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A
B
MAIN UNIT
1
A DECK
CN101
1
Lch
Lch
1
Lch
2
GND
GND
2
Rch
3
Rch
Rch
3
0V
-
1
M(-)
MOTOR
+
2
M(+)
TP1
2
1
CN102
MOTOR
3
MOTOR
R103 10
S1
SW
Lch+
5
4
+B
A
Lch-
4
PLAY
5
PLAY
S2
SW
GND
3
6
+B
2
Rch-
2
TAPE
7
PLAY
S3
(120uS/
Rch+
1
8
+B
R104
70uS)
10
TP2
2
1
B DECK
5
Lch(+)
Lch
4
Lch(-)
3
GND
2
Rch(-)
Rch
1
Rch(+)
1
E(+)
ERASE
2
E(-)
3
REC
3
+B
SW
S4
4
REC
MOTOR
5
+B
SW
S5
6
MOTOR
PLAY
7
PLAY
B
(MUTE)
S6
8
GND
+
1
M(+)
MOTOR
-
2
M(-)
TRAP COIL
L105
10mH
C143A
BIAS
220P
(Lch)
L106
10mH
4
C144A
2SA733
TRAP COIL
BIAS
220P
(Rch)
2SC2001
T1 (105kHz)
2SC2878A
6
1
2SC945
CN103
5
2
E(+)
1
R175
4
3
1
E(-)
2
7
TP3
BIAS OSC
2
1
C146
COIL
330u16
+
REC
6.0V (NOR)
3.6V (HI)
DTC114TS
5
DTC124ES
DIGITAL LINE
DTC144ES
SIGNAL LINE
GND LINE
DTC114YS
6
CXA1115BP
UPC1330HA
LA3246
7
C
D
+
+
+
+
P.B LEVEL ADJ
L101
R113
47mH
4.7K
C115
+
C107
R115
4.7u50
0V
680P
C111
47K
0.01
C105
R117
Q103
Q105
680P
10K
4.1V (70uS)
A PLAY:
0V (120uS) 6.3V
0V
0.6V
2.5V
9.9V (NOR)
Q101
A
B
P.B AMP
IC101
0V
Q104
Q106
0.6V
2.5V
A PLAY: 4.1V
C108
B PLAY: 0V
C114
680P
0.1u50
C106
C112
+
680P
0.01
L102
R114
C116
47mH
4.7K
4.7u50
+
+
0V
6.3V
A PLAY: 0V
B PLAY: 2.5V
HEAD SELECTOR
IC102
Q139
R157
A PLAY:
2.2K
A PLAY:
10.4V (NOR)
13.3V
R159
10K
Q102
Q109
0V
0V
0V
0V
REC: 4.0V
PLAY: 0V
12.3V
R160
10K
+
+
R158
1K
13.9V
R191
2.2K
SW101-1
TAPE SELECT
SW
1
4
1
4
2
5
2
5
3
6
3
6
NOR. (120uS)
Q132
R176
HIGH (72uS)
2.2
R177
2.2
Q133
BIAS OSC
R182
47
1/4W
13.7V
R192
C160
2.2K
4.7u50
+
R178
REC, VCC
180 1W
REC/PLAY UNIT A
REC/PLAY UNIT B
CN106
6
6
5
5
GND
4
4
+12V
3
3
+
+15V
2
2
C188
1
1
4.7u50
+
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
CN104
CN105
A
B
CAUTION: For continued safety, replace safety critical
MC7812CT
components only with manufacturer'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.
E
F
TP
PLAY:
L
4.2V
+
REC: 0V
G
C129
4.7u50
R
+
R127
MPX FILTER
150K
Q107
L103
+
1
6
C125
R131
IC103
1u50
2.4K
2.6V
2
+
C127
2.0V
3
4
4.7u50
6.7V
5.5V
+
6.7V
1.2V
6.8V
7
MPX FILTER
L104
-
ATT1
SC
+
1
6
C126
R132
2
ATT2
2.0V
1u50
2.4K
+
+
ATT3
3
4
ATT3
2.6V
Q108
7
ATT2
R128
150K
-
ATT1
SC
+
Q110
+
C130
6.7V
6.7V
1u50
6.8V
+
+
R133
R138
+
+
5.6K
150 1/4W
+
13.1V
12.7V
Q124
DOLBY
Q118,119
R171
R172
ON: 0V
C139
1M
1M
REC
OFF: 4.6V
D107
47u16
12.7V
AMP
1.1V
SW101-3
+
Q119
Q118
1.1V
REC: 7.2V
0.6V
0.6V
DUB: 0V
Q125
PLAY: 0.5V
+
+
Q111
R165
10K
C140
47u16
D108
+
DUB:
REC: 13.7V
13.7V
REC, VCC
C159
R195
Q120
4.7u50
15K
R201
3.3K
+
Q122
C163
R199
10u50
330
REC
REC
REC: 13.7V
EQ.
+
MUTE
PLAY: 2.5V
1.4V
C161 +
0.8V
REC: 0V
PLAY:
Q130
REC
33u16
2.4V
LEVEL
(Lch)
R204
+
10K
D111
+
REC: 13.7V
PLAY: 1.8V
REC: 13.1V
Q121
PLAY: 12.6V
R202
+
3.3K
D112
REC
LEVEL
C162
REC
(Rch)
33u16
0.8V
D113
MUTE
+
1.4V
C164
R200
10u50
330
13.3V
Q123
+
REC
EQ.
R196
15K
13.9V
R118
270 1/4W
CN107
7
7
6
6
5
5
4
4
3
3
REC, VCC
2
2
1
1
IC101
: LA3246 or CXA1115BP
Q101
IC102
: uPC1330HA
Q102,109
IC103
: CXA1101P
Q103-106
IC104
: MC7812CT
Q107,108,110,111,
113-125,136,137
Q128-130
Q131
Q132,133
The DC voltage is an actual reading measured with a high
impedance type voltmeter with a cassette loaded at
indicates safety critical components. For
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.
G
H
R OUT
5
R IN
4
GND
3
C191
Q136
L IN
OUTPUT AMP
4.7u50
2
+
L OUT
1
R122
FW108
27K
R121
R139 47K
27K
JK101
DOLBY
+
Lch
(B) NR
OUT
C137
4.7u50
Rch
+
+
0.4V
6.7V
R119
27K
Lch
R120
DET
27K
Q134
R145
Rch
1.8K
R150
39K
SG
LINE
5
MUTE
GND
4
Q135
R146
DET
6.3V
1.8K
LED
VCC
LEVEL
3
Q137
DUB.
6.7V
2
0.4V
+
+
REC
9.3V
1
OUTPUT
+
AMP
13.9V
N.R
DUB.
SW101-2
1
4
1
4
2
5
2
5
3
6
3
6
REC: 20.0V
PLAY: 21.3V
Q129
Q113,129
MUTE
D120
R228
CONTROL
6.8K
A PLAY: 0V
OTHER: 13.9V
A PLAY
0.6V
Q113
R218
C171
SW
Q115
REC: 20.0V
22K
10u50
R229
PLAY: 21.3V
+
C167
R209
Q114
15K
10u50
6.8K
+
+
A PLAY:
0.7V
R220
D119
10K
R225
+
C169
10K
C168
4.7u50
D116
47u16
+
Q128
REC
REC: 0V
A PLAY:
SW
PLAY: 13.2V
13.9V
21.1V
REC: 20.5V
13.9V
+15V AVR
FR240
PLAY: 22.0V
11.1V
+12V AVR
2.2 1/2W
1.1 or (2,2Ωx2)
Q117
Q131
D129
11.8V
R235
AC35.6V
+
330
D128
14.4V
+
+
+
+
2
+
D130
+
21.3V
FR239
1.1 or (2,2Ωx2)
D131
3
1
12.2V
IC104
: DTC144ES
Q134,135
: 2SC2878A
D101
: MTZ6.2B
: DTC124ES
Q139
: DTC114YS
D102-111,111A,112-123
: DTC114TS
: 1N4148M
D124
: MTZ12C
: 2SC945(P,Q)
D125
: RD15E(B2)
: 2SA733(P,Q)
D126,127
: 1SS142T
: 2SD313E
D128-131
: 1N4002
: 2SC2001(L)
D133
: 1SS176
DOLBY and the double-D symbol are trademarks of Dolby Laboratories
Licensing Corporation. Noise reduction circuit made under license from
Dolby Laboratories Licensing Corporation.
Y26-4400-10
I
J
REC LEVEL UNIT
5
4
METER LED UNIT
3
2
VOLTAGE:
LED DRIVER
IC601
D601-603 (ON)
1
REC LEVEL
9.8V
10.3V
10.3V
1.2V
0V
-
5
0
+3
+5
+
IN
FW102
5
13.7V
4
Q601
R608
Q602
1.8K
3
D607 DUBB
R603
820 1/4W
2
D606 REC
R604
1K 1/4W
1
13.9V
IC601
: BA6124
D608
: 1N4148M
Q601
: 2SC945(P,Q)
D601-605
: B30-2469-08
D606,607
: B30-2511-08
Q602
: 2SA733(P,Q)
(M,Y) TYPE
POWER UNIT
MAIN UNIT
PT1A
BLU
SW1
(230V)
AC
1
YEL
(115V)
GND
2
AC OUTLET
AC
T.F
3
GRY
FW101A
AC110-120/220/230-240V
50/60Hz
+
1.5V
-0.6V
Q116
R232
(X,E) TYPE
4.7K
+
POWER UNIT
+
PT1B
G B
-16.6V
AC
1
GND
AC240V
2
60Hz
AC
T.F
3
P B
FW101C
(K,P) TYPE
FR238
POWER UNIT
AC OUTLET
PT1
P
AC
1
1
GND
2
2
AC
T.F
3
3
G
FW101
SW101-4
POWER
CT-201/KXF-W1010 (K)
CT-201/KXF-W1010
12.0V
+
+
230V
115V
AC120V
60Hz
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