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SLV-ED8/ED9
Q Q
3-4. SERVO/SYSTEM CONTROL BLOCK DIAGRAM
3 7 6 3 1 5 1 5 0
MTR 12V
VCC
OUTPUT
DRIVER
DRUM VS
OUTPUT
M
DRIVER
HALL
MATRIX
DEVICE
DRUM PG
PG
FG
DRUM FG
M901
DRUM MOTOR
SW 5V
VCC
U+
CTL-REF
REF
U–
HALL
V+
DEVICE
V–
MTR 12V
W+
VM
W–
U
CAP VS
VS
V
CAP RVS
T E
FRC
W
L
1 3 9 4 2 2 9 6 5 1 3
CAP TRQ PWM
TL
CAP FG
CAPSTAN
FG
M902
CAPSTAN
MOTOR
CTL
HEAD
M903
CAM MOTOR
M
w w w
05
MA-325 BOARD (3/5)
(SEE PAGE 4-15,4-17,4-19)
MTR 12V
CN101
IC101
(1/2)
1
DRUM ERROR
INTEGRATOR
6
7
2
5
3
4
SW5V
CN102
PS100
1
4
+
MTR 12V
IC101
(2/2)
7
CAP ERROR
INTEGRATOR
3
1
+
5
2
–
D141
2
6
3
CN161
CTL (X)
1
IC021
CTL (Y)
3
CTL AMP
1
3
D5V
IC001
IC001
(1/2)
COMPARATOR
REF AMP
6
–
+
1
5
3
+
–
2
IC161 $£ REC/PB
CTL CHECK
S101
REC PRF
2.4Vp-p (16MHz)
IC130
CAM MOTOR DRIVE
CN103
CAM (+)
3
10
4
CAM+
IN2
CAM (+)
2
CAM (–)
3
1
2
CAM–
IN1
S100
CAM ENCODER
x
a o
y
MODE SWITCH
.
i
MECHA
POSITION
3-7
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IC161
SERVO/SYSTEM
CONTROL
74
DRUM DA
SO
46
IC161 ^•REC/PB
ASURA CS
44
ASURA RESET
40
IC161 1REC/PB
68 DRUM PG
5.0Vp-p (2V)
60
RF ENV
SCKI
81
SOI
80
5.1Vp-p (2V)
1
RE SWP
69 DRUM FG
SI
45
SW5V
IC161 ^ªREC/PB
47
S CLK
66
V SYNC
QVD
4
30
SCL 0 (I2C)
5.0Vp-p (360Hz)
SDA 0 (I2C)
28
2
73
AF REC P
CAP DA
AF REC
96
35
CAP STOP
AF ENV
59
99 STEP PLS
100
AF SWP
Q
Q
72 CAP RVS
3
7
6
A MUTE
31
84 CAP TRQ PWM
FULL ERASE
36
IC161 &º REC/PB
70 CAP FG
TV/VTR
26
AV ADJ
56
5.1Vp-p (1kHz)
7
REC CTL
77 REC COUNT
8
CTL RESET
IC161 ^¶PB
(2/2)
T SENS
61
7
67
PB CTL
S SENS
62
Q001
GAIN
5.3Vp-p (2V)
SW
92 CTLHYS HIGH
T/S LED
32
15 C IN (REC PRF)
42
XTAL
X161
16MHz
43
EXTAL
T REEL FG
64
9
CAM
63
S REEL FG
u 1 6 3
22
MODE1
21
MODE 2
20
MODE 3
19
MODE 4
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2
4
8
9
9
CN105
24
SI 0
5
ASURA CS
MODE
25
ASURA RESET
CONTROL
(SEE PAGE 3-14)
7
SCLK
8
SO 0
F ENV
SCK I (SSB)
VIDEO 1
(SEE PAGE 3-4)
SO I (SSB)
RF SWP
SI
SCLK
VIDEO 2
COMP SYNC
(SEE PAGE 3-6)
QVD
V CLK (IIC)
VS DATA (IIC)
DATA (IIC)
CLOCK (IIC)
AF REC P
AF REC
AUDIO
(SEE PAGE 3-10)
AF ENV
AF SWP
3
1
5
1
5
0
8
9
A MUTE
FULL ERASE
TUNER
TV/VTR
(SEE PAGE 3-11)
JS161
SWP ADJ
IC161 7REC
JS162
5.0Vp-p (2V)
Q101
T. SENS
D102
T/S LED
Q100
T. SENS
Q111
LED
DRIVE
SW12V
PH100
T. REEL
m
c o
PH101
S. REEL
.
3-8
2
8
9
9
2
4
9
8
2
9
9
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