Cd-Rom Reader; Cables; Mediadock Chipset; Mediadock Chip Types And Technologies - NEC VERSA MEDIADOCK Service Manual

CD-ROM Reader

The sound system contains a standard NEC CDR-250 dual-speed CD-ROM reader. The
CD-ROM reader lets the user access data and play audio CDs. It uses an IDE interface and
is assigned to the next available drive letter. The CD-ROM reader is compatible with Kodak
Multisession Photo CDs™ and standard audio CDs.
CD-ROM specifications include the following.
n
680 MB capacity
n
333,000 blocks/disc
n
2048 bytes/blocks
n
300 kilobytes (KB) per second data transfer rate
n
Burst transfer rate, PIO mode 2
n
380 milliseconds (ms) access time
n
286 KB memory buffer

Cables

The MediaDock ships with four cables. These include the IDE cable, power cable, line out
cable, and speaker cable. The IDE cable provides an interface for the CD ROM reader. The
CD ROM power cable carries electrical power from the sound board to the CD ROM. The
CD ROM line out cable routes audio from the CD ROM through the MediaDock. The dual
speaker cable is attached via connectors to the power amplifier board, providing exceptional
sound quality.

MEDIADOCK CHIPSET

Refer to Table Section 1-1 for a quick summary of the chip types used in the system. See
the Abbreviations section at the beginning of this manual for a translation of chip technolo-
gies.
Table Section 1-1 MediaDock Chip Types and Technologies
Chip
ES688 AudioDrive®
YMF262-M
Manufacturer Description
ESS Technology Sound Integrated Circuit
Yamaha Frequency Modulator (FM)
Synthesizer
Technical Information
Technology
100-pin PQFP
24-pin SOP
1-7