Advertisement
U
V
(X28-3130-00)
IC1
: HA12230NT
Q Q
3 7 6 3 1 5 1 5 0
Q1,2
: 2SB1424(Q,R)
Q3
:
DTC143TSA or
1
UN4216
Q4
: KRC103M or
UN4212
Q5,6,19
: DTC124EUA or
UN5212
Q8
: KTC3205 or
2SC3940A(R,S)
Q9,10
: KTC3199(Y,GR) or
2SC2785(F,E)
Q15-18
: RK7002
D1,2
: 1SS133 or
HSS104A
2
D4
: S5688B(TPB5)
DIGITAL LINE
SIGNAL LINE
GND LINE
B LINE
+B
CN3
L-PLAY
3
1
1
Lch
L-REC
2
2
R/P HD
R-REC
3
3
Rch
R-PLAY
4
4
GND
5
5
E HD
T E
L
1 3 9 4 2 2 9 6 5 1 3
4
ERASE
6
6
SOL
5
CN2
SOL
2.2K
12
12
PHOTO
11
11
PLAY-SW
10
10
CPM+
9
9
MATSUSHITA
NC
8
8
MTR
NC
7
7
6
NC
6
6
COMMON
5
5
CrO2-SW
4
4
w w w
PACK-SW
3
3
REC-F-SW
2
2
REC-R-SW
1
1
The DC voltage is an actual reading measured with a high impedance type voltmeter with a cassette
loaded at playback mode. The measurement value may vary depending on the measuring instru-
7
ments used or on the product. Bias circuit DC voltage is measured while in the record mode.
W
X
PLAY : 0V
REC : 4.0V
Q19
Q17
Q18
R23
R24
1M
1M
Q15
Q16
IC1
R21
R22
1M
1M
R1
220K
C1
680P
L2 10mH
C16 220P
L1 10mH
C15 220P
L3
PLAY : 8.3V
STOP : 8.7V
7
Q1
D4
1
+B
R119
Q2
47K
+B
R118
47K
PLAY : 8.2V
STOP : 8.7V
PLAY : 4.6V
Q4
Q3
STOP : 0V
2
3
4
x
a o
6
.
i
Y
Z
R105 10K
8.9V
+B
C100 +
100u10
R7 7.5K
10
9
18
4.5V
PLAY : 0V
PLAY : 0V
PLAY : 4.0V
4.5V
REC : 4.5V
STOP/REC : 4.2V
REC : 8.0V
PLAY : 4.5V
REC : 4.2V
4.5V
4.5V
4.5V
C4
8200P
R2 220K
C2 680P
R8
7.5K
R16
C14
15K
10u50
Q
Q
+
3
7
R15
C13
15K
10u50
+
+B
REC : 4.5V
REC : 8.9V
R113
10 1/4W
Q8
Q9
D2
REC : 5.2V
Q10
+9V
u 1 6 3
y
DOLBY and the double-D symbol are trademarks of Dolby Laboratories Licensing Corporation. Noise
reduction circuit made under license from Dolby Laboratories Licensing Corporation.
AA
AB
R100
2
4
8
+9V
9
9
4.7 1/4W
PLAY : 4.5V
REC : 4.2V
9.0V
+9V
R25 1K
20
C21 4700P
R26 1K
20
C22 4700P
6
3
1
5
1
5
0
8
9
C11
R9
4.7u50
5.6K
10u50
18
L4
+
10uH
Q6
Q5
C12
R10
4.7u50
5.6K 10u50
+
14
REC : 4.0V
+9V
R103 100
10
R104 10K
9
8
7
6
5
4
m
3
2
c o
1
.
MDX-G3 (2/3)
Y39-3740-21
AC
AD
CAUTION: For continued safety,
2
8
9
9
replace safety critical components
only with manufacturer's recommend-
ed parts (refer to parts list).
indi-
cates safety critical components. For
continued protection against risk of
fire, replace only with same type and
rating fuse(s). To reduce the risk of
electric shock, leakage-current or
resistance measurements shall be
carried out (exposed parts are
acceptably insulated from the supply
E3
circuit) before the appliance is
returned to the customer.
E1
E2
CN1
23
TA +9V
22
L-PLAY-OUT
21
TA MGND
20
R-PLAY-OUT
2
4
9
8
2
9
9
19
NC
C7
18
L-REC-IN
+
X09-A/7
17
TA-SIG-GND
CN5
3/3
C8
B
16
R-REC-IN
+
15
BEAT-C
14
R/P(H=REC)
13
BIAS(H=BIAS ON)
NOR(H=NOR,
12
VH02 ONLY)
BI/II(L=TYPE I,
11
SJ3MD ONLY)
10
A/B(L=PLAY)
LINE-MUTE
9
(H=MUTE ON)
8
SOL
7
PHOTO
6
REC-R SW
5
CPM
4
REC-F SW
3
HALF SW
CrO2 SW
2
(SJ3MD ONLY)
1
PLAY SW
MDX-G3
Advertisement
