0
5
2
D
5
-
D
5
0
2
6
D
2
-
C
5
0
2
2
Q
4
-
F
4
0
6
2
D
6
-
F
7
1
2
6
D
4
-
H
0
0
4
2
Q
6
-
C
5
0
6
2
D
6
-
F
C
I
1
0
4
2
Q
6
-
C
6
0
6
2
D
6
-
F
2
0
0
0
C
I
4
-
F
4
0
4
2
Q
6
-
C
7
0
6
2
D
6
-
G
0
0
0
2
C
I
4
-
G
5
0
4
2
Q
6
-
C
6
2
6
3
D
6
-
G
0
0
4
2
C
I
6
-
C
6
0
4
2
Q
6
-
C
8
2
6
3
D
6
-
H
0
0
5
2
C
I
4
-
C
0
0
6
3
Q
6
-
H
9
2
6
3
D
6
-
G
1
0
8
3
C
I
4
-
I
1
0
8
3
Q
6
-
I
0
3
6
3
D
6
-
G
1
1
8
3
C
I
3
-
I
0
0
2
6
Q
2
-
D
1
3
6
3
D
6
-
G
8
0
2
6
C
I
3
-
D
3
0
2
6
Q
2
-
E
~ A Board Semiconductor Voltage Table ~
f
e
R
)
s
(
)
e
(
)
g
(
)
b
(
)
d
(
)
c
(
f
e
R
)
s
(
)
e
(
)
g
(
)
b
(
)
d
(
)
c
(
f
e
R
)
s
(
)
e
(
)
g
(
)
b
(
)
d
(
)
c
(
f
e
R
)
s
(
)
e
(
)
g
(
)
b
(
)
d
(
)
c
(
0
0
4
2
Q
0
4
.
0
0
4
0
4
2
Q
7
.
0
1
.
0
6
.
0
6
0
4
2
Q
0
4
.
0
0
0
0
2
6
Q
0
3
.
3
0
1
0
4
2
Q
0
4
.
0
0
5
0
4
2
Q
0
4
.
0
0
0
0
6
3
Q
3
.
2
0
.
3
1
.
5
9
0
0
6
Q
0
0
1
.
0
1
~ A Board IC Voltage Table ~
o
N
f
e
R
o
N
n
i
P
)
V
(
s
t
l
o
V
o
N
f
e
R
o
N
n
i
P
)
V
(
s
t
l
o
V
o
N
f
e
R
o
N
n
i
P
)
V
(
s
t
l
o
V
o
N
f
e
R
o
N
n
i
P
)
V
(
s
t
l
o
V
o
N
f
e
R
o
N
n
i
P
)
V
(
s
t
l
o
V
o
N
f
e
R
o
N
n
i
P
)
V
(
s
t
l
o
V
o
N
f
e
R
o
N
n
i
P
)
V
(
s
t
l
o
V
o
N
f
e
R
o
N
n
i
P
)
V
(
s
t
l
o
V
o
N
f
e
R
o
N
n
i
P
)
V
(
s
t
l
o
V
o
N
f
e
R
o
N
n
i
P
)
V
(
s
t
l
o
V
2
0
0
0
C
I
1
1
.
2
0
0
0
2
C
I
5
1
.
0
0
0
0
2
C
I
1
2
6
.
4
0
0
0
2
C
I
8
3
2
.
7
0
0
0
2
C
I
5
5
0
0
0
0
2
C
I
7
7
0
0
0
5
2
C
I
1
7
.
1
0
0
5
2
C
I
1
1
0
1
0
8
3
C
I
1
1
5
.
2
1
0
8
3
C
I
6
2
5
.
2
2
1
.
1
6
1
.
0
4
2
0
9
3
1
.
8
6
5
8
.
3
0
8
0
.
5
2
0
2
1
2
.
7
2
1
0
.
5
7
2
5
.
2
3
1
.
1
7
1
.
0
5
2
0
0
4
1
.
7
7
5
8
.
3
0
0
4
2
C
I
1
0
.
4
3
0
1
0
8
3
C
I
1
4
.
2
3
1
5
.
3
2
3
0
.
5
5
5
.
2
8
2
.
0
7
2
2
.
0
5
4
7
.
3
0
6
8
.
3
2
0
.
4
4
0
2
1
.
2
4
1
7
.
3
7
3
1
.
1
6
5
.
2
9
2
.
0
8
2
2
.
0
7
4
4
.
0
5
6
0
.
5
3
0
.
4
5
7
.
1
3
5
.
1
5
1
0
8
3
0
.
4
7
5
.
2
0
1
2
.
0
0
3
2
.
0
8
4
4
.
0
6
6
0
.
5
4
0
6
4
.
5
5
1
.
2
0
2
4
.
2
1
1
8
3
C
I
1
0
8
1
.
5
1
1
0
.
5
3
3
8
.
3
0
5
8
.
3
7
6
5
.
1
5
0
.
4
7
4
.
7
6
1
.
5
1
2
6
.
1
2
3
.
0
0
0
0
2
C
I
2
5
.
3
2
1
0
.
5
4
3
8
.
3
1
5
8
.
3
8
6
5
.
1
6
0
.
4
8
1
.
5
7
6
.
2
2
2
8
.
1
3
0
3
5
.
3
3
1
0
.
5
6
3
8
.
3
3
5
8
.
3
1
7
4
.
2
7
0
.
4
9
9
.
5
1
9
3
.
0
3
2
8
.
1
4
5
.
4
4
3
.
0
7
1
0
7
3
8
.
3
4
5
8
.
3
2
7
3
.
2
8
1
.
8
0
1
0
0
1
8
.
0
5
2
5
.
2
5
1
.
5
A
B
C
D
E
F
G
H
I
J
K
L
M
N
1
2
3
4
5
6
7
8
9
10
11
O
- 31 -
~ A Printed Wiring Board Conductor Side B ~
~ A Board Semiconductor Location Table Side B  ~
E
D
O
I
D
0
3
0
0
C
I
3
-
G
2
0
0
2
Q
4
-
G
0
0
2
1
D
4
-
G
0
0
2
1
C
I
4
-
G
0
0
1
2
Q
4
-
D
1
0
0
2
D
5
-
E
0
0
3
2
C
I
4
-
E
1
0
1
2
Q
4
-
D
0
0
2
2
D
4
-
G
2
0
2
6
C
I
2
-
G
0
0
2
2
Q
4
-
E
1
0
2
2
D
4
-
G
5
0
2
6
C
I
4
-
I
1
0
2
2
Q
4
-
G
2
0
2
2
D
4
-
G
R
O
T
S
I
S
N
A
R
T
2
0
2
2
Q
4
-
G
3
0
2
2
D
4
-
G
1
0
0
0
Q
5
-
B
3
0
2
2
Q
5
-
E
4
0
2
2
D
4
-
G
2
0
0
0
Q
2
-
F
4
0
2
2
Q
5
-
G
5
0
2
2
D
5
-
G
6
4
0
0
Q
3
-
J
5
0
2
2
Q
5
-
G
0
0
6
2
D
6
-
D
7
4
0
0
Q
3
-
J
0
0
3
2
Q
4
-
E
1
0
6
3
D
6
-
D
0
0
2
1
Q
4
-
F
1
0
3
2
Q
4
-
E
7
2
6
3
D
6
-
E
1
0
2
1
Q
4
-
G
0
0
6
2
Q
5
-
D
2
0
2
6
D
3
-
G
0
0
3
1
Q
5
-
B
1
0
6
2
Q
6
-
D
9
0
2
6
D
3
-
I
1
0
3
1
Q
6
-
B
6
0
8
3
Q
4
-
B
C
I
0
0
0
2
Q
4
-
H
8
0
8
3
Q
3
-
B
1
0
0
0
C
I
5
-
B
1
0
0
2
Q
4
-
G
9
0
8
3
Q
3
-
B
A
B
C
D
E
F
G
H
I
J
K
L
M
N
1
2
3
4
5
6
7
8
9
10
11
O
- 32 -
~ G Board Schematic Diagram [ Power Supply ] ~
25V
0.01
C6015
XX
R6010
XX
C6017
50V
4.7
C6011
50V
1000p
C6010
1/10W
110
R6009
25V
C6018
0.01
50V
0.1
C6019
UF4005PKG23
D6005
1/4W
FPRD
10
R6024
1/10W
10k
R6026
1/10W
10k
R6025
1/4W
FPRD
R6023
10
1/2W
RF
0.1
R6006
XX
C6025
1/10W
470
R6029
CHIP
0
R6031
1/10W
1k
R6037
CHIP
0
R6039
CHIP
0
R6041
3
1
2
TL1431CZ-AP
IC6001
1
CN6000
XX
GND
275V
0.47
C6004
PT
1
1/10W
6.2k
R6042
1/10W
1.1k
R6043
1/10W
1k
R6027
1/10W
10k
R6005
25V
0.01
C6009
1/10W
22k
R6033
1/10W
22k
R6032
50V
1
C6024
D6007
MM3Z15VT1
CHIP
0
R6028
1/10W
22k
R6004
MM3Z15VT1
D6006
100uH
L6100
400V
PT
0.22
C6100
XX
C6034
D6000
D4SB60L-F
250V
4700p
C6002
F
1/10W
22k
R6022
1/10W
22k
R6020
MSD601-RST1
Q6002
MMDL914T1
D6002
1/10W
100k
R6017
24
21
22
23
1
234
567
8
91
0
19
20
14
13
12
11
18
17
15
16
MCZ3001UB
IC6000
Vsense
F/B
Ct
NC
Rt
GND
GND
GND
GND
GND
GND
Timer
NC
SS
Vc1
OCP
Vc2
PGND
NC
VGL
VB
VS
VGH
VD
MSD601-RST1
Q6000
MSD601-RST1
Q6005
100V
PP
1000p
C6014
1/10W
1k
R6044
1/10W
10k
R6019
1/10W
10k
R6018
PC123Y22
PH6000
PC123Y22
PH6001
250V
1000p
B
C6005
C6001
B
1000p
250V
25V
1500
C6029
275V
PT
0.22
C6003
1/2W
1M
R6003
S
2SK2842-LB142
Q6003
S
2SK2842-LB142
Q6004
D6003
MM3Z15VT1
D6004
MM3Z15VT1
MM3Z15VT1
D6001
25V
47
C6012
50V
10
C6016
MSB709-RT1
Q6001
XX
R6016
1/10W
510k
R6013
1/10W
510k
R6015
R6012
510k
1/10W
1/10W
510k
R6014
1/10W
13k
R6011
1.2k
R6035
1/10W
XX
R6036
50V
10
C6103
XX
C6108
16V
0.1
C6111
10V
1000
C6110
PC123Y22
PH6100
1/10W
33k
R6112
1kV
2200p
R
C6106
CHIP
0
R6108
3
1
2
TL1431CZ-AP
IC6101
50V
1000p
C6104
CHIP
0
R6111
1/4W
FPRD
10
R6106
R6107
1W
RS
100k
CHIP
0
R6105
1k
R6110
630V
1000p
C6109
1/10W
470
R6109
UDZSTE-4.7B
D6100
10ERB20-TB3
D6102
M1FL20U-4063
D6104
ERA22-08
D6103
16V
0.1
C6107
8
7
6
5
4
3
2
1
STR-A6169
IC6100
MMDL914T1
D6101
50V
47
C6105
50V
4.7
C6102
1kV
100p
SL
C6021
1kV
100p
SL
C6022
3.3uH
L6002
3.3uH
L6003
S
SI2301DS-T1
Q6006
M1FM3
D6014
22k
R6045
100k
R6047
MSD601-RT1
Q6008
1/10W
47k
R6052
FCH10A10 
D6010
FCH10A10 
D6012
0.1
C6033
C6035
XX
CHIP
10k
R6034
MSD601-RT1
Q6009
Q6010
MSB709-RT1
1/10W
1k
R6038
10k
R6057
1
C6050
UDZSTE-1718B
D6015
1/10W
4.7k
R6046
10uH
L6004
10uH
L6006
10uH
L6005
MSD601-RT1
Q6007
10k
R6049
47k
R6050
10k
R6051
XX
R6048
1/10W
10k
R6053
25V
1500
C6031
25V
470
C6028
25V
470
C6030
XX
C6013
XX
C6038
XX
C6039
XX
C6040
XX
C6037
FB6100
XX
5
JW6100
1/10W
10k
R6113
1/10W
RN-CP
10k
R6114
F6000
4A
250V
VR6000
250V
4700p
C6000
D6008
XX
D6009XX
XX
C6026
XX
L6001
FH6000
1
2
3
4
L6000
1
2
3
4
L6007
F6001
XX
5
JW6001
JW6003 XX
D10SC6M-4012
D6011
D10SC6M-4012
D6013
450V
220
C6007
C6023
0.022
800V
PP
7.5
JW6000
JW6002
XX
1
4
6
9
10
11
8
2
T6100
1
2
3
WHT
3P
CN6101
GND
STBY5V
GND
1
2
3
4
5
6
7
8
9
10
11
CN6001
11P
14.3V_B
14.3V_B
GND
GND
14.3V_A
14.3V_A
GND
GND
+33V
GND
POWER_AV
1
2
3
4
5
6
7
8
9
10
WHT
10P
CN6002
+16.5V
+16.5V
+16.5V
+16.5V
GND
GND
GND
PANEL_DET
BACKLIGHT
DIMMER
1
2
3
4
4P
PANEL_DET
BACKLIGHT
DIMMER
GND
1/4W
FPRD
4.7
R6100
2kV
22p
C6101
1.6A
PS6001
10W
RB
R6054
3.3
1
3
3P
CN6003
WHT
1
4
10
11
6
9
12
8
2
7
T6000
1
4
10
11
6
9
12
8
2
7
T6001
R6030
XX
50V
4700p
C6032
50V
0.1
C6027
2.2k
R6040
1/10W
R6055
1/4W
RN
2.2M
1/4W
RN
2.2M
R6056
R6101
10
1W
1/10W
RN-CP
39k
R6007
1/10W
RN-CP
39k
R6008
1/10W
160
R6021
250V
4700p
F
C6006
25V
47
C6020
1
2
CN6004
XX
PFC1
PFC2
CONNECTED TO SECONDARY
      BY METAL SUPPORT 
TO B BOARD
TO LCD
TO A BOARD
G..-KLV-20SR3
8.2M
R6000
1W
RN
PT
275V
0.47
C6004
AC IN
AC IN
CN0260
CN6204
CN6301
MAIN RECTIFIER
DRIVER
CN6005
R6062
0
50V
TO A BOARD
CN6201
COMPONENTS MARKED AS XX ARE NOT FITTED ON THIS MODEL
G 
POWER SUPPLY
 
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