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1
2
4-2 Disc Drive Section Block Diagram
G
8cm DVD-RAM/DVD-R
DISC
Head
SPINDLE
MOTOR
TR
AF
F
LASER
DIODE
LASER DIODE
DRIVE
FRONT MONITOR
E
DET. & AMP
8 DETECTOR
& AMP
SLIDER MOTOR
D
LOCK UNIT
M
DISC COVER
SW
C
DISC
SW
B
A
1
2
3
4
Disc Drive Unit
ANALOG
FRONT END
DATA
STROBE
Recode
DRIVE DSP
(SERVO/DSP/
APC
ENCODER/
DECODER)
4CH BRIDGE
DRIVE
SPINDLE DRIVE
EJECT
MOTOR DRIVE
SRAM
FLASH ROM
µP
3
4
5
Video/Audio
Signal Process
Section
SDRAM
IC2006
CAMERA DSP &
MPEG2 CODEC
ATAPI/
ATAPI
I/F
SENSOR
AMP
SHOCK
SENSOR
EEPROM
5
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6
7
6
7
8
G
F
E
D
C
B
A
8
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