Panasonic Omnivision PV-9661 Service Manual page 304

7.11. CAPSTAN STATOR / JUNCTION / LOADING MOTOR / AUDIO CONTROL HEAD SCHEMATIC DIAGRAM
CAPSTAN SERVO
LOADING MOTOR P.C.B.
TO MAIN
6
C.B.A. P6002
P2552
LOADING
M
MOTOR
LD-M(+) 2
P2551
LD-M(-) 1
CTL HEAD 7
CTL HEAD GND 8
AUDIO HEAD 5
AUDIO ERASE HEAD 3
AUDIO ERASE HEAD 4
AUDIO HEAD 6
5
VJBS0A23
JUNCTION C.B.A
TO MAIN
P2531
C.B.A.P6201
UNSW +14V 2
10
4 CAP ERROR
V-REF 11
CAP DIRECTION CTL 9
12
CAP TORQ.LIM
4
GND
5
UNSW +5V
13
CAP FG(+)
14
CAP FG(-)
GND 6
8
LD-M FWD(H)
3
LD-M REV(H) 7
1
LD-M (+)
LD-M (-) 3
C2532 C2533
22/16V
22/16V
C2531
R2531
2
22/16V 27
1/4W
VJBS0A25
1
A A B
AUDIO CONTROL HEAD P.C.B.
CONTROL HEAD
P1541
5
5 CTL HEAD
6 CTL HEAD GND 6
AUDIO HEAD
3
3 AUDIO HEAD
1 1
AUDIO ERASE HEAD
AUDIO ERASE HEAD
2
2 AUDIO ERASE HEAD
AUDIO HEAD
4 4
VJBS0A24
P2532 P2502
17 17
UNSW +14V
10
10 CAP ERROR
9 V-REF 9
CAP DIRECTION CTL
11 11
8 CAP TORQ.LIM 8
16 GND 16
19 UNSW +5V 19
7 CAP FG(+) 7
6 CAP FG(-) 6
14 GND 14
12 12
LD-M FWD(H)
13 13
LD-M REV(H)
18 LD-M (+) 18
15 LD-M (-) 15
20 MAIN COIL 1 20
1 1
MAIN COIL 2
3 3
MAIN COIL 3
5
5
21 21
MAIN COIL 1
2 2
MAIN COIL 2
MAIN COIL 3
4 4
FG HEAD UNIT
FG HEAD
CAPSTAN COIL
C D E
NOTE:
FOR SCHEMATIC DIAGRAM AND CIRCUIT BOARD LAYOUT NOTES,
REFER TO BEGINNING OF SCHEMATIC SECTION.
NOTE:
1. CAPSTAN STATOR UNIT IS SUPPLIED AS A CAPSTAN STATOR KIT ONLY.
HOWEVER, IC2501(AN3845SC) IS AVAILABLE SEPARATERY AS A REPLACEMENT PART.
2. WHEN INSTALLING THE IC2501 OR CAPSTAN STATOR UNIT, BE SURE TO APPLY
SILICON GREASE(VFK1301). REFER TO "CAPSTAN STATOR UNIT" OF
"DISASSEMBLY/ASSEMBLY PROCEDURES OF MACHANISM" SECTION.
CAPSTAN/LOADING
IC2501
MOTOR DRIVE
AN3845SC
C2508
LOADING
15 14
MOTOR
C2509
CONTROL
16 LOGIC 13
12
17
R2505
18 11
19 10
20 9
21 GND 8
DIRECTION
TORQUE
22 CONTROL 7
COMMAND
LOGIC
23 CAPSTAN 6
MOTOR COIL C2506
DRIVE
24 5
UPPER LOWER
25 4
DRIVE DRIVE
C2504
CONTROL
CONTROL
26 3
DIRECTION POSITION
27 2
DETECT SIGNAL
C2507
PROCESS
28 1
VCC
R2501
C2517
R2502
C2510
F G
55
4 4
3 3
H2- VH-
H1- VH-
VH+ H1+
VH+ H2+
Q2503
Q2501
Q2502
1 2 1 2
HALL
HALL HALL
TRANSISTOR
TRANSISTOR TRANSISTOR
CAPSTAN STATOR
VJBS2006
H I J
PV-9661 / PV-9662
4
3
H3- VH-
VH+ H3+
1 2