A
B
D
F
H
J
C
E
G
I
2
1
3
5
7
4
6
6.4V
REC:0V
6.4V
6.5V
1.7V
1.7V
6.5V
6.5V
6.5V
6.5V
6.5V
6.2V
6.4V
7.0V
7.0V
6.2V
6.2V 7.0V
6.4V
6.5V
6.5V
6.5V
6.5V
6.5V
1.7V
1.7V
6.5V
6.4V
REC:0V
6.4V
CRO2/METAL:5.0V
NORMAL:0V
25.8V
5.1V
12.6V
12.9V
REC:4.8V
REC:0V
7.9V
7.3V
12.9V
9.8V
3.7V
1.3V
0.7V
3.7V
0.7V
1.3V
PLAY:12.9V
REC:0V
PLAY:0V
REC:5.0V
REC:4.4V
PLAY:0V
0.5V
0.8V
7.3V
0.6V
0.5V
0.8V
12.3V
12.3V
5.0V
11.6V
12.2V
PIN
1
2
3
4
5
6
7
8
9
18
17
16
15
14
13
11
12
10
PIN
NORMAL
CRO2
METAL
METAL
CRO2
NORMAL
1.9V
4.4V
3.2V
4.4V
2.4V
1.9V
2.6V
4.1V
3.2V
3.6V
12.9V
0V
12.9V
1.8V
2.9V
4.38V
2.3V
3.4V
1.7V
2.9V
2.64V
4.1V
12.9V
1.69V
MODE:RECORDING
IC8 VOLTAGE
7.0V
10u16
C229
+
C239 1u50
+
22u16
C209
+
C210
22u16
+
10u16
C233
+
10u16
C232
+
22u16
C234
+
C238 100u16
+
47u16
C21
+
C214 1u50
+
1u50
C114
+
C122 0.1u50
+
C124 0.1u50
+
C126 10u16
+
C130 0.1u50
+
C132 2.2u50
+
C131 2.2u50
C125 10u16
C121 0.1u50
+
+
1u50
C113
+
C123 0.1u50
+
C129 0.1u50
+
+
+
(
)
)
(
(
)
)
(
(
)
(
)
)
(
)
(
)
(
)
(
)
(
)
(
)
(
(
)
(
)
(
)
(
)
(
(
)
)
)
(
)
(
)
(
(
)
)
(
)
(
)
(
)
(
(
)
)
(
(
)
(
)
(
)
(
)
(
)
(
)
(
)
(
)
(
)
(
)
18
17
16
15
14
13
12
10
PROTECTION CIRCUIT
THARMAL DETECTING
POWER SOURCE
STABILIZING
+15V
DET.
ABSO.
DET.
PEAK
DET.
ABSO.
1
2
3
DET.
PEAK
4
VCA
11
DRIVER
PRE
7
VCA
COMPARATOR
5
6
GND
8
9
0.022
C225
220K
R219
0.01
C221
0.022
C227
R221 33K
C223 560P
33K
C228
0.022
0.022
C226
C222
0.01
220K
R220
C224
560P
R222
C230
10P
1
2
3
4
5
6
4
1
2
3
HX
L4
150P
C218
220P
C220
1
6
220P
4
C219
3
2
L3
EH
C217
150P
EH
4
6
L9
3
1
2
5
C231 0.01
0.01
C237
22K
R226
10 1/4W
R224
10
R223
1/4W
5600P
C236
R225 22K
C235 5600P
68
R233
4.7K
R235
K1
150K
R207
390P
C205
10u16
C203
+
R205
160
R203
0.022
C207
6.2K
1
2
4
3
5
160
R204
6.2K
R206
150K
R208
390P
C206
7
8
9
6
0.022
C208
10u16
C204
+
C201 680P
R201 150K
C202 680P
R202 150K
Q31,32
10mH
L7
220P
C215
15K
R211
15K
R212
10mH
220P
C216
L8
Q44
10K
R214
10K
R213
1K
R229
10
R230
22K
R227
10
R234
R228
5.6K
1/4W
1/4W
10
9
8
7
6
5
4
3
2
1
11
12
R218 1K
R217 1K
R216 10K
R215 10K
3.3K
R231
1K
R232
Q47,48
12 11
8
9
10
7
6
5
4
1
3
2
PLAY/REC
PLAY Lch
GND
PLAY Rch
REC Lch
REC Rch
BIAS Rch
BIAS Lch
BIAS
ERASE
EH GND
13V
1
2
3
4
5
6
GND
1
OUT1
2
Vz1
3
Vref
4
Fin
5
Rin
6
Vcc1
7
Vcc2
8
Vz2
9
OUT2
10
C20 0.1
10
R45
C18 0.1
R44 1K
R42 1K
R43 1K
1/4W
1
2
3
4
5
R109
3.9K
C107
6800P
NC
L1 MPX
1.5K
R107
R158 18K
56
E. VOL
E. VOL
71
1
80
VREF
77
78
79
1A
3
2
5
4
REF
VR3
VR2
74
75
76
VR1
GND
72
73
DAC
SBIT
67
GND
VR1
68
69
70
VR2
VR3
BIAS
65
66
DAC
SBIT
64
63
1A
VREF
60
62
61
58
59
57
REC OUT
8
7
6
10
9
B/C NR
DOLBY
12
11
VOL
RECT
EQ
LMA
+
–
SBIT
DAC
–
+
LMA
DAC
SBIT
REC OUT
B/C NR
DOLBY
54
55
51
52
53
RECT
VOL
EQ
49
50
C103
10u16
+
1u50
C105
+
R103 33K
1u50
C143
+
+
1u50
C154
+
C104
10u16
+
C106
1u50
+
C144
1u50
1.5K
R108
6800P
C108
3
2
1
4
R110
5
L2
NC
MPX
3.9K
39K
R105
39K
R106
R104 33K
C213 1u50
+
3300P
C211
3300P
C212
1.5K
1.5K
C118 2200P
C116 2200P
22K
R114
0.033
C112
220P
R112 2.2K
10mH
L6
R116 560
C110
C120 2200P
R126 10K
R130
R128 4.7K
C134 1u50
+
22K
R120
4.7K
R118
2.2u50
C128
+
1.1K
R122
R127 4.7K
C133 1u50
R125 10K
C119 2200P
C115 2200P
C117 2200P
R115 560
C127
R121
4.7K
R117
R119
22K
1.1K
2.2u50
+
C111
C109
0.033
220P
22K
R113
R111 2.2K
10mH
L5
3300P
R161 6.2K
0.1
12K
1.2K
R163
C146
R162
C145
47K
R160 120K
R164 22K
1
2
3
4
5
6
7
8
9
10
15
14
13
12
11
R210
R209
1
2
3
4
5
6
7
8
9
10
1
3
4
14
13
50
46
42
41
40
39
32
29
6
3
1
2
5
4
6
8
7
10
9
2
1
3
4
5
8
7
9
11
10
13
12
14
15
REC. R
MUTE +B
BIAS. R
13V
BIAS. L
CLK
DATA
ST
RESET
REC. L
LEV. L
5V
S. BUSY
S. DATA
D. GND
A. GND
PLAY. R
120/70
400/12.5k
PLAY. L
OSC ATT
OSC
LINE MUTE
REC MUTE
LEV. R
1
2
3
4
5
6
7
8
9
10
13
11
12
47K
R7
4.7K
R8
3.3K
R10
47K
R9
40
41
R6 100
R5 100
R3 100
R1 100
47K
R54
R2 100
100
R41
R40
100
65
64
67
66
78
77
76
59
75
74
45
44
52
51
48
43
42
46
61
38
39
50
49
47
REC F
HALL OUT
SOL
HALF
GND
12V
MOTOR +
MOTOR –
COM
MODE
CrO2
METAL
REC R
OPEN
CLOSE
COM
MOTOR –
MOTOR +
EH
Lch
Rch
GND
EH GND
+ERASE
(BRN)
+E (BRN)
-E (BLU)
+R (GRN)
-L (ORG)
+L (RED)
Lch
Rch
+12V
GND
(BLU)
-ERASE
-Rch
(YEL)
+Rch
(GRN)
(RED)
+Lch
-Lch
(ORG)
EARTH
(WHT)
-R (YEL)
GND (WHT)
1
2
3
4
5
EH
EH GND
Rch
Lch
GND
1
2
3
4
5
6
7
8
9
10
13
11
12
2
1
Rch
Lch
6
5
4
3
CLOSE
OPEN
COM
MOTOR -(CCW)
MOTOR +(CW)
FEW REC
HALL OUT
SOL
HALF
GND
12V
MOTOR +(CW)
MOTOR –(CCW)
COM
MODE
CrO2
METAL
REV REC
DOLBY
HX PRO
ERASE OSC
Q45
Q46
D33
Q44
Q33
Q31
Q32
IC7
(1/2)
(2/2)
IC7
PLAY
MUTE
PB EQ
RELAY SELECT.
PLAY/REC
D32
Q41
Q43
Q42
EH CONT.
Q48
Q47
CONT.
BIAS
CN12
CN11
CN5
D18
D20
CN6
Q24
Q23
Q27
Q28
Q29
Q30
D22
CPM
CONT.
Q6
Q8
CONT.
SOLENOID
Q7
Q9
D8
D9
CN10
CN4
MOTOR
DRIVE
CN2
CN3
CN9
Lch
ERASE
HEAD
R/P HEAD
Rch
PHOTO REFLECTOR
MOTOR
S6
S5
S4
S3
S2
S1
SOL
TRAY
MOTOR
S8
S7
Lch
Rch
IC8
(X28-2932-71) (C/5)
IC6
(X28- ) (B/5)
R/P/E HEAD
HEAD PCB
MECHANISM (D40–1574 –05)
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.
X-SE7(K)
PCB/SD(
97.11.29
4:19
AM
y [ W
3
www.freeservicemanuals.info
1/7/2013
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