EZMPS300F12
IC2505
4
3
1
2
Q2502
4
3
1
2
Q2503
4
3
1
2
Q2501
0.1
C2510
0.01
C2504
0.01
C2507
0.1
C2517
C2505
0.1
C2509
0.1
C2508
0.01
C2506
1000P
C2519
2200
R2505
1
R2501
1
R2502
C2511
0.1
C2520
2.2
C2522
2.2
C2521
2.2
C2523
C2524
C2525
IC2501
AN3845SC
P2502
CAPSTAN COIL
VH+
VH+
H3-
H1+
H1-
H2+
H2-
H3+
VH+
VH-
VCC OUT1 GND
VH-
VH-
LD-M(-)
M
LOADING MOTOR UNIT
LD-M(+)
P2503
LOADING
MOTOR
2
1
CAPSTAN/LOADING
MOTOR DRIVE
TORQUE
COMMAND
POSITION
SIGNAL
PROCESS
VCC
LOADING
MOTOR
CONTROL
LOGIC
DIRECTION
CONTROL
LOGIC
CAPSTAN
MOTOR COIL
DRIVE
UPPER
DRIVE
CONTROL
GND
LOWER
DRIVE
CONTROL
DIRECTION
DETECT
12
11
10
9
8
7
6
5
3
1
2
4
2
A
G
B
3
H
C
4
D
5
E
1
A
F
HALL
TRANSISTOR
HALL
TRANSISTOR
HALL
TRANSISTOR
CAPSTAN SERVO
1
14
12
13
11
10
15
16
17
18
19
20
21
22
23
24
2
3
4
5
6
7
8
9
25
26
27
28
3
4
1
2
GND
CAP FG(-)
CAP DIRECTION
CAP FG(+)
CAP TORQ.LIM
LD-M FWD(H)
V-REF
LD-M REV(H)
CAP ERROR
UNSW +5V(SYS.CTL)
UNSW +5V(SYS.CTL)
SW +14V
Z
1/8W
1/8W
Z
Z
Z
(MR HEAD)
FOR SCHEMATIC DIAGRAM AND CIRCUIT BOARD LAYOUT NOTES,
REFER TO BEGINNING OF SCHEMATIC SECTION.
NOTE:
WHEN INSTALLING THE IC2501(AN3845SC) OR CAPSTAN STATOR C.B.A., BE SURE
TO APPLY SILICON GREASE(VFK1301). REFER TO "CAPSTAN STATOR C.B.A."
OF MACHANISM SECTION IN DISASSEMBLY/ASSEMBLY PROCEDURES.
NOTE:
THE FOLLOWING PARTS ON THE CAPSTAN STATOR C.B.A. ARE NOT SUPPLIED SEPARATELY.
PLEASE ORDER AND REPLACE WITH THE CIRCUIT BOARD ASSEMBLY INSTEAD OF INDIVIDUAL PARTS.
(Q2501, Q2502, Q2503, CAPSTAN COIL)
NOTE:
PARTS ENCLOSED IN DASHED LINES MARKED "Z" ARE NOT USED.
Summary of Contents for OmniVision PV-C2780-K
Page 8: ...Fig 1 3 Fig 1 4 8 ...
Page 26: ...Fig D5 6 1 2 1 Notes in chart 26 ...
Page 29: ...6 2 2 Inner Parts Location Fig J1 1 29 ...
Page 30: ...6 2 3 EJECT Position Confirmation Fig J1 2 30 ...
Page 31: ...6 2 4 Grounding Plate Unit Full Erase Head and Cylinder Unit Fig J2 1 31 ...
Page 44: ...6 3 CASSETTE UP ASS Y SECTION 6 3 1 Top Plate Wiper Arm Unit and Holder Unit Fig K1 1 44 ...
Page 81: ...81 ...
Page 85: ...11 2 MECHANISM BOTTOM SECTION 85 ...
Page 86: ...11 3 CASSETTE UP COMPARTMENT SECTION 86 ...
Page 87: ...11 4 CHASSIS FRAME SECTION 1 87 ...
Page 88: ...11 5 CHASSIS FRAME SECTION 2 88 ...
Page 89: ...11 6 PACKING PARTS AND ACCESSORIES SECTION 89 ...