Panasonic PV-D301 Service Manual page 161

SERVO BLOCK DIAGRAM
MAIN C.B.A.
CYLINDER UNIT
FP6
18
34,35
CYLINDER
FP6
MOTOR 18
36,37
FP6
18
38,39 IC2001 (CYLINDER/CAPSTAN MOTOR DRIVE)
CYLINDER CYLINDER
FP6
PG HEAD FG HEAD
8
31
HALL
IC FP6
9
33
FP6
10
23
HALL
IC FP6
11
25
FP6
12
27
HALL
FP6
IC
13
29
FP6
61
18
FP6
V-REF
17
FP6
59
21
CAPSTAN UNIT
FP1
18
26
FP1
CAPSTAN
18
MOTOR 24
FP1
18
25
CAPSTAN
FP1
FG HEAD 39
17
HALL
IC FP1
38
18
FP1
37
19
HALL
IC FP1
36
20
FP1
35
21
HALL
FP1
IC
34
22
FP1
14
IC2003 (CYLINDER MOTOR DRIVE)
5 DRIVE 6
3 DRIVE 4
1 DRIVE 2
17 8 DRIVE 9
TORQUE
SATURATION 16 10 DRIVE 11
DETECT
15 12 DRIVE 13
7 14
LOGIC
CYL VM 14
18
LOWER
DRIVE 19
CONTROL
20
23
UPPER
DRIVE 22
CONTROL
21
6
TORQUE
7
COMMAND
1
53
TORQUE
COMMAND 55
48
47
TORQUE
DIRECTION 40
CONTROL
DRIVE 43
IC2002 (CAPSTAN MOTOR DRIVE)
32 5 DRIVE 6
TORQUE
SATURATION 31 3 DRIVE 4
DETECT
30 1 DRIVE 2
8 DRIVE 9
10 DRIVE 11
12 DRIVE 13
7 14
CAP VM 33
41
LOGIC
50
24
LOWER
DIRECTION
DRIVE 25
SWITCH
CONTROL
26
29
UPPER
DRIVE 28
CONTROL
27
49
IC6001 (SERVO MICROCONTROLLER)
TP6206 TP6205
FP1
75
CONTROL 2 REC CONTROL
HAED AMP
FP1
74
3
PB-ON
TP6202
AMP
S301
TO PB
76
22
TP BOARD CONTROL
( FOR EVF ( S301
CAP FG
ADJUSTMENT 24
19 CYLINDER ON (L)
33
68 AMP SCHMITT
TP6207
PULSE WIDTH
NOT USED D6201
MODULATION
67
69 V REF
PULSE WIDTH
34
MODULATION
TP6210
65
FG/ PG
TP6208
SEPARATOR
FG
66
20 CAP TORQUE LIMIT
21 CAP DIRECTION CTL
22 FORCED ACCELERATION
CYLINDER VM
UNREG
FROM/TO
CAPSTAN VM POWER SUPPLY
BLOCK DIAGRAM
TRIANGLE WAVE
CAPSTAN SW
ENVELOPE
100 ENVELOPE DET
DETECTOR
COUNT PG
SELECT
DOWN
CAPSTAN SPEED
COMPARATOR
CYLINDER/CAPSTAN
PHASE COMPARATOR
CYLINDER SPEED
COMPARATOR REC CONTROL
/TR MM
GENERATOR
FG
HEAD AMP
HEAD SW
SELECT
99 HEAD AMP SW
SIGNAL
SIGNAL
GENERATOR
GENERATOR
V LOCK PULSE
24 V-LOCK PULSE
GENERATOR
TP6201
23 HEAD SW
TO/FROM VIDEO
BLOCK DIAGRAM