Star Tech Journal

Issue: 1991-April - Vol 13 Issue 2

Wnis Replacenient
Seniiconductors
Reinhard Bangerter
Nickels & Dimes Inc.
Laguna Hills, California
Perfect Billiards
~
Micro Retrofit
Vic Fortenbach
United Artists
Palm Springs, California
SYMPTOM
SUBJECT
Trouble with the displays. The De high voltage is
non-existent.
A new chip set is now available to convert your
Perfect Billiards to a Z-80 microprocessor. Per-
fect Billiards is manufactured by Ninon Systems
of Japan and is distributed in the USA by United
Artist.
PROBLEM
Cross referencing the part numbers to suitable
replacements.
REASON
SOLUTION
Here are some substitutes for your Williams high
voltage power supply. Always check all semi-
conductors in both the +100 and -100 supply
before powering up. Also check for burnt display
tubes or ones that come up blank so as not to re-
damage your repair.
And use new heat sink compound on the power
tabs -it gets real hot in those headers!
Ql
Q2
SDS201
MPSD52
Q3
Q4
SDS202
MPSD02
Zl &Z3
Z2&Z4
1N5990
1N4764
NOTE
NOTE
The SA-9056 and SA-9057 numbers on the
devices relate to the Williams part numbers.
0
AVAILABILITY
$20 and the old chip will get you the four new
ones you need for this conversion. Call United
Artists for more info at (619) 322-4422
ECG or N1E 171
ECG or N1E 287
or 2N5400
ECG or N1E 296
ECG or N1E 288
or 2N5551
ECG or NIE 5067 A
ECG or N1E 5096A
Williams is now using MJE l 5030's and
MJE1503l's for Ql and Q2 which are in a
different case style.
0
The Perfect Billiards used a custom micropro-
cessor that would "die" with no hope of ever
finding a replacement, so this 4 chip set converts
the board to the standard Z-80. The Z-80 re-
places the custom chip at position BM and three
other chips are added at positions NP8, NPlO
and R8 on the game board.
0
JUST DO IT!
Don't Let Those Time & Money Saving
Mod's, Fixes & Technical Tips
Gather Dust In Your Service Files ...
Mail or fax them to STAR*1ECH Journal & keep your
name (and your company's) out in front with the most
progressive technicians in the Coin-op Industry. Share the
knowledge!
,,,,..,..,
STAR.M'ECH Journal, PO Box 1065,
18 Norlh Centre Street, Merchantville, NJ 081()1)
Phone: 609/662-1080 0 Fax: 609/662-0537
Konam.i Hand Held Video Gam.e
Kathy Reilly
Konami,Inc.
Buffalo Grove, Illinois
Following a successful enuy into the LCD hand
held game market in 1989, Konami, Inc. an-
nounced it would unveil a new series of games at
the 1991 Toy Fair. The leading independent
supplier of video games for the Nintendo Enter-
tainment System (NES), Konami Consumer
Products Division has traditionally shown
games only at the Conswner Electronics Shows.
"We've experienced double digit growth since
introducing hand helds and believe we're poised
to take a leadership role in the LCD market." said
Emil Heidkamp, senior vice president of
Konami's Consumer Division. "For us to effec-
tively compete and translate our leadership with
Nintendo products to this market, we need to
~present our hand helds at Toy Fair where the
majority of products are shown."
When converting a Nintendo video game to the
hand held format, Konami is careful to design
each with different action and graphics from
original. "In focus groups, we learned kids feel
cheated if they think the hand held game is the
same as the NES game," explained Heidkamp.
"Changing the game even slightly extends the life
of the title and gives the gamer added value to his
or her gaming library."
Konami Inc. is a wholly-owned subsidiary of
Konami Indusuy Co., Ltd/Japan. Konami's
worldwide activities include the development
and marketing of arcade and home entertain-
ment software and peripherals. Products in-
clude Nintendo Entertainment System car-
tridges, LCD hand held games and the
LaserScope. Konami annual sales for fiscal 1990
exceeded $260 million and sales for fiscal 1991
are expected to exceed $300 million.
aaTESTER for BALLY & STERN FLIPPER GAMESiai
All pinball machines made by Bally or Stern between 1977 and 1984 have one
thing in common: they all contain the same Main Processor Board (MPU).
These boards have a header strip which was included in the design of the
circuit board to allow connection to an external diagnostic computer. Our
TESTER plugs into this header and disables the MPU board's ROMs and
enables it's own, so you can tell immediately whether the problem is in your
hardware or software. The TESTER'S onboard ROM runs a detailed diagnostic
program which allows addressing of each and every solenoid, controlled light,
and display digit to allow testing of the Solenoid driver board, the Light driver
board, and the Displays. You also get a Switch Matrix board to test the switch
rows and columns and to input commands to the TESTER program. Comes
with extra long cables to test boards without having to remove them from the
game and an instruction book to guide any intrepid technician, armed only with
a logic probe and a multi-meter, through all phases of use of the TESTER.
~ TESTER board with diagnostic program ROM, switch matrix board,
extra long hook-up cables, and complete instruction book ..... $300.
Order Direct by calling:
Two-Bit Score
512-282-9369
Austin. Texas 78748 i i i i i i i i i i
or send a LARGE, self-addressed, stamped envelope to receive an advertising
packet about this and many other useful products for the Coin-Op Technician.

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