Panasonic PV-D4742 - Page 147

CAPSTAN MOTOR ASS'Y
MR HEAD
CN1
3
HALL
IC
CYLINDER
MOTOR
CN2
4
CN2
1
CN2
2
CN1
7
CN2
5
CN2
6
CN2
7
CN1
8
CYLINDER UNIT
CYLINDER
PG PULSE
GENERATOR
CAPSTAN FG
PULSE GENERATOR
CYLINDER
MOTOR
DRIVE
MOTOR
POSITION
DET
PG
FG
CAPSTAN
MOTOR
COIL
HALL
ELEMENT
HALL
ELEMENT
HALL
ELEMENT
CN1
9
CN1
1
CAPSTAN
MOTOR
DRIVE
DIFFERENTIAL
AMP
POSITION
SIGNAL
PROCESS
AUDIO CONTROL / ERASE HEAD UNIT
CONTROL
HEAD
P4092
5
P4092
6
P4002
5
P4002
6
P6201
8
P6201
3
P6201
9
P6201
1
75
74
+
-
+
-
+
-
PB-ON
IC6001 (SERVO MICROCONTROLLER)
POSITIVE PB
CTL SLICER
CAP REV(H)/ STOP(M)/ FWD(L)
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
HEAD SW
SIGNAL
GENERATOR
TP6202
INTEGRATION
INTEGRATION
(TO IC3001(50))
HEAD AMP SW
(FROM IC3001(33))
ENVELOPE DET
(TO IC3001(28))
ROTARY SW
(TO IC3001(49))
HEAD SW PULSE
TP6205
(TO IC3001(93))
V-LOCK PULSE
(FROM IC3001(20))
ENVELOPE
VOLTAGE
TP6003
ENVELOPE
DETECTOR
V-LOCK
PULSE
GENERATOR
REC CTL
AMP
TP6204
34
65
76
21
67
33
TP6203
TP6206
TP6201
TP6209
TP6207
+5V
1/2 Vcc
100
99
98
23
MAIN C.B.A.
72
69
70
24
85
(FROM IC3001(5))
V-SYNC
50
P6201
7
TP6208
2 V
10 ms
V1
4.20 Vp-p
0.5 V
10 ms
V1
1.93 Vp-p
1 V
0.5 ms
V1
4.50 Vp-p
1 V
5 µs
V1
2.500 VDC
2 V
5 µs
V1
5.12 Vp-p
1 V
0.5 ms
V1
4.80 Vp-p
5 V
5 ms
V1
5.18 Vp-p
SERVO BLOCK DIAGRAM
SERVO BLOCK DIAGRAM
PV-D4742