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DDX3028/3048/3058/318/4038/4038M
DDX4028BT/4038BT/4038BTM/4048BT/4058BT/418
Ref. No
Application / Function
Operation / Condition / Compatibility
IC371 Regulator
1.8V
Regulator
Q3311
Transistor
5.0V Regulator for DAC
●
DVD UNIT
Ref. No
Application / Function
Operation / Condition / Compatibility
IC1
Servo Driver
Driver Feed motor, Spindle motor, Loading/Eject Motor and pick-up actuator
IC3
Power supply IC for D3.2V
D4V
→
D3.2V
IC7
2-channel Multiplexer
Switch for changes of servo signal and I2C signal
IC8
Microcontroller
Certi
fi
cation chip for iPods
IC9
Transistor
Switch on/off DVD laser power
IC9
Transistor
Switch on/off CD laser power
IC10
MOS FET
Switch on/off DVD VR
IC10
MOS FET
Switch on/off CD VR
IC301
DVD processor
MPEG decoder function processor (AV decoder)
IC302
Power supply IC for D1.2V
D2V
→
D1.2V
IC308
IC for crystal oscillations
48MHz for USB
IC398
FLASH ROM
Firmware maintaining for DVD processor
IC399
SDRAM IC
SDRAM for DVD processor
IC400
2ch D/A converter
Convert audio digital signal to analog signal
IC481
32kbit EEPROM
Store user setting, servo parameter and etc.
IC501,502
8bit D-type Latch
Latch to divide an address and data
Q2
Transistor with resistance included
Loading/Eject Motor Speed control
Q4
Transistor
Buffer Tr of Photo Detector SW for Mecha
Q7
Transistor
Buffer Tr of Photo Detector SW for Mecha
Q101
Transistor
Drive DVD laser power
Q103
Transistor
Drive CD laser power
Q105
Transistor
Switch for changes of CD VR and DVD VR
Q301
Transistor with resistance included
Level conversion of SW1 signal
Q302
Transistor with resistance included
Level conversion of SW4 signal
Q304
Transistor with resistance included
Pole conversion of Vbus SW signal
COMPONENTS DESCRIPTION