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5
1.4 POWER SUPPLY AND LOADING BLOCK
For the power supply for this system, the VD (7.5 ± 0.5 V) and the VDD (3.3 ± 0.165 V), which are supplied from the
motherboard, are used. The two power supplies, the VD mentioned above (for the drive system), and the VDD (for the LSI:
3.3 V), are used in this system.
The CPU of the LSI controls ON/OFF with "CONT", except for Load/Eject of the CD driver. For ON/OFF of the Loading
drive, no particular control terminals are available, but the input signal "LOEJ" assumes an equivalent role. Also, the LCO
output switches LOADING MODE and CARRIAGE MODE with "CLCONT".
CN901
PGND
15
29
10
19
VD
1
28
2
10
GND
14
VDD
9
Fig.1.4.1 Power supply/loading system circuit block
CLCONT
Fig.1.4.2 Loading/carriage mode shift
5
6
LCOP
18
LOADING
IC301
M
MOTOR
BA5839FP
LCOM
17
9
22
21
Loading Mode
6
7
CLCONT
43 5
3.3VDD
S903 S905 S904
Carriage Mode
Loading Mode
CX-3195
7
8
41
IC201
PE5547A
6
7
8
9
S901
8
A
B
C
D
E
F
17
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