Service manual

Eagle Series Computer Service Manual Page 19
DSS-10517-00, Rev. B01
PERIPHERAL MOUNTING
For information on the AM-990 chassis version, consult the
AM-990 SBC Service Manual
, part
number DSS-10524-00.
Your Eagle computer cabinet can hold six half-height peripherals or three full-height 5.25” peripherals.
Filler panels in the computer front panel can be removed to allow access to some of these peripherals. If
you have six half-height peripherals, four of them can be accessed through the front panel; if you have
three full-height peripherals, two of them can be accessed through the front panel.
3.5” diskette or hard disk drives mounted in 5.25” mounting brackets are also compatible with
your computer.
The following figure shows all six peripheral mounting positions in the Eagle chassis. For detailed
instructions on configuring a particular device, see the installation instructions shipped with that device.
A peripheral is installed in the drive mounting bracket using four Phillips-head screws. To install the
peripheral mounting screws, you need access to both sides of the peripheral mounting bracket. On one
side of the cabinet, all six of the mounting positions are easily accessible. However, on the other side of
the cabinet, the main electronics board and its mounting bracket block access to all but the top two
positions. To ease the installation process, Alpha Micro installs peripherals starting at the top position
and working down. If your computer includes one disk drive and one tape drive, the two peripherals will
be mounted in positions 1 and 2, which are easily accessible from both sides of the chassis.
To install peripherals in mounting positions 3, 4, 5, and 6, you need to remove the main electronics board
and its side mounting bracket from the chassis. At first glance, this might seem difficult, but if you
follow the procedure outlined below, it will make the task much easier.
There are two basic types of Eagle system rear panels: the Eagle 100-500 rear panel, and the Eagle 550
rear panel. The two types of rear panels require a different method of unfastening the main electronics
board. However, once the main electronics board is unfastened from the rear panel, all Eagle side
mounting brackets are removed in exactly the same manner.