Specifications

CHAPTER 1
Introduction
4
Built-in Color Display
Figure 1-1 Front view of the Macintosh LC 520 computer
Back View 1
Figure 1-2 shows the back of the Macintosh LC 520 computer. The master power switch is
located just beneath the fan grille. The external connectors are located in a row across the
lower part of the back.
Access to the Logic Board 1
Just above the row of I/O connectors on the back of the computer are two projecting tabs.
By pushing down on the tabs, the user can remove the connector cover and gain access to
the main logic board. The logic board has a custom connector that plugs into a socket at
the front so that the user can remove the board from the case by pulling it out the back.
Once the board has been removed, the user can add expansion RAM or plug in an
expansion card, as described in later sections of this note.
Built-in Color Display 1
The Macintosh LC 520 computer has a built-in color display with a 14-inch Trinitron
monitor. Like the video interface in the Macintosh Color Classic, the video interface
in the Macintosh LC 520 computer uses separate VRAM for the screen buffer. The
Macintosh LC 520 does not have an external video connector.
Built-in microphone
Color display
CD-ROM drive (optional)
Floppy disk drive
Stereo speakers
Screen control buttons
Headphone jack
Power-on light
Sound control buttons