STAR*TECH Journal
May 1987 [BJ
Vending: Automatic Products
SNACK Machines Lost Memory
Williams F-14 TOMCAT
Shorting Condition
By John Batistic
Cleveland Coin Machine
Cleveland, Ohio
By Todd Erickson
Sunmit Arnuserrent
st. Paul, Minnesota
SUl3JErl': Lost Menory on 4000/5000 Control
Boards
Since the release of F-14 'I0-1CAT by
Williams, a few minor problems have
occured. The first and rrost serious is the
failure of the Q 42 on the switch matrix.
This is caused by a shorting of the 28
volt lamps behind the "O" and the "A" of
'101 CA.T, to the respective switches on the
upper playfield.
There has been complaints about lost
IIeIOOry on the 4000 and 5000 series
snackshops.
•
All Single and two piece 4000/5000
control
boards have a non-rechargable 3 volt
lithium cell battery for back up, should
the vendor lose power the battery will
retain the rrerrory.
Should the battery becorre weak or dead and
the vendor loses power, the IIeIOOry will be
lost. It will require sorreone to reprogram
the vendor.
Williams is now reconD"rending renoving the
bulbs and sockets behind the "O" and the
"A", and they will be releasing shortly a
service bulletin to STAR*TOCH JOURNAL and
to their distributors.
*
The normal complaint for lost rrerrory is
that the vendor will only accept one coin,
(nickel, dirre or quarter) , and the second
coin is rejected.
The battery on the control board may be
checked with a OC volt rreter. The volts
that the battery should read is printed on
the battery. Do this test with power to
the board turned off. This checks the
battery under actual working conditions.
Should you have a defective battery a
replacerrent battery may be ordered under
part nurrber 380248. The battery is
soldered to the control board and caution
rrust be taken when replacing a battery.
Cl::>serve polarity as it is not the sarre on
the single-piece board as on the two-piece
board.
TROUBLESHOOTING ELECTROHONE
WELLS GARDNER MONITORS
&
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monitors used in the Coin-Operated
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This very thorough and detailed manual
covers every aspect of monitor repair
including: Power Supply Section - symptoms
and solutions. CRT Construction and
Operation -brightness problems and
solutions. Oeflection Circuitry -sync
circuit description and troubleshooting.
Color Problems -including degaussing,
purity, white balance and convergence
adjustments.
Troubleshooting Electrohome & Wells
Gardner Monitors is priced at $19.95 [US]
plus $2.50 shipping.
*
Distributed by STAR*TECH JOURNAL.
POB 1065, Merchantville, NJ 08109.