KDC-MP632U
KDC-W6534U/UY/X590/X7533U
5
●
SWITCH UNIT (X16-374x-xx)
Ref. No.
Application / Function
Operation / Condition / Compatibility
IC2
Remote Control IC
Q4,5
SW5V
The power supply of IC2 is turned on when Q5’s base level goes “Hi”.
Q10
GREEN SW
When the base goes “Hi”, LED lights.
Q12~14
Grid Driver
Each grid is ON when each transistor’s base is “Lo”.
Q15
RED SW
When the base goes “Hi”, LED lights.
Q18
SUB ILLUMI SW
When the base goes “Hi”, LED lights.
Q19
DBO ILLUMI SW
When the base goes “Hi”, LED lights.
Q20
Key Scan Start SW
Key scan starts when the base goes “Hi”.
●
CD PLAYER UNIT (X32-5830-00)
Ref. No.
Application / Function
Operation / Condition / Compatibility
IC1
Mechanism
µ
-COM
IC2
Signal Processor
IC4
BTL Driver
Spindel motor, sled (including loading & eject) motor and pick-up
actuator
IC5
SW3.3V Regulator
3.3V power supply for IC2, pick-up, IC18 digital part
IC13
Audio Active Filter
2nd LPF
IC14
A5V Regulator
3.3V power supply for DAC
IC15
DSP for Compression Audio Decoder
ACDrive decoder, MP3/WMA/AAC decoder
IC16
Compression Audio Codec SDRAM
IC17
Decoder Software & Unique ID Strage Flash ROM
IC18
Audio D-A Converter (24-bit external)
External 24-bit for audio
IC19
BU3.3V Regulator
3.3V power supply for
µ
-com
IC20
1.8V Regulator
1.8V power supply for IC15 core part
IC21
Decoder/SDRAM/Flash ROM/USB Driver 3.3V
Power supply for decoder, SDRAM, flash ROM and USB driver.
Regulator
3.3V power supply for IC15 port parts, IC16, IC17, IC25, IC26 and IC28.
IC25
USB Host Controller
Switching among IC15 & Flash ROM &
For DSP for Compression Audio Decoder, Flash ROM, SDRAM and USB
To SDRAM
During non-searching
Static Electricity Countermeasure
For IC2 built-in reset terminal
D3
Laser Diode Protection
D9
Static Electricity Countermeasure
COMPONENTS DESCRIPTION
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