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CONTENTS
1. CIRCUIT DESCRIPTIONS ............................................................................................................................... 3
2. MECHANISM DESCRIPTIONS ...................................................................................................................... 20
3. DISASSEMBLY ............................................................................................................................................... 22
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1. CIRCUIT DESCRIPTIONS
RF amplifier
CD-ROM
decoder Buffer memory
controller(BMC)
Digital servo
EFM Signal
processor
DAC
SRAM(1Mbit)
Microcomputer
A - F
UPD63763CGJ
Audio output
MP3/WMA
decoder UPD63763CGJ, multifunctional LSI used in this device, has built-in CD-ROM decoder and MP3/WMA decoder, as shown
in Fig.1.0.1, as well as the conventional CD block, allowing to play CD-ROMs, in which MP3/WMA files are recorded,
while the recent mainstay of the CD LSI is the LSI integrating the core DSP with DAC or RF amplifier, which are generally
used as peripheral circuits.
Fig.1.0.1 Block diagram of CD LSI UPD63763CGJ
