4
DPX301
DPX-MP2090/MP2090S
●
CD PLAYER UNIT (X32-5860-00)
Ref. No.
Application / Function
Operation / Condition / Compatibility
IC1
A3.3V regulator
Power supply for audio 3.3V
IC2
Ope amp for low-pass filter
IC3
4ch BTL driver
Driving spindle motor and loading/ejection operation
IC4
Mechanism
µ
-com
IC5
BU 3.3V regulator
Power supply for backup 3.3V
IC6
D3.3V regulator
Digital 3.3V power supply
IC7
Audio DAC built-in servo DSP
MP3, WMA, and AAC compatible
IC11
Buffer IC
Level shift
Q1
A3.3V discharge circuit
Q4
Current amp
Adjusts current to be sent to laser
Q5,6
SW 5V
Q7,8
SW 8V
D1
For current amp
COMPONENTS DESCRIPTION