Page 1
SERVICE MANUAL
COMPACT COMPONENT SYSTEM
MX-J750R
Supplement
EE Russian Federation
MX-J750R
Area Suffix
This model is EE version that is added to the preceding model,
the MX-J750R.Therefore the service manual for this model is
consisting of Standard schematic diagrams(Power trans./Tuner/Polar),
Printed circuit board(Polar) and Parts list(except the mechanism part) only.
For others, please refer to the service manual for
MX-J700/MX-J750R(issue No.20821).
SOUND
MODE
TAPE A/B
REC
START/STOP
FADE
MUTING
RM–SMXJ700J REMOTE CONTROL
SP-MXJ750R SP-MXJ750R
SLEEP
FM MODE
+
–
COMPACT
CA-MXJ750R
DIGITAL AUDIO
Contents
Standard schematic diagrams -------- 2-1
Printed circuit board --------------------- 2-4
COPYRIGHT 2000 VICTOR COMPANY OF JAPAN, LTD.
No.20821B
Sep. 2000
Page 2
Page 3
MX-J750R
Standard schematic diagrams
Power transformer section
5
4
3
2
Parts are safety assurance parts.
When replacing those parts make
sure to use the specified one.
1
ABCD E F G
2-1
Page 4
MX-J750R
Tuner section
TU1
QAU0036-001
5
R5
120
D2
D1
C1
C3
0.1
10/16
CF1
QAX0403-001
C10
12P
D3
4
J1
QNB0014-001
L3
4.7
D4
C9
R3
220K
C2
0.01
R2
330
Q2
2SC2412K/R/-X
R11
4.7k
R4
330
Q1
2SC2814/4-5/-X
0
R6
C4
0.01
Q3
2SC2412K/R/-X
R12
DTA114YKA-X
4.7k
Q4
C25
100/10
C15
12P
X1
C16
12P
LC72136N
IC2
QAX0402-001
C22
150P
C23
150P
C24
150P
C17
0.001
C18
0.47/50
R23
1.8K
C56
10P
R10
2.2K
R22
4.7K
1K
1K
1K
R18
R19
R20
C20
1000P
C19
0.047
R26
2.2K
R25
330
R21
5.6K
Q5
DTA114YKA-X
R30
1.2K
C55
33P
L2
33
R24
10K
C53
C54
22/16
0.047
R41
3.3K
T1
QQR0793-001
C52
0.27
C57
0.001
QAX0403-001
C51
1/50
LA1838
IC1
CF2
C31
0.047
22/16
C48
0.0022
C58
C50
22/16
C32
0.047
C33
0.047
R60
47
0.047
C35
C60
C47
1/50
R38
C45
10/16
39K
C44
10/16
R39
39K
C43
0.0018
C42
0.0018
C41
10/16
C40
10/16
R37
10K
R36
3.3K
C38
1/50
0.22/50
C37
1/50
5.6k
R35
C39
C36
1/50
R40
27K
C46
0.022
R34C34
0.022
10K
R70
3
R13
10K
R15
C11
0.022
3.3K
L1
QQR1094-001
C12
0.047
C13
12P
R14
100K
R16
4.7K
C14
R17
68100/10
C7
0.001
2
R29
10K
R28
10K
R27
0.001
10K
C21
0.022
C6
D11
1SS133
5.6V
LOUTCEROUT
9V
GND
STEREO
CK
DATA
D.GND
RDDA
RDCL
CN1
QGF1205F1-13
FMIN
R33
POLAR
CF3
QAX0610-001Z
330
RIN
LIN
C26
0.001
C27
0.001
CN3
QGF1205C1-11
C30
100/16
R32
1K
C75
C59
0.001
L70
100
R31
1K
10/50
1K
1K
1K
R71
R72
R73
LC72723
IC3
C76
C74
330P
0.1
C72
560P
C73
0.1
C70
22P
X70
QAX0263-001Z
C71
22P
FM/TUNER signal
AM signal
1
2-2
HABC DEFG
Page 5
MX-J750R
POLAR Section
C123
R117
62k
R123
220P
220K
5
IC7
BA15218
IC8
BA15218
R120
220K
R118
R112
0.01
D102
10K
C124
1SS133
D100
RB721Q-T2
D101
RB721Q-T2
10K
Q12
47K
R131
R121
C117
C110
R111
56K
1/50
R114
5.6k
4
L100
QQR0522-001
R113
C114
56K
0.01
C116
R110
270P
C113
12K
3
20k
CN100
GND
5.6V
FMIN
POLAR
STEREO
LOUT
ROUT
2
LIN
RIN
TUNED
VR100
D104
0.01
R116
1SS133
C115
270P
220K
1/50
C131
C111
3.3/50
10K
R125
R128
47K
KTC3199/GL/-T
Q10
R115
180K
C128
3.3/50
R124
10K
4.7/50
4.7/50
R127
C118
KTC3199/GL/-T
D103
1SS133
47K
33K
D110
C119
R119
0.0022
D111
1SS133
1SS133
C120
220K
0.0022
C125
1/50
C121
22/10
Q11
KRC102M-T
R129
100K
C127
C126
R126
1/50
1/50
33K
C129
1/50
R134
270K
R133
270K
R122
220K
C122
220P
R136
180K
R135
180K
R138
220K
R137
220K
R132
Q13
1K
KRC102M-T
C132
1/50
1
ABCD E F G
IC6
BU4066BC
R130
100K
C130
1/50
EE
MX-J750R
FM/TUNER signal
2-3
Page 6
MX-J750R
Printed circuit board
POLAR Board
5
B
R128
R125
R124
4
R123
R135
R137
R133
3
R121
C120
2
R116
C123
C121
Q10
C116
R115
C126
R120
R117
-MEMO-
T002
11
LIN
IC6
ROUT
7
B
D104
R111
STEREO
LOUT
1
R132
B
E
IC8
8
5
R134
8
5
C115
IC7
4
R119
D101
1
1
C127
D100
C117
R114
4
R122
C122
R136
R138
R113
R112
C118
C114
C129
C124
C119
Q12
D110
D111
Q11
C128
R129
C113
E
TUNED
RIN
14
8
C131
R131
E
1
POLAR
CN100
FMIN
5.6V
GND
C132
C130
R130
EB
R127
Q13
D103
D102
R118
C125
R126
11
CN100
1
C110
C111
VR100
R110
L100
1
ABC
2-4
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Page 8
MX-J750R
VICTOR COMPANY OF JAPAN, LIMITED
AUDIO & COMMUNICATION BUSINESS DIVISION
PERSONAL & MOBILE NETWORK B.U. 10-1,1Chome,Ohwatari-machi,Maebashi-city,371-8543,Japan
No.20821B
Printed in Japan
200009(V)
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