Sony KV-SR253M50 Service Manual ▷ View online
– 48 –
KV-SR253M50
RM-GA002
4-3-9. F1 Board Schematic Diagram
A
1
2
3
4
5
6
7
B
C
D
E
F
G
H
I
J
1
2
2P
CN4601
AC IN
AC IN
1
2
WHT
2P
CN4602
AC OUT
AC OUT
1
1P
CN4603
GND
1
4
T4602
JW4603
XX
JW4604
XX
JW4601
XX
JW4602
XX
JW4605
XX
1431118211
JW4606
XX
JW4607
XX
JW4608
XX
FH001
FH002
XX
R4602
XX
R4603
C4602
0.68
1
2
2
3
3
4
T4601
820k
R4601
RN
C4601
XX
250V
4700p
B
C654
F4601
5A
250V
C4603
F1
(CISPR)
SPARK GAP
TO POWER CORD
TO A (Block 001)
CN100
TO H4 BOARD
CN1652
!
!
!
!
!
!
!
143521411
B-BX1L(06)13539-VT.-F1.-SR253M50
!
!
XX
0.5W
LFT
– 49 –
KV-SR253M50
RM-GA002
4-3-10. H4 Board Schematic Diagram
A
1
2
3
4
5
6
7
B
C
D
E
F
G
H
I
J
VCC
GND
OUT
RPM7240-H5
IC1900
G
R
SPB-25MVWF
D1903
S1650
470p
B
C1901
1SS133T-77
D1902
1
2
2P
CN1651
AC OUT
AC OUT
1
2
2P
CN1652
AC IN
AC IN
470p
B
C1900
RD5.6ESB2
D1901
RD5.6ESB2
D1900
1
2
3
4
5
WHT
5P
CN1900
LED G
LED R
GND
SIRCS IN
3.3V SEN
VD601
XX
H4
(AC SWITCH)
TO H5 BOARD
CN3907
TO A(003) BOARD
TO F1 BOARD
CN4602
CN600
!
!
!
B-BX1L(06)13539-VT-H4.-SR253M50
3.3V
178664912
A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
B
C
D
E
F
G
H
I
J
KV-SR253M50
RM-GA002
KV-SR253M50
RM-GA002
4-3-11. H5 Board Schematic Diagram
– 50 –
– 51 –
220
R3911
220
R3914
47
R3916
1k
R3907
1.5k
R3915
680
R3920
470
R3908
330
R3909
220
R3910
150
R3912
D3901
RD5.6ESB2
XX
R3918
XX
C3906
XX
R3902
R3922
XX
D3902
RD5.6ESB2
XX
R3924
XX
R3919
D3907
XX
XX
C3913
XX
R3917
XX
R3904
XX
R3905
XX
C3914
10uH
L3902
XX
L3901
J3904
XX
1
2
3
4
5
6
CN3903
XX
PH L IN
SP L IN
SP GND
SP GND
SP R IN
PH R IN
1
2
3
4
5
6
7
CN3905
7P
STBY 3.3V
GND
LED G
LED R
SIRCS
GND
KEY
3
4
1
2
J3902
5.0MM
JW3913
5.0MM
JW3919
5.0MM
JW3904
5.0MM
JW3905
JW3906
5.0MM
5.0MM
JW3918
RD5.6ESB2
D3908
L
R
V
J3903
3P
3P
XX
R3925
5.0MM
JW3914
1
2
3
4
XX
CN3901
SP L OUT
SP GND
SP GND
SP R OUT
1
2
3
4
5
WHT
5P
CN3907
LED G
LED R
GND
SIRCS IN
3.3V SEN
1
2
3
4
5
CN3908
5P
R IN
GND
L IN
GND
CV IN
R3926
XX
1SS133T-77
PROTECTOR
D3912
1SS133T-77
PROTECTOR
PROTECTOR
D3913
J3901
25V
47
C3910
25V
47
C3911
D3900
KRC110M
Q3901
KRC110M
Q3902
1
2
3
MICIN
GND
MICSW
1
2
3
XX
CN3910
GND
GND
NC
1
2
3
XX
CN3906
W GND
W GND
3D OUT
S3909
2
1
S3907
S3908
S3902
S3903
S3904
S3905
1
2
3
4
5
6
7
8
CN3911
XX
XX
STBY 3.3V
GND
LED G
LED R
SIRCS
GND
KEY
9V
8
7
6
5
4
3
2
1
IC3900
XX
C3916
XX
C3917
XX
C3920
XX
R3927
XX
C3900
XX
C3901
XX
C3902
XX
C3903
D3914 XX
D3915
D3903 XX
D3904
XX
D3905
XX
JW3910
XX
XX
L3903
1
2
3
4
5
6
7
8
9
XX
CN3904
R IN
GND
L IN
GND
CV IN
S IN
C IN
GND
Y IN
XX
R3933
XX
R3934
XX
R3935
XX
R3936
XX
C3922
XX
C3923
D3916
Q3903
J3905 XX
XX
R3931
XX
R3928
XX
R3929
XX
R3930
1k
R3932
XX
R3937
XX
C3924
XX
C3921
XX
*C3918
1
2
3
4
5
6
7
8
9
XX
CN3902
BLK
PH L IN
SP L IN
SP GND
SP GND
SP R IN
PH R IN
GND
3D IN
3D IN
H5
TO B BOARD
CN207
TO A BOARD
CN202
TO A BOARD
CN906
TO A BOARD
CN014
TO H4 BOARD
CN1900
MENU
VIDEO
VOL -
VOL +
CH -
CH +
SOUND
MODE
+
-
-
+
XX
BUFFER
BUFFER
XX
CN3909 XX
XX
XX
XX
169243121
SWITCH
169243121
SWITCH
169243121
SWITCH
169243121
SWITCH
169243121
SWITCH
169243121
SWITCH
169243121
SWITCH
1-770-329-13
XX
XX
B-BX1L(06)13539-VT.-H5.SR253M50
(FRONT PANEL)
3.3V
3.3V
– 52 –
KV-SR253M50
RM-GA002
A BOARD VOLTAGE LIST AND WAVEFORM
4-4. VOLTAGE MEASUREMENT AND WAVEFORM
Ref
Pin No.
Voltage[v]
Ref
Pin No.
Voltage[v]
Ref
Pin No
Voltage[v]
IC001
1
0
2
0
3
*
4
3.2
5
3.2
6
0
7
3.2
8
0
9
3.2
10
*
11
*
12
0
13
0.1
14
2.4
15
4.8
16
1.8
17
2.1
18
0
19
2.1
20
2.2
21
2.9
1.140Vp-p
PAL
9
1.020Vp-p
NTSC
9
22
1.2
1.320Vp-p
PAL
8
1.480Vp-p
NTSC
8
23
1.3
1.780Vp-p
7
24
1.8
25
1.8
26
*
27
*
28
0
29
0.1
30
0.1
31
(3.3)[4.5]
32
1.2
33
0
34
2.1
35
2.1
36
(3.8)[3.4]
37
(3.8)[3.4]
38
2.1
39
2.5
40
0
41
*
42
0.1
43
0.1
44
3.7
45
8.4
46
4.6
47
4.6
48
1.4
1.980Vp-p
6
49
2.1
50
2.1
51
1.3
52
1.5
53
2.1
54
2.1
55
1.6
56
2.1
57
2.1
58
1.3
59
1.5
60
3.4
61
3.4
62
3.4
63
3.4
64
0.4
65
2.0
66
0.3
5.500Vp-p
PAL
5
5.320Vp-p
NTSC
5
67
2.0
5.240Vp-p
4
68
0
69
4.8
70
1.2
71
1.2
72
1.2
73
1.9
74
1.6
75
0.1
76
0
77
0.2
78
1.2
79
1.2
80
1.2
81
0
82
4.8
83
1.9
84
3.0
85
1.6
2.360Vp-p
PAL
3
2.400Vp-p
NTSC
3
86
1.6
1.960Vp-p
PAL
2
1.740Vp-p
NTSC
2
87
1.6
1.880Vp-p
PAL
1
2.280Vp-p
NTSC
1
88
3.2
89
0
90
3.2
91
1.5
92
0
93
1.8
94
3.2
95
0
96
1.8
97
2.8
98
3.0
99
3.2
100
1.7
101
0
102
0.6
103
0
104
2.4
105
0
106
2.8
107
2.5
108
3.6
109
3.3
110
3.2
111
4.8
112
0.8
113
0.1
114
0
115
0.1
116
0.3
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