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SERVO BLOCK DIAGRAM
CAPSTAN MOTOR ASS'Y
CAPSTAN
CAPSTAN
MOTOR
MOTOR
COIL
DRIVE
HALL
ELEMENT
POSITION
HALL
SIGNAL
ELEMENT
PROCESS
HALL
ELEMENT
CAPSTAN
FG HEAD
CYLINDER UNIT
P6202
7
PG
P6202
COIL
6
P6202
1
P6202
2
P6202
3
P6202
CYLINDER
4
MOTOR
AUDIO CONTROL HEAD UNIT
TV/VCR MAIN C.B.A.
P4092
P4002
5
5
CONTROL
HEAD
P4092
P4002
6
6
PIN
P6201
6
6
PIN
P6201
DIFFERENTIAL
7
7
AMP
PIN
P6201
5
5
PIN
P6201
3
3
IC6201 (CYLINDER MOTOR DRIVE)
15
PG/FG PULSE
18
GENERATOR
16
22
23
CYLINDER
14
MOTOR
25
DRIVE
20
IC6001 (SERVO MICROCONTROLLER)
94
95
PB-ON
V1
4 Vp-p
TP6206
+
-
POSITIVE PB
CTL SLICER
2 V
10 ms
V1
2 Vp-p
AMP
NEGATIVE PB
1 V
10 ms
TP6207
97
CTL SLICER
CAPSTAN DIRECTION CONTROL
74
V1
3 Vp-p
TP6203
SCHMIT
1 ms
2 V
86
D6201
D6202
AMP
87
TP6201
TP6209
INTEGRATION
76
PWM
CAPSTAN SPEED
COMPENSATOR
MIX
CYLINDER/ CAPSTAN
PHASE COMPENSATOR
MIX
V1
4.80 Vp-p
CYLINDER SPEED
1 V
0.5 ms
COMPENSATOR
PWM
PG/ FG
90
SEPARATOR
CAP TORQUE LIMIT
11
INTEGRATION
77
TP6208
TP6202
TP6003
REC CTL
ENVELOPE
AMP
9
DETECTOR
V-LOCK
SELECT
PULSE
13
GENERATOR
COUNT
DOWN
TP6205
PG
SELECT
18
REC CTL
/ TR MM
GENERATOR
56
HEAD SW
HEAD AMP
SIGNAL
CONTROL
GENERATOR
ROTARY
SIGNAL
SLOW
GENERATOR
/STILL
15
CONTROL
PV-C1324-K/PV-C1334W-K/PV-C2024-K
(FROM IC3001(40))
ENVELOPE VOLTAGE
(TO IC3001(13))
V-LOCK PULSE
V1
5 Vp-p
2 V
10 ms
(TO IC3501(1))
HEAD SW PULSE
(FROM IC3371(2))
VIDEO
(TO IC3001(49))
ROTARY SW
SERVO BLOCK DIAGRAM
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