MD-MS722H/MS721H
– 27 –
Figure 27 BLOCK DIAGRAM
IC651
MOTOR DRIVER
LB1930M
VCC
IC351
HEAD DRIVER
74ACT02T
VCC VEE
VCC VEE
BATTERY CASE
(BOOSTER CIRCUIT
BUILT-IN)
RECHARGEABLE
BATTERY
M903
LIFT MOTOR
IC850
POWER DRIVE
IR3M09N
IC820
POWER DRIVE
IR3M09N
IC501 AD/DA
CONVERTER
AK4519VF
M902
SLED MOTOR
IC101
RF SIGNAL
PROCESSOR
IR3R55
IC771
TK71225M 2.5V
REGULATOR
IC200
2V REGULATOR
62FP2002
IC401
SYSTEM
MICROCOMPUTER
IX2772AF
RIPPLE
FILTER
IC871
TK71345M
4.5V REGULATOR
OPIC
LASER
PICK
HEAD
M901
SPINDLE
MOTOR
IC201
ENDEC LSI
LR37811
+2.8
+2.5
T
F
+2.5
+2.5
+2.5
+2.8
+2.8
VDD
+2.0
+2.8
+2.5
–2.5
AVCC
+2.5
+6~8
+2.8
J703
REMOTE
CONTORL
J801
DC IN
(4~5.5V)
(2.9~4.1V)
(3.4V)
VCC
VCC
+2.35
DISPLAY UNIT
OPERATION UNIT
IC901
3-PHASE BRUSHLESS
DRIVER
BA6965AF
IC703
AUDIO AMP
IR3R54N
IC701
AUDIO AMP
IR3R54N
IC601
PWM DRIVER
17A39TD
VM
VCC
IC402
EEPROM
S29L294A
+4.5
VCC
VS
IC202
16BIT D-RAM
IX2723AF
+2.5
+2.5
+4.5
OPTICAL IN
UNIT
J701
DIGITAL INPUT
J701
LINE INPUT
J702
MIC IN
(READY FOR
PLUG-IN POWER)
J703
HEAD PHONES
LINE
1,6
19,20
17
13
24,26
29,31
6,8
13,14
24,42
25-30,40
3,5-9,11
26-30,
32-37,
39-46
2-5,
7-12,
14-23
14
8,11
4
1
7,9
3,4
57,66
55,58
59,
70-74
7-12,
15,17
1,12
3,6
19,20
5,6
20
17
20
17
10,12
5,6
22,24
18,19
Q721
8
8
13
1-4
35
2,15-17,
19-22
1-3
1-3
14-16
69,
72,
73,
83,
84
9,
10,
13
42,48
2
17-24
50
4
5
12
33
3
12
2
3
4
5
82-84,86
89-100
52,53
2
3
4
1,20-30,
76,93-95
SERIES
REGULATOR
OVER VOLTAGE,
REVERSE-CONNECTION
PROTECTION CIRCUIT