Installation manual

Installation
Preparation
The MultiRam RGB card comes ready to use on current Apple //e enhanced
motherboards.
Current Apple //e computers are “Enhanced,” with a revision of components
on the motherboard so the //e more closely resembles the //c. These machines
can be recognized by the won! “Enhanced” that appears on the power indicator
light on the lower left of the keyboard, and also by a large letter “E” on the
left rear of the motherboard. If you are unsure what your Apple is, continue
reading. If your computer is enhanced, skip to the next section, “Inserting the
Can!”.
To see if you have a Revision A motherboard remove the cover from your
Apple //e and look at the back edge of the motherboard, just behind the row of
seven peripheral slots, near the middle. You should see the words “APPLE
COMPUTER” and below them the serial number (see Figure 2.3). The last
character of the serial number is a letter-- A, B, or C. If the letter is an “A”,
yours is the Rev. A motherboard. (Note: if the copyright date to the left of the
serial number is 1984 or newer, you have an enhanced //e and no modification
is necessary for the installation procedure.)
For owners of earlier, non-enhanced Apple //e computers, there are three
versions of the motherboard -- Revisions A, B, and C. For the Revision A
motherboards, the earliest Apple //e, double hi-res is not available and a
simple modification is necessary to prepare the MultiRam RGB for use with
this motherboard. Refer to Figure 2.l,and locate the Jumper Block along the
bottom center of the card. Remove this block by simply pulling it outward
from the card. You might wish to place it back on just one of the exposed
pins for storage. If your motherboard is a Rev. B or C, leave the block in
place covering the two pins. To get the double high resolution you must
swap your Revision A motherboard for a later revision. Your local Apple
dealer can do the swap and installation.
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