Specifications

CHAPTER 5
Internal Storage Devices
48 Internal CD-ROM Drive
Connector Adapters 5
As Figure 5-1 illustrates, the Macintosh LC 520 computer uses special adapters that allow
internal storage devices to slide into place and plug directly into the computer. The
connectors on the devices themselves must be located properly so that the connector
adapters will fit. Figure 5-3 shows the connector locations on the internal CD-ROM drive.
Figure 5-4 shows the connector locations on the internal hard disk drive.
The internal hard disk uses a single connector adapter that incorporates both the signal
pins and the power pins. The optional CD-ROM drive uses two connector adapters. The
first of those is similar to the hard disk adapter and incorporates both signal and power
pins. The second adapter is for the separate audio connector.
Figure 5-3 Connector locations on the CD-ROM drive
Internal CD-ROM Drive 5
This section describes the dimensions, mounting method, and power budget for the
AppleCD 300i CD-ROM drive installed in the Macintosh LC 520 computer.
Dimensions of the CD-ROM Drive 5
Figure 5-5 shows the dimensions of the AppleCD 300i CD-ROM drive. The Appendix
gives the other specifications of the AppleCD 300i.
124.4
64.4
49.5
3
2.1
11.4
14.9
1
33.5
Audio connector
Center
for12-M3
screw
SCSI connector Power connector
Note: Dimensions are in millimeters