KDC-MP4028/MP428/MP6029
4
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SWITCH UNIT (X16-291x-xx)
Ref. No.
Application / Function
Operation / Condition / Compatibility
IC1
VFD DRIVER
IC2
REMOTE CONTROL
Q4
SW 5V
The power supply of IC2 turns on when Q4’s base goes “L”.
Q10
RED LED SW
RED LED turns on when Q10’s base goes “H”.
Q11
GREEN LED SW
GREEN LED turns on when Q11’s base goes “H”.
●
CD PLAYER UNIT (X32-5740-00)
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
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
IC8
Memory IC
Used only for 0-02 destination
IC11
Buffer IC
Level shift
Q1
A3.3V discharge circuit
Q4
Electric AMP
Adjusts current to be sent to laser
Q5,6
SW 5V
Q7,8
SW 8V
D1
For electric AMP
COMPONENTS DESCRIPTION