AY
BA
BC
BE
BG
AZ
BB
BD
BF
BH
2
1
3
5
7
4
6
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
R OUT
L OUT
A.GND
R IN
+12V
L IN
+5V
M.GND
D.+12V
BIAS
B.1/2
A/B.1
A/B.2
SOL
CMP
R.REC
F.REC
PACK
PLAY
PHOTO
VCC
22
REC.I/R
REC.O/R
21
REC.I/L
REC.O/L
20
B.1/2
REC SW
19
A/B
PB.I/R
18
120/70
PB.I/L
17
NF/R
VREF
16
EQ/R
B.IN/R
15
PB.O/R
B.IN/L
14
PB.O/L
IREF
13
EQ/L
GND
12
NF/L
1
2
3
4
5
6
7
8
9
10
11
5
REC
VREF
P/B
VCC
VREF
9
8
7
6
CTRL
P/B
VREF
REC
4
3
2
1
+IN1
6
7
8
9
NC
-IN1
OUT1
VCC
1
2
3
4
5
+IN2
GND
OUT2
-IN2
R715A
390
10K
R713A
R714A
10K
390
R716A
47P
C743A
47P
C742A
10K
R718A
100P
C732A
10K
R717A
100P
C733A
4.7K
R780A
1000u16
C724
+
100u16
C736
+
C709 4.7u50
+
100
R736A
C710 4.7u50
+
1.5K
R788A
R787A 1.5K
3300P
C738A
3300P
C739A
12K
R709A
0.01
C705A
1u50
C71
1
+
27K
R712A
2.2K
R723A
2.2u50
C714
+
27K
R711A
2.2K
R724A
1u50
C712
+
2.7K
R721A
2.7K
R722A
22u16
C737
+
18K
R720A
C735A 47P
220K
100u16
C722
+
R735A 22K
R703A 10K
R704A 10K
R710A
12K
C706A
0.01
220K
C734A 47P
2.2u50
C708
+
2.2u50
C707
+
R706A
R705A
C713
2.2u50
+
18K
R719A
47K
R775A
47P
C704A
180K
R702A
180K
R701A
470P
C702A
470P
C701A
47P
C703A
430
R708A
430
R707A
R779A 4.7K
4.7u50
C721
+
100
R731A
47K
R785A
4.7K
R784A
T701
0.022
C728A
10u16
C730
+
18K
R740A
18K
R739A
0.01
C729A
0.01
C726A
0.022
C727A
3.3
R741
3.3
R742
C725 10u16
+
2K
R744A
33K
R743A
R738
10
1K
R745A
4.7K
R747A
47K
R748A
100K
R749A
100K
R783A
10K
R782A
R774A
2.7K
6800P
C731
C723
100u16
+
R734A
1K
+
C715
10u16
560P
L701
10mH
C717A
R725A
R727A
15K
10K
+
10u16
C716
L702
10mH
R726A
10K
15K
R728A
R786A
10K
C718A
560P
22K
R752A
33K
R751A
R753A
10K
R750A
9.1K
R755A
4.7K
R760A
4.7K
R758A
68K
R759A
4.7K
R757A
4.7K
R756A
330
R789
47u25
C741
+
100
100
100
R769A
R770A
2.2K
R768A
47K
R767A
100K
R773A
10K
R762A
4.7K
R772A
47K
R771A
R766A
100
20
19
18
16
17
1
2
3
4
5
6
7
8
9
10
11
12
16
17
18
19
20
1
2
3
4
5
6
12
11
10
9
8
7
6
5
4
3
2
1
470
R.REC
F.REC
CrO2
PACK
SOLEMOID
GND
SENSOR
PLAY
M+
20K
VR702
20K
VR701
220P
C720A
220P
C719A
1
3
2
4
5
6
3.9K
R754A
R765A
R764A
R763A
+12V
+5V
+5V
+5V
+5V
+5V
+12V
+12V
+12V
+12V
+12V
BIAS OSC
10
R778A
10
R777A
+12V
+12V
Q712
Q703
+12V
+12V
+5V
10K
100K
2200P
C533A
15K
15K
820P
820P
R566A
C536A
R565A
R564A
R563A
10K
10K
C534A
2200P
R561A
R562A
+
22
26
28
A.GND
ROUT
27
24
A.GND
LOUT
25
A.GND
RIN
23
AVCC
LIN
21
PSWCK
LOADSW
19
20
DVDD
DVDD
17
18
D.GND
D.GND 15
16
C518
470u10
MD.ST
MDATA
D.GND
D.GND 13
14
DSTB
11
12
SEARCH
KDATA
9
10
DSCK
7
8
C513 47u10
+
1
3
PDOWN
RESET
6
5
BACKUP
4
1
M.DOUT
D.GND
DIGI.I
2
1
R519 1
R518 1
R517
R530
R525
4.7K
100K
R527A
4.3K
R526
47u10
C515A
+
C516
100u10
C514 2.2u50
R524 1.8K
+
R528A
+
R529
47
+
220u10
4.7K
DOUT
2
CDGND
1
PRTMD 14
CE
+5V
13
12
u.GND 11
UART2
UART1
10
9
MDRST
LIN
8
7
AGND
RIN
6
5
AGND
4
AGND
2
LOUT
3
ROUT
1
1
2
3
5
4
7
8
9
6
100K
C532
18K
R556A
R558A
C530A
820P
R568A
10K
3.3u50
3.3u50
C531
18K
R555A
R557A 100K
+
+
820P
C529A
R567A
10K
OUT1
-IN1
+IN2
GND
+IN1
-IN2
OUT2
VCC
22 1W
C526
R560A
1.5K
1.5K
9
8
4
5
6
7
8
9
10
11
12
20
1.5K
R546A
0.022
C519A
0.01
180
3.3u50
C528
+
3.3u50
C527
+
100
R569A
1.5K
R523
+8V
+8V
+12V
+8V
+8V
+6V
+8V
R531
4.7 1/4W
120
R553A
120
R554A
10u10
C502
+
10u10
C501
+
C517
+5V
+B
+8V
+5V
+5V
+5V
+5V
+5V
+B
220u10
C525
+
4.7K
R559A
10K
R520
R521
470
R522
C535A
11.5V
11.9V
REC: 0.7V
1.8V
5.0V
11.9V
10.9V
11.7V
9.7V
REC: 10.3V
REC: 9.1V
REC: 5.0V
12.2V
15.9V
12.8V
13.4V
5.0V
11.9V
11.3V
1.3V
3.7V
3.1V
3.7V
6.1V
7.7V
5.9V
5.0V
11.7V
6.7V
CN701
D702
Q703
Q702
Q701
Q705
Q706
Q713
D708
D705
Q707
Q714
Q715
D709
D703
D704
Q708
Q710
Q709
CN703
D706
CN702
M
ERASE
Rch
Lch
IC701 : BA3126N
IC702 : HA12219NT
IC703 : LA6458S
Q708
: 2SA984E
Q714
: 2SD2061E
Q710
: 2SB1205(S.T)
Q701,702,706,707,709,
: 2SC3330(S.T)
1N4004
MTZJ5.1B
D708
:
D703,704
D702,705,706
:
: 1SS133
2SC2274E
:
Q703
2SA1317
Q705,712
:
MTZJ13B
D709
:
Q712
PLAY/REC HEAD SW
(PB:ON, REC:OFF)
OPE.AMP
P.B/REC EQ.
R/P SWITCH
BIAS AVR
BIAS
OSC
ON/OFF
BIAS
SW
MOTOR
DRIVER
C
-CN1501
1/5
-CN405
2/5
BOARD
MDM-98
MAIN
ADJ.
BIAS
(Lch)
(Rch)
BIAS
ADJ.
711,713,715
Q711
SOL.
DRIVER
D501
CN502
D505
D502
CN504
CN501
Q501
Q503
Q502
Q504
Q505
MD-DVDD
REG.
REG.
MD-AVCC
A
E
D503
D
MAIN
2/5
-CN403
BOARD
-CN404
2/5
BOARD
MAIN
-CN203
2/5
MAIN
BOARD
IC702
IC701
IC703
CASSETTE BOARD
A
B
IC503
MD CONTROL BOARD
E
C
D
DESTINATION
U.S.A.
COUNTRY
K
ABB.
R753A
10K
CANADA
P
GENERAL MARKET
M
47K
UK
T
EUROPE
E
CAUTION: For continued safety, replace safety critical components only with manufacturer's recommended parts (refer to
parts list).
indicates 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 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 Corporation. Noise
reduction circuit made under license from Dolby Laboratories Licensing Corporation.
