L
L
L
L
L
H
H
C7507
5V
N.SW
5V
N.SW
IC7503
2
1
RESET
19 VEE
UNREG -29V
Q1001
BUFFER
5V
N.SW
A.DUB
S7509
S7515
STOP
POWER
S7506
EXT LINK
S7508
5V
N.SW
S7505
EJECT
REC
S7501
5V
N.SW
S7502
CH DOWN
T.REC
S7513
S7514
FF
A4
7
5V
N.SW
POWER SW 43
5V
N.SW
TL2502
TL2503
REW
S7512
S7511
PLAY
PAUSE
S7503
S7504
CH UP
48
HEATER (-)
HEATER (+)
FG OUT
CAPSTAN
103
TW2015
TIMER DISPLAY
F+
F+
Q1006
POWER
FROM
DP7501
1
2
F-
F-
44
45
39
33
23
5
IC7501
|
36 SEG1
18 SEG18
|
11 GRID1
17 GRID7
6 A5
5 A2
CS
SERIAL CLOCK
SERIAL DATA
3
2
1
FIP CS
S.CLOCK
S.DATA OUT
S.DATA IN
92
RESET
52
IR
IC7502
3
1
RECEIVER
IR
77
5V
N.SW
IC7504
RESET
2
1
P.FAIL
76
BACK UP 5V 33
QR1001
FIP
X6002
X6001
32KHz OUT 35
32KHz IN 34
20MHz OUT 32
20MHz IN 31
HEAD
CTL
6
P4003
5
P4003
112 CTL HEAD (+)
CTL HEAD (-)
111
TL6012
TL6013
T-REEL PULSE
S-REEL PULSE
5V
REG
LED
SENSOR
D1501
SENSOR
PHOTO
TAKE UP
Q1501
SENSOR
PHOTO
SUPPLY
Q1502
TAB SW
SAFETY
S7507
IC1501
(T-REEL SENSOR)
2
1
3
IC1502
4
(S-REEL SENSOR)
5V
REG
2
1
3
4
SAFETY TAB
65
SUPPLY PHOTO
13
TAKE-UP PHOTO
14
CYLINDER STATOR UNIT
MAIN COIL 3
MAIN COIL 1
MAIN COIL 2
IC
HALL
P2901
5V
REG
14V
REG
VH+
HE+
HE-
GND
M3
M1
VM
M2
2
4
8
5
3
9
1
6,7
P2501-8
P2501-6
P2501-2
P2501-5
P2501-7
P2501-1
P2501-3,4
P2501-9
(CYLINDER MOTOR DRIVE)
IC2501
6
7
SCHMIT
DRIVE
MOTOR
AMPLIFIER
DIFFERENTIAL
CONTROL
TORQUE
PG/FG
9
4
TORQUE
ERROR
CYLINDER
80
SW
MODE
S1501
4
3
2
1
POSITION SW1
46
44 POSITION SW3
POSITION SW2
45
EX.FF/REW
69
TW2002
CTL OUT
114
FG HEAD
CAPSTAN
R0206
CAP FG5V
4
P2501
P0201
FG IN
CAPSTAN
104
UNLOADING
LOADING
FORWARD
REVERSE/
CAPSTAN
TORQUE
ERROR
CAPSTAN
LIMIT
CURRENT
(SYSTEM CONTROL/SERVO IC)
IC6001
66
67
1
79
83
L
PIN 16
L
H
H
L
PIN 15
H
MODE
L
INPUT
OUTPUT
L
H
L
PIN 19
OPEN
H
REWIND
FORWARD
STOP
BRAKE
TL0201
H
(CAPSTAN MOTOR DRIVE)
IC0201
2
P1501
1
H1
8
P0201
P2501
9
P0201
P2501
H2
P1501
L
H3
MOTOR
LOADING
21
19
LOGIC
CONTROL
OPEN
L0201
MOTOR
CAPSTAN
L
9
6
1
2
24
22
25
3
DRIVE
MOTOR
DIRECTION
TORQUE
AMPRIFIER
DIFFERENTIAL
PIN 21
CONTROL
TORQUE
PROCESS
SIGNAL
POSITION
5
4
AMP
EC
AMP
TL
14V
REG
16
P0201
P2501
11
15
P0201
P2501
12
18
26
7
10
12
P0201
P2501
3
1
P2501
P0201
P0201
P2501
2
Summary of Contents for NV-SJ420EG
Page 24: ...10 2 CASING PARTS SECTION 24 ...
Page 25: ...10 3 PACKING PARTS SECTION 25 ...
Page 26: ...11 REPLACEMENT PARTS LIST 26 ...
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