2 Electrical Section
13
2
MAIN BOARD_3/3 Circuit Diagram
MB621876
MBCG10692
/SRVCS
/RESET
/RD
DY0
DY1
DY2
DY3
DY4
DY5
DY6
DY7
DY8
DY9
DY10
DY11
FAN
D0
D1
D2
D3
D7
D6
D5
D4
PENFRC
PENPH
A1
A2
A3
A4
A5
A6
D0
D1
D2
D3
D4
D5
D6
D7
A[0..21]
D[0..15]
A[0..21]
D[0..15]
/WR
/INTSRV
/SRVINTV
RUN
+5
+5
+5
+5
+5
+5
+5
+5
R20
10K
R21
10K
R22
10K
D9
SEL-6414E
C29
CE1000p
C30
CE1000p
C31
CE1000p
C32
CE1000p
D1
3
Q1
2
D2
4
Q2
5
D3
7
Q3
6
D4
8
Q4
9
D5
13
Q5
12
D6
14
Q6
15
D7
17
Q7
16
D8
18
Q8
19
CLK
11
CLR
1
U19
74HC273F
R7
0
+5
4
GND
2
OUT
3
NC
1
U20
SG531T 49.152MHz
9
8
U12D
74LS14
P12
R37
No-Mount (1K)
R4
470
1
2
3
4
5
6
CN12
IL-G-6P-S3T2-E
1
2
3
4
5
6
7
CN13
IL-G-7P-S3T2-E
5
5
4
4
6
6
3
3
7
7
2
2
8
8
1
1
RA15
MNR34J5A330
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
CN14
5483-15A
P13
P14
P15
P16
P17
P18
P19
P20
P21
P22
P23
P24
P25
P26
P27
P28
P29
2
1
D7A
DA227
3
4
D7B
DA227
B
3
C
2
TR1
DTC114EF
B
3
C
2
E
1
TR2
DTC114EF
A1
2
Y1
18
A2
3
Y2
17
A3
4
Y3
16
A4
5
Y4
15
A5
6
Y5
14
A6
7
Y6
13
A7
8
Y7
12
A8
9
Y8
11
G1
1
G2
19
U17
74LS541
A0
81
A1
82
A2
83
A3
84
A4
85
A5
86
D0
68
D1
69
D2
70
D3
71
D4
72
D5
73
D6
74
D7
75
CS
76
RD
66
WR
67
INT
87
ITA
77
RSTI
64
CKI
80
RNO
91
RNI
92
XPHA
99
XPHB
100
YPHA
61
YPHB
62
CNST
88
ACC
89
UCK
94
DDACK
95
TEST
63
MUX
96
MUY
97
MUTE
98
HEXMD
93
CWX
1
CCWX
2
ECWX
5
ECCWX
6
RNGX
7
OVRX
8
XCA
9
XCB
10
XCC
11
XCD
12
XP0
13
XP1
14
XP2
16
XP3
17
XP4
18
XP5
19
XP6
20
XP7
21
XP8
22
XP9
23
XPA
24
XPB
25
XPC
26
XPD
27
XPE
30
XPF
31
CWY
57
CCWY
58
ECWY
59
ECCWY
60
RNGY
32
OVRY
33
YCA
34
YCB
35
YCC
36
YCD
37
YP0
38
YP1
39
YP2
41
YP3
42
YP4
43
YP5
44
YP6
45
YP7
46
YP8
47
YP9
48
YPA
49
YPB
50
YPC
51
YPD
52
YPE
55
YPF
56
U23
R15239219
R39
100K
C48
PO0.01u/50V
R45
8.2K
R40
100K
VR1
1KVR
R44
100K
VR2
20KVR
C47
CE1000p
3
2
1
4
11
U25A
BA10324A
5
6
7
U25B
BA10324A
DX0
DX1
DX2
DX3
DX4
DX5
DX6
DX7
DX8
DX9
DX10
DX11
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
O
M
G
L
RA23
EXBM16D8AL
DA0
DA0
DA1
DA2
DA3
DA4
DA5
DA6
DA7
DA1
DA2
DA3
DA4
DA5
DA6
DA7
xpha
xphb
ypha
yphb
xpha
xphb
ypha
yphb
5
5
4
4
6
6
3
3
7
7
2
2
8
8
1
1
RA22
MNR34J5A102
B1
1
B2
2
B3
3
B4
4
B5
5
B6
6
B7
7
B8
8
B10
10
B12
12
B9
9
B11
11
B13
13
B14
14
B15
15
B16(LSB)
16
SJ
19
IOUT
21
IBPO
22
RFB
18
VOUT
17
U28
PCM55
B1
1
B2
2
B3
3
B4
4
B5
5
B6
6
B7
7
B8
8
B10
10
B12
12
B9
9
B11
11
+VS
23
COM
20
B13
13
B14
14
B15
15
B16(LSB)
16
-VS
24
SJ
19
IOUT
21
IBPO
22
RFB
18
VOUT
17
U29
PCM55
+AV5
-AV5
+AV5
-AV5
PC23
CE0.1u
PC22
CE0.1u
PC24
CE0.1u
PC25
CE0.1u
DX0
DX1
DX2
DX3
DX4
DX5
DX6
DX7
DX8
DX9
DX10
DX11
DY0
DY1
DY2
DY3
DY4
DY5
DY6
DY7
DY8
DY9
DY10
DY11
5
6
7
+
-
U30B
M5220L
R52 2.2K
R53 2.2K
R54
47K
R55 47K
C51
CE2200p
C52
CE2200p
3
2
1
8
4
+
-
V+
V-
U30A
M5220L
R48 2.2K
R49 2.2K
R50
47K
R51 47K
C49
CE2200p
C50
CE2200p
+AV5
-15
PC26
CE0.1u
PC27
CE0.1u
SRVSRCH
SRVSRCL
SOL+
SOL-
C46
CE1000p
VCC
25
ALM
3
PHA
5
PHB
23
ENA A
6
ENA B
22
VREFA
2
VREFB
26
CR
4
NC
19
VSA
1
RSA
11
RSB
17
PG
13
VSB
27
VMMA
8
VMMB
20
OUT1
10
OUT2
12
OUT3
14
OUT4
18
LG A
7
LG B
21
DECAY
24
NC
9
NC
15
NC
16
U31
MTD2005
+40
R59
1
Ω
1/2W
+5
R58
8.2K
C56
4700p
C55
CE0.01u
R57
2.2K
R56
10K
R43
100K
R60
10K
SERVO MUTE
VFC
PFC
VFG
PFG
SRVSRCH
SRVSRCL
FAN
Grit-Motor Gain
Carr-Motor Gain
TP16
TP15
TP25
TP26
TP29
TP19
TP20
TP23
ECWX
ECCWX
ECCWY
ECWY
RNGY
RNGX
C41
CE0.01u
2
1
D5A
DA227
3
4
D5B
DA227
+5
D6
D1FL20U
D8
D1FL20U
VI
2
GND
1
VO
3
U7
AN79M05F
-AV5
-15
PC34
CE0.1u
PC35
CE0.1u
R41
No-Mount(0)
E
1
COM
20
-VS
24
+VS
23
Summary of Contents for CAMM-1 PRO CM-300
Page 4: ... MEMO ...
Page 6: ...2 1 Structure Spare Parts 1 1 2 FRAME ...
Page 28: ...24 3 Replacement of Main Parts 3 MEMO ...
Page 62: ......
Page 63: ...CM 500 400 300 ...