Star Tech Journal

Issue: 1981-June - Vol 3 Issue 4

S*T J JUNE 1981 4
CENTURI "PHOENIX" Modifications
Subjects: 1. "PHOENIX" RESET
2. "PHOENIX" FREEZE
1. To minimize static charge between player and game, which can result in game
resets, the following changes are necessary. Remove existing green ground
wires from harness between mo/ex connector pin 12 and ground lug of control
panel and between control panel mo/ex connector pin 12 and coin door connector
plug. Install 18 A WG, 1/8 in. wide, flat braided wires with soldered ground lugs
(#14-#16 AWG) at each end from A.C. line filter ground lug and coin door and
between A.C. line filter ground lug and control panel.
2. Some "Phoenix" games are having a problem with the '"Phoenix" bird freezing on
top of the screen. One correction for this problem is the adjustment of the +s volt
supply. Voltage should be set between +s volts and +5.2 volts which can be
adjusted through the small round opening located on top of the power supply unit.
If additional information is required, please call Centuri Customer Service at
1-800-327-7710 .
•••• • • • ••
A
o;.a
~.()(90'
tool
will
land
where
it
can
do
the
most
damage.
(Also known as
the law of
selective gravitation).
OPERATORS!
MECHANICS!
Are you searching for a painless way to upgrade your ability to repair the
Electronic games you operate ... the games you depend on for your
livelihood?
SAN DIEGO ARCADE SCHOOL ...
offers 46 hours of comprehensive, practical training in electronic amuse-
ment repair for mechanics and operators.
YOU DON'T NEED AN OSCILLOSCOPE ...
to be successful at repairing Solid-State games. The course stresses the
efficient use of test equipment like the Logic Probe and Digital Multimeter;
relatively inexpensive equipment that operators and mechanics can easily
afford.
IS THE COURSE EXPENSIVE?
Not really. The tuition fee of $400.00 includes over $75.00 worth of
textbooks, databooks, and other materials!
San Diego Arcade School will not teach you how to repair a jukebox,
electromechanical pinball or vending machine. You will learn about diodes,
transistors, power supplies, electronic pinball, video games (including a
special session on video games that use the X-Y monitor system). cross
referencing semiconductor replacement parts, using a logic probe, and
more.
San Diego Arcade School • 61 23 El Cajon Blvd.
San Diego, California 92115 • (714) 286-0172
S*T J
*
*
JUNE 1981
Midway ~~Gori" Program Change
Rom program number two is now in all "Gori" games
which will make the game harder to play after the
5th mission.
The roms will not be interchangable between program
number one and two.
*
*
The rom code and board location of program number
one and two roms: See the code and location chart.
The rom location on domestic and foreign rom/ram
boards are different.
ROM CODE AND LOCATION CHART
PROGRAM NUMBER ONE
Domestic Rom/Ram Board
PC A082-91364-AOOO
ROM CODE
LOCATION
M873A-0850
x-1
M873B-0850
x-3
M873C-0850
x-5
M873D-0850
x-7
M873E-0850
x-11
M873F-0850
x-13
M873G-0850
x-15
M873H-0850
x-17
Foreign Rom/Ram Board
PC A082-9137 4-AOOO
ROM CODE
LOCATION
M873A-0850
x-1
M873B-0850
x-2
M873C-0850
x-3
M873D-0850
x-4
M873E-0850
x-5
M873F-0850
x-6
M873G-0850
x-7
M873H-0850
x-8
PROGRAM NUMBER TWO
Domestic Rom/Ram Board
PC A082-91364-AOOO
ROM CODE
LOCATION
873-109AXR-AXSD
x-1
873-109AXR-BXSD
x-3
873-109AXR-CXSD
x-5
873-109AXR-DXSD
x-7
873-109AXR-EXSD
x-11
873-109AXR-FXSD
x-13
873-109AXR-GXSD
x-15
873-109AXR-HXSD
x-17
Early Warning #2
Foreign Rom/Ram Board
PC A082-91374-AOOO
ROM CODE
LOCATION
x-1
873-109AXR-AXSD
x-2
873-109AXR-BXSD
x-3
873-109AXR-CXSD
x-4
873-109AXR-DXSD
x-5
873-109AXR-EXSD
x-6
873-109AXR-FXSD
x-7
873-109AXR-GXSD
x-8
873-109AXR-HXSD
!f)!~~ks~AINTENANCE TIPS)
WILLIAMS:
MIDWAY:
Credits can be put on some late Williams
games by pressing the yellow plastic shield
( coin switch protector) on the inside of the
coin door. By pressing this shield ( on a few of
the games), it will bend the diodes against the
other point, thus shorting the switch out.
If this feature is used, verify the coin slot by
using a quarter before closing up the game.
Midway has a small defect that will be cured
on forthcoming games. They have two fuses
next to each other on the bottom of the game.
At times metal hardware or coins can fall
across the fuses causing the 11 OV to short to a
lower voltage line. I recommend protecting
the fuses with a heavy paper cover.
MIDWAY:
The interlock on the coin door is actuated by a
small rubber block. Use a small amount of
paint to verify the interlock hits the center of
the block. It would be beneficial if Stem
would use a larger block of rubber or mount
the switch so a block isn't necessary.
Note that "Gorl" uses an alien bolt with a pin
in it. The button hole wrench should be in the
game, but I recommend carrying an extra
with your tools.
STERN:
5

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