Space Invaders 'Test' ROM Placement

Dumped by Paul Sommers May 2001
Confirmed working by Chris Hardy and Jerry Clause


NAME		LOCATION	SIZE	CHECKSUM
---------	--------	----	--------
sitest_716.bin	ROM H		2716	461A
sitest_732.bin	ROM H		2732	8C34


Depending on the strapping of your Space Invaders PCB,
use eiother the 2716 ROM or the 2732 ROM. The 2732
ROM is simply a doubled image of the 2716. The Test
ROM can be placed in location "H" without having to
remove the other three ROMS.

Once the Test ROM is installed on the game board, the
Game goes through a small power up test somewhat like
Galaxian but much shorter. If all RAM are good, a
screen will be displayed stating "OK all RAMS",
followed by another line stating "port 1" and next to
it the numbers "01234567". Under that is "Port 2" and
next to it "01234567". Port 2 appears to be the dip
switch settings. An "x" can bee seen under the
numbers for a switch that is on.

At the bottom of the screen there is a section that
says "check sound" and a icon can bee seen going
down a list of 11 different sounds. A picture of the
test screen is included in this archive.


It is unclear if this ROM was intended to be used
on the original Taito board, but it has been
confirmed to work on the Midway PCBs. The ROM may
work with the factory Midway board tester, but that
has yet to be confirmed. If anyone figures it out,
please let me know!

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