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a500.replacement
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1988-10-05
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2KB
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67 lines
Amiga 500 KickStart 1.3 ROM Replacement
---------------------------------------
- Remove the cover of the 500, there are three TORX screws in the front
and three in the back.
- Unplug the keyboard, by gently pulling the connector going into the metal
straight up. NOTE which way the connector goes, there is a black wire
on the left side. This must be put back on correctly, or damage will
result to the keyboard and/or computer.
- Move the keyboard out of the way, and remove the metal sheild. There
are four metal tabs that have to be bent up, and four TORX screws in
the sheild (two in the front, and two in the left side).
- Locate the KickStart ROM (see enclosed figure), it has the part
number 315093. The dash and last two numbers indicate which version.
KickStart 1.2 is version 01, and KickStart 1.3 is version 02.
- Notice the direction of the chip. It has a notch in one end. The
replacement chip MUST go in the same way. Gently pry the old chip out
with a small flat object wedged between the chip, and the socket. Work
at both end, a little bit at a time.
- Set one side of pins, of the new ROM into the socket. Using two fingers,
GENTLY push on the free end, until it will go into the socket. Then after
you are CERTAIN, both sides of the chip are in the socket, push down on
the chip, to seat it all the way into the socket.
- Reassemble the system, and power it up. You should immeadiately see the
screen change through it's startup colors and give you the WorkBench
prompt with a little V1.3 in the corner. If you do not, immeadiately turn
off the computer and double check everything. If you did, congratulations
on your success!