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MD-DR470H/MD-DR480H
MAIN PWB-A
A
OPTICAL PICKUP
B
C351
5 4 3
33P(CH)
C
1
2
D
E
24
F
CN601
9
8
7
6
11
10
FLEXIBLE
PWB
G
M903
LIFT MOTOR
–
M
+
MECHANISM FLEXIBLE PWB
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 38.
1
OPIC
TP352
HEAD DRIVER
IC351
74ACT08T
C357
0.1
1
VCC
14
2
13
3
12
R352
330K
4
11
10
5
6
9
7
GND
8
R351
12
+B
VCC_HEAD
C353
1
D351
SBE803
6
5
4
4
3
2
5
1
1 2 3
+B
TRDRR
TRDRF
DCNT1
DCNT2
C911
0.22
C912
0.22
+B
+B
SLCNT1
C914
SLCNT2
1
SLCNT3
6
7
REC
5
4
3
2
1
PLAY
SKIP DOWN
GROUP
M902
SLED
U
MENU
MOTOR
W
M
V
DISP
U
SKIP UP
V
M901
M
SPINDLE
VOL+
W
MOTOR
COM
VOL–
STOP
OPERATION BUTTON FLEXIBLE PWB
2
Figure 28 SCHEMATIC DIAGRAM (3/8)
C602
1
T–
T+
C601
F–
C604
F+
C603
1
32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17
33
IN2R
34
IN2F
35
MUTE
36
MUTE2
CP1
37
CP2
38
39
CPC1
40
CPC2
IC601
41
VG
LV8221T
C913
42
VCC
MOTOR DRIVER
1
43
VCC
44
S1
45
S2
46
S3
47
SLVS
FG
48
49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
L610
22 µH
C908
C909
1
1
SPU
SPV
SPW
SPCOM
SLU
SLV
SLW
LCD
7 6 5 4 3 2 1
3
4
– 28 –
EFMOX
EFMO
+B
1
1
+B
+B
C652
0.1
+B
LDCNT0
LDCNT1
MCCK
16
CLK
SPDRF
PWM
15
SPDRR
BRK
14
SLDRF
IN4
13
DCNT1
MUTE3
12
S/S
11
+B
MODE1
10
C608
0.47
VCOIN
9
R906
RMAX
8
56K
VCO
7
C901
SGND
6
0.0033
SGND
5
COMIN
4
C907
FIL
3
0.0022
SPVS
2
SPGND
1
SPIN
R910
33K
1
TP452
2
HREC
TP453
3
HPLAY
TP454
4
HKEY1
TP455
5
TP456
6
STOP
TP457
7
TP458
DSPSTB
8
TP459
DSPSCK
9
DSPDAT
TP460
10
11
30 29
5
+B
DSPDAT
DSPSTB
DSPSCK
RMDAT
OPICGA
SGAIN
DISC
AUPON
AUSCLK
MCPGIN
INPGIN
INPGCK
SLCNT1
SLCNT2
SLCNT3
RFPCNT
DISC
R404
+B
100K
C404
0.1
SW901
2
TP901
3
1
PRPTECT
VCC_MA
28
6
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