Technical
Tips
Tip 1
SITUATION: In Bally's electronics
flippers the ball fails to kick out of the
outhole .
SOLUTION: Replace the utility
ROM E720-20 ; which has been used
in position U-6 MPU modules
AS2887-2 , AS2887-3 , AS2887-4 ,
and some AS2887-5's to a E720-21.
This can be used to replace
E720-20's used in Night Rider, Euel
Knieuel, Eight Ball, or Power Play
MPU boards as listed above .
Atari
Interchangeability
By Fred McCord
So it's Friday night at the pub and your brand new Atari Middle Earth
decides to eat a linear coil. Oops, you don't have an Atari coil in your bag
of tricks? Well , maybe the following interchangeability chart should get you
out of trouble . Two things are important, however:
1. The information is based on current games . Therefore, it is possible that
there may be other coils from older equipment that would work . However,
without adequate testing on a particular part, we cannot recommend
random replacement.
2 . It is also important that the footnotes be read and heeded .
Tip 2
SITUATION : Method of play
adjustment for coins in Midway's
Clowns .
INTERCHANGEABH..ITY CHART WITH ATARI DEVICES
MANUFACTURER/Part Number
SOLUTION: In all play adjust-
ments, except one-coin - one-play-
er, and two-coin - two-player, the
TV screen blanks out when a coin is
deposited . (No loss of coin .)
Selecting a one- or two -player
game when pressing "select player"
button returns TV screen to a normal
play mode .
ATARI DEVICE
SITUATION: Midway Clowns
game over delay and coin operation .
SOLUTION: When the game is
turned on or reset via coin door
switch (tilted) , a new game will not
start with a coin for about fifteen
seconds .
The coin will register during the
game over delay and a one or two
player game can be selected after the
delay period .
-By Stephen Perry , editor, Elec-
tronic Amusement Report
STERN
BALLY
WH..LIAMS
Flipper t
. . .
A0-25-500 /
34-5050 #
...
Sling Shot
A-5195
AN -26-1200
J -25-1050
G-25-1100
J -25-1050
G-25-1100
J -25-1050
G-25-1100
Thumper Bumper
Drop Target
Tip3
GOTTLIEB
A-5195
. . .
tt
AN-26- 1200
...
tt
. ..
#
May not be used for an extended period because it is likely to shorten
the life of the flipper button switch
t Interchange only with Atari part no. A020470-01 (Orange wrapper)
coil. DO NOT REPLACE the retrofit flipper coil (Red wrapper) Atari part
no. A020498-0l with any other coil
tt Thumper Bumper action will be noticeably weak
• It is required that the diodes be replaced with IN4005 diodes before
installing these coils in Atari machines
• • • DO NOT USE- Tested and found unacceptable for use in Atari
machines