IC903
B1MBBDA00002
POWER MOS FET
(MAGNETIC HEAD DRIVE)
2
1
3
4
5
6
7
8
9
106
5
4
3
2
1
(
RECORDING
HEAD)
B
CN2
4
3
1
2
LIFT MOTOR
IC904
B1MBBLA00001
POWER MOS FET
(MAGNETIC HEAD DRIVE)
C
B
A
D912
ZHCS1006TA
C914
15P
D913
ZHCS1006TA
A
B
C
D
R912
6.8
C915
0.047
A
CN901
CN3
C912
4V10
C913
0.1
S1
TP146
TP148
TP147
8 7 6 5
1 2 3 4
D1 S1 S1 G1
G2S2S2D2
8 7 6 5
1 2 3 4
D1 S1 S1 G1
G2S2S2D2
IC401
C0GBZ0000006
FOCUS/TRACKING COIL,
TRAVERSE MOTOR DRIVE,
SPINDLE MOTOR DRIVE,
ROTARY DETECTOR
C
A
D
B
TRAVERSE
MOTOR
1
3
4
2
CN403
C418 0.33
D
4
2
1
3
SPINDLE
MOTOR
CBA
CN404
C417 0.033
C416 0.033
R412
6.8K
BAC
3
61
60
59
56
4746444342413938
S3
BEM FU
BEM FV
BEM FW
SL COM
SL PG2
SLW OUT
SL VM2
SLV OUT
SL PG1
SLU OUT
SL VM1
Vcc2
Vcc1
VG
C2M
PW IN1
SPU IN
SPV IN
SPW IN
SP COM
RIB
CST
CSL1
CSL2
FG
BRK+
BRK
-
AS GND
S GND
S1
S2
IN1R
IN2F
IN2R
STALL
STHB
SP VM1
SPU OUT
SP PG1
NC
SPV OUT
SPVM2
SPW OUT
SP PG2
PW VM
PW OUT
PW PG
C2P
C1M
C1P
EXT CLK
NC
H2 PG2
H2R OUT
H2 VM
H2F OUT
H1F OUT
H1 PG1
IN1F
H1 PG2
H2 PG1
H1R OUT
H1VM
10111214
1516
4
5
67
30
33
373635
34
32
29
24
23
28
26
25
19
18
17
22
21
20
8
50
49
52
51
62
58
55
54
53
13
4540
27
9
31
12
64
63
57
48
L411
C411 4V22
C404
0.1
C
B
A
C412 2200P
C413 2200P
C414 2200P
R411 470
C419 0.1
C420 0.1
C402
0.1
E
F
G
H
I
J
K
L
M
R431 10K
C401
4.7
C415
0.033
AB
R401
47K
TP420
U
VW
U
VW
CBAD
ABCD
C403
1
N
E
A
B
C D
NOTE:
The number which noted at the connectors on the schematic diagram as
"SCHEMATIC DIAGRAM-1" or "SCHEMATIC DIAGRAM-2"
indicates the schematic diagram serial number located on the left corner in the schematic diagram.
MAIN CIRCUIT
TP145
U
VW
RECORDING HEAD
CIRCUIT
SJ-MR220(EB,EG,GCS,GH) MAIN,RECORDING HEAD SCHEMATIC DIAGRAM
0V
0V
0V
2.2V
0V
0V
0V
0V
0V
1.4V
0.5V
0.4V
0V
0V
0V
0.1V
0V
0.2V
0.8V
0V
1.2V
0V
2.2V
2.2V
2.2V
2.2V
0V
0V
0V
1.5V
1.5V
1.4V
1.5V
1.5V
1.4V
2.2V
2.2V
5.5V
1.2V
4.8V
0.8V
2.9V
0V
1.4V
0V
0V
1.4V
0V
0V
(0V)
(0V)
(0V)
(0V)
(2.2V)
(1.1V)
(2.2V)
(2.2V)
(0V)
(0V)
(0V)
(0V)
(0V)
(1.8V)
(2.2V)
(1.8V)
2.2V
1.5V 0V 0V 0V
0V0V0V1.5V
(0.7V) (0.7V)
0V 0V
0V0V
(3.1V)
1.5V
1.5V
1.4V
:POSITIVE
VOLTAGE LINE
:RECORDING
SIGNAL
"DIGITAL" LINE
2.2V (0V)
(2.2V)
(0V)
(1.7V)
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