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P
Q
(X28-3130-21)
IC1
: HA12230NT
Q1,2
: 2SB1424(Q,R)
1
Q3
:
DTC143TSA or
UN4216
Q4
: KRC103M or
UN4212 or
DTC124ESA (V Type)
Q5-7,19
: DTC124EUA or
UN5212
R23
Q8
: KTC3205 or
1M
2SC3940A(R,S)
Q9,10
: KTC3199(Y,GR) or
2SC2785(F,E)
Q15-18
: RK7002
R21
1M
D1,2
: 1SS133 or
2
HSS104A
D4
: S5688B(TPB5)
CASSETTE
MECHANISM ASSY
(D40-1716- 5)
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
ERASE
4
6
6
BIAS (Rch)
SOL
5
CN2
SOL
2.2K
12
12
PHOTO
11
11
7
PLAY-SW
10
10
1
CPM+
9
9
MATSUSHITA
NC
8
8
MTR
NC
7
7
NC
6
6
COMMON
5
5
CrO2-SW
6
4
4
2
PACK-SW
3
3
3
REC-F-SW
2
2
4
REC-R-SW
1
1
6
7
R
S
R105 10K
PLAY:0V
Q19
REC:4.6V
W18
Q17
Q18
R24
1M
Q15
Q16
R22
1M
IC1
PLAY : 4.0V
REC : 8.0V
R1
220K
C1
680P
L2 10mH
R16
C16 270P
15K
L1 10mH
R15
C15 270P
15K
L3
OSC
BIAS (Lch)
PLAY:8.3V
STOP:8.7V
Q1
+B
R119
Q2
47K
+B
R118
47K
PLAY:8.2V
STOP:8.7V
PLAY:4.8V
Q4
STOP:0V
Q3
CAPSTAN
CONT.
T
U
+B
8.9V
C100 +
100u10
R7 7.5K
11
10
9
PLAY : 0V
18
REC : 4.6V
PB/REC
AMP
C4
8200P
PLAY : 4.0V
REC : 8.0V
R2 220K
C2 680P
R8
7.5K
C14
10u50
+
PLAY : 4.5V
C13
REC : 4.2V
10u50
+
R113
10 1/4W
REC:4.5V
REC:8.9V
+B
REC
Q8
SW
D2
Q9
Q6
Q7
NOR:4.2V
Q10
NORMAL
SW
D4
+9V
SOLENOID
CONT.
V
W
RECORDING LINE
R100
SIGNAL LINE
+9V
4.7 1/4W
GND LINE
+B
B LINE
CAUTION: For continued safety, replace safety critical components only with manufactur-
er's recommended parts (refer to parts list).
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 circuit) before the
appliance is returned to the customer.
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 instruments used or on the product. Bias circuit DC voltage is measured while
in the record mode.
DOLBY and the double-D symbol are trademarks of Dolby Laboratories Licensing Corpo-
ration. Noise reduction circuit made under license from Dolby Laboratories Licensing Cor-
poration.
E1
+9V
9.0V
R25 1K
20
C21 4700P
R26 1K
20
C22 4700P
+9V
C11
R9
C7
4.7u50
4.7K
10u50
18
+
L4
10uH
REC:4.1V
C12
R10
C8
Q5
4.7u50
4.7K 10u50
+
BIAS
CONT.
14
13
12
R102 1K
11
+9V
R103 100
10
R104 10K
9
8
7
6
5
4
3
2
1
RXD-M33V (2/4)
Y39-4050-20
X
Y
indicates safety critical components. For
CN1
23
TA +9V
22
L-PLAY-OUT
21
TA-RET-GND
20
R-PLAY-OUT
TA +9V(MECHA)
19
(SJ3MD ONLY)
18
L-REC-IN
+
X29-
17
TA-SIG-GND
CN203
3/4
C
AI-3
16
R-REC-IN
+
15
BEAT-C
14
R/P(H=REC)
13
BIAS(H=BIAS ON)
12
NOR(H=NOR)
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
RXD-M33V
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