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10.7. SERVO BLOCK DIAGRAM
AUDIO CONTROL HEAD UNIT
HEAD AMP C.B.A.
CONTROL
HEAD
P4092
5
P4092
6
P4091
5
P4091
6
P6202
5
P6202
2
P2601
5
P2601
2
CAPSTAN STATOR C.B.A.
CAPSTAN
COIL
HALL
TRANSIS-
TOR
IC2501 (CAPSTAN MOTOR DRIVE)
POSITION
SIGNAL
PROCESS
DIFFER-
ENTIAL
AMP
HALL
TRANSIS-
TOR
HALL
TRANSIS-
TOR
GND
MR HEAD
Q2501
Q2502
Q2503
4
3
6
5
2
1
25
P2502
9
P2502
4
P2502
10
P2502
8
P6201
9
P6201
4
P6201
10
P6201
8
24
22
10
7
12
86
85
+
-
PB-ON
IC6001 (SERVO MICROCONTROLLER)
POSITIVE PB
CTL SLICER
AMP
CAPSTAN DIRECTION CONTROL
SCHMIT
AMP
COUNT
DOWN
NEGATIVE PB
CTL SLICER
SELECT
PG
SELECT
PWM
MIX
CAPSTAN SPEED
COMPENSATOR
CYLINDER/ CAPSTAN
PHASE COMPENSATOR
MIX
CYLINDER SPEED
COMPENSATOR
PWM
REC CTL
/ TR MM
GENERATOR
HEAD AMP
CONTROL
ROTARY
SIGNAL
GENERATOR
HEAD AMP
SELECT
SIGNAL
GENERATOR
PG/ FG
SEPARATOR
FORCED ACCELERATION
HEAD SW
SIGNAL
GENERATOR
SLOW
/STILL
CONTROL
TP6202
INTEGRATION
INTEGRATION
TP6211
CAP TORQUE LIMIT
(TO IC3501(32))
HEAD AMP SW
(FROM IC3501(33))
ENVELOPE DET
(TO IC3001(49))
ROTARY SW
(FROM IC3001(14))
V-SYNC
(WITH 4 HEAD)
(TO IC3501(1))
HEAD SW PULSE
TP6205
(TO IC3001(13))
V-LOCK PULSE
(FROM IC3001(40))
ENVELOPE
VOLTAGE
TP6003
ENVELOPE
DETECTOR
V-LOCK
PULSE
GENERATOR
REC CTL
AMP
9
52
4
97
89
53
95
94
93
10
TP6203
TP6201
TP6209
TP6207
100
62
30
29
81
31
24
TV/VCR MAIN C.B.A.
IC2601 (CYLINDER MOTOR DRIVE)
HALL
IC
PG/FG PULSE
GENERATOR
CYLINDER
MOTOR
DRIVE
CYLINDER
MOTOR
P6202
9
P6202
7
P6202
10
P6202
11
P6202
12
7
6
1
2
16
4
9
HEAD AMP C.B.A.
CYLINDER UNIT
P3501
4
P3501
6
P3501
3
P3501
2
P3501
1
P2601
9
P2601
7
P2601
10
P2601
11
P2601
12
CAPSTAN
MOTOR
DRIVE
2
3
IC2505
PVQ-1310 / PV-C1320 / PV-C1330W / VV-1300 / VV-1310W / PV-C1340 / PV-C1350W / PV-C2010 / PV-C2020 / PV-C2030W / VV-2000 / PV-C2060
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