Star Tech Journal

S*TJ MARCH 1982 5
Strong,
Reliable
Joysticks
• Will fit in Upright
and Cocktail Tables
• We ship from stock
Newport
Model 125
Made in the U.S.A. for the
needs of the American Market.
Will replace joysticks in im-
ported and domestic machines.
Interchangeable gateplate for
two, four or eight positions.
Engineered and built to last!
All parts easily replaceable.
FAST SERVICE.
Ideal For
PAC•MAN Games
Joysticks ordered at A.MO.A.
should be reordered direct from
us.
CALL TODAY
SATISFACTION
GUARANTEED
Newport Machine Design
P.O. Box 418
Bishop, CA 93514, U.S.A.
(714) 873-4431
NINTENDO
"DONKEY KONG"
PCB INTERCHANGEABILITY
Subject: Interchangeability of TKG2, TKG3,
and TKG4 P.C. boards .
The first "Donkey Kongs" on the market had
either the TKG2 type P.C. boards or the TKG3
type P.C. boards. These P.C. boards are directly
interchangeable as a set within the machine. The
TKG4 type P.C. board set is also interchangeable
with TKG 2 and TKG 3 type boards in the machine
as a set, with two small differences. The first is, the
TKG4 P.C. board set uses one less power harness
connector, namely the 7 pin sound board harness
connector. So if a TKG4 P.C. board set is
exchanged with a TKG2 or TKG3 type set, we
suggest that the 7 pin sound harness connector
remain with the TKG2 or TKG3 P.C. board set.
This way you will eliminate the need to have extra
7 pin sound harness connectors in stock for
exchange purposes.
The second difference is that the " L" brackets
which secure the P.C. board set in the machine will
need to be raised or lowered, depending on which
P.C. board set is used. This is due to the fact that
the TKG4 P.C. board set is physically larger than
the TKG2 or TKG3 P.C. board sets.
The TKG4 P.C. board sets have the speed up kit
already installed at the factory. The TKG2 or
TKG3 P.C. board set may or may not have the
speed up kit installed, depending on whether the
operator has purchased the speed up kit and
installed it. The EPROMS on the CPU board,
where the speed up kit resides, are interchangeable
between the TKG2, TKG3, and TKG4 P.C.
board sets according to the following schedule:
TKG2&TKG3
TKG4
Location:
5F (
> 5E
5G <
) 5C
5H <
> 5B
5K (
> 5A
ATARI
"ASTEROIDS"
DISPLAY PROBLEM
NEW
VIDEO
CABINETS
FOR SALE
Upright and Cocktail
Models
High Quality-
Low Prices
Ready for Immediate
Shipment
For information call:
214-6411-4286
800-527-6054
BY MICHAEL FRANTZIS
MORE FUN AMUSEMENTS
MIDDLEBURY, CT
Problem: Interconnecting lines on the screen
between objects.
Solution: A bad C.R tube #l9VAR P4 (G2
grid shorted), must be replaced with a
new tube.
The problem just started to appear last month on 3
out of l O of our "Asteroids". The symptoms were
a little different, but the problem was still inter-
connecting lines. Each time I had to replace the
picture tube.
Symptoms:
l. Lines appear only once in a while from the
control panel movements. 2. All voltages are good
on the monitor and the Red LED (D507) is off and
Q504, Q503, R526 are good and the Z input is
there, from the game logic. There is some control
over the contrast and brightness. 3. A sharp tap on
the pix tube neck and the lines come and go.
Solution:
Check the picture tube with a C.R. tube checker. If
not available, go to a local TV repair shop to
confirm the problem.
SPECIALISTS IN
INTEGRATED
CIRCUITS
FOR THE
AMUSEMENT
INDUSTRY
QUALITY IC'S AT BETTER
THAN FACTORY PRICES.
CALL US FOR CIRCUITS
THEY CAN'T DELIVER!
48 Farrand Street
Bloomfield, NJ 07003
(201} 429-0855
(800) 526-1374
PROMs
PROGRAMMED & SOLD
(2516, 2716-2532, 2732 & Bipolars)
SOFTWARE AND NEW GAME
DEVELOPMENT
*
Program
Automation, Inc.
385 Main Street
Suite Number 2
Metuchen , NJ 08840
201 /494-3330