Sony KV-28CS70B Service Manual ▷ View online
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B
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- 37 -
3 P
*
0 . 1
0
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TO A BOARD
CN7000
7
TO D BOARD
CN8601
~ VM Board Schematic Diagram [ Velocity Modulation ] ~
~ H6 Board Schematic Diagram [ Front AV Input, Headphone ] ~
~ F5 Board Schematic Diagram [ AC In, SIRCS, LED ] ~
f
e
R
)
s
(
)
e
(
)
g
(
)
b
(
)
d
(
)
c
(
0
0
4
7
Q
0
.
5
7
.
5
7
.
8
1
0
4
7
Q
9
.
0
5
.
1
1
.
4
2
0
4
7
Q
5
.
5
1
.
6
9
.
8
3
0
4
7
Q
1
.
5
5
.
5
9
.
8
4
0
4
7
Q
7
.
4
1
.
4
0
5
0
4
7
Q
1
.
5
7
.
4
0
6
0
4
7
Q
4
3
1
8
.
3
3
1
8
6
7
0
4
7
Q
1
.
1
4
.
1
8
6
8
0
4
7
Q
3
.
6
6
.
5
5
.
2
9
0
4
7
Q
7
.
5
3
.
6
9
.
0
~ VM Board Voltage Table ~
~ VM Board Waveforms ~
5ms/div
5ms/div
5ms/div
1.54 Vp-p (H)
1.4 Vp-p (H)
TP1
TP2
20 Vp-p (H)
TP3
HZS9.1NB2
D4500
50V
1
C4501
1/4W
470k
R4500
C4500
100p
1/4W
100
R4501
C4502
XX
50V
1
C4504
C4503
100p
C4505
XX
1/4W
470k
R4502
1/4W
100
R4503
HZS9.1NB2
D4501
RD6.8ESB2
D4502
XX
R4504
RD6.8ESB2
D4503
XX
R4505
C4506
XX
C4508
XX
1/4W
120
R4508
1/4W
120
R4506
1/4W
120
R4509
1/4W
120
R4507
5
JW4501
5
JW4500
C4507
XX
C4509
XX
10uH
L4501
10uH
L4502
S4500
S4501
S4502
1/4W
6.8k
R4510
1/4W
3.3k
R4511
1/4W
15k
R4512
1/4W
10k
R4513
5
R4515
1/4W
1.5k
R4514
5
L5400
1
2
3
4
5
6
7
CN4500
XX
V
OL-
V
OL+
PRESET
VIDEO
PR
OG-
PR
OG+
GND
1
2
3
4
5
6
7
8
9
WHT
9P
CN4501
KEY
C
GND
Y/CVBS
GND
L
GND
GND
R
1
2
3
4
5
6
WHT
6P
CN4502
W
OOFERMUTE
R IN
R OUT
GND
L OUT
L IN
J4501
3
4
1
2
L
R
V
S
J4500
H6
H6.-28/32CS70
COMPONENTS MARKED AS XX ARE NOT FITTED ON THIS MODEL
FRONT AV INPUT, HEADPHONE
TO A BOARD
CN2502
TO A BOARD
CN2000
1
3
5
5P
CN6102
AC OUT
AC OUT
1
2
2P
CN6100
AC IN
AC IN
Q1101
1
2
3
4
5
6
7
CN1100
GND
STBY +5V
GND
KEY
GND
LED
SIRCS
D1100
RD5.6ESB2
1/10W
2.2k
R1105
D1101
XX
50V
220
C1100
1/10W
100
R1106
1/10W
4.7k
R1102
G
R
L-59SRSGC-CC
D6401
1/10W
47k
R1103
VCC
GND
OUT
SBX3081-51(30)
IC6400
1/10W
330
R1101
1/10W
220
R1104
1/10W
220
R1100
DTA144EKA
Q1100
XX
JW001
XX
JW002
1
CN6101
TAB(CONTACT)
A_Lightning Wire
FH001
5A
F001
0.0047
C1101
VD6100
1/2W
RC
1M
R6100
S6100
1
2
3
4
4P
CN1101
BLK
SIRCS
LED
GND
STBY +5V
TO G BOARD
CN6001
F5
F5.-28/32CS70
A C I N , S I R C S , L E D
250V
DTA144EKA
TO A BOARD
CN0103
XX
COMPONENTS MARKED AS XX ARE NOT FITTED ON THIS MODEL
A
B
C
D
E
F
G
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N
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- 38 -
~ G Printed Wiring Board Conductor side ~
Note :
Portions of the circuit contained within
the marked areas as shown have high
voltages present. Use care to prevent
electric shock during inspection or repair.
An Isolation Transformer must be used
during any Service work to avoid possible
shock hazard due to live chassis. The
chassis of this receiver is directly
connected to the power line.
Portions of the circuit contained within
the marked areas as shown have high
voltages present. Use care to prevent
electric shock during inspection or repair.
An Isolation Transformer must be used
during any Service work to avoid possible
shock hazard due to live chassis. The
chassis of this receiver is directly
connected to the power line.
~ H6 Printed Wiring Board Conductor side ~
~ G Board Semiconductor Location Table ~
E
D
O
I
D
2
1
0
6
D
3
-
E
4
3
0
6
D
2
-
E
8
0
0
6
Q
4
-
D
2
0
0
6
D
3
-
A
3
1
0
6
D
3
-
A
C
I
9
0
0
6
Q
4
-
E
3
0
0
6
D
4
-
G
5
1
0
6
D
2
-
E
1
0
0
6
C
I
5
-
G
0
1
0
6
Q
2
-
B
4
0
0
6
D
4
-
G
3
2
0
6
D
3
-
H
R
O
T
S
I
S
N
A
R
T
4
1
0
6
Q
2
-
J
8
0
0
6
D
3
-
G
0
3
0
6
D
4
-
G
3
0
0
6
Q
1
-
M
1
0
1
6
Q
1
-
L
9
0
0
6
D
4
-
E
1
3
0
6
D
2
-
D
5
0
0
6
Q
2
-
B
2
0
1
6
Q
1
-
J
0
1
0
6
D
4
-
E
2
3
0
6
D
2
-
D
6
0
0
6
Q
4
-
H
3
0
1
6
Q
1
-
J
1
1
0
6
D
3
-
E
3
3
0
6
D
2
-
E
7
0
0
6
Q
3
-
H
5
0
1
6
Q
1
-
L
~ F5 Printed Wiring Board Conductor side ~
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- 39 -
~ G Board Schematic Diagram [ Power Supply ] ~
D6035
5MM
FB6006
5MM
FB6005
5MM
A
B
C
D
E
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- 40 -
~ D Board Schematic Diagram [ Deflection ] ~
C8119
0.1
D8860
RD15ESB2
5600PF
1.2V
0.56
250V
250V
5P
7P
8.2K
XX
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