Willianis System II
Diagnostics
John Michael Bevar
Ries Amusement Inc.
Denison, Iowa
BECKMAN
CAPT6
DIGITAL TEST METER
PROBLEM
When powering up or beginning the self test on
aPinbot, the "Adjust Switch##" came up indicat-
ing a problem. After fixing the problem. the
"Adjust Switch ##" continues to come up on
power-up or at the beginning of the self test.
VERSATILE CAPACITANCE
• 24
& PARTS TESTER
USER RANGES
• TEST CAPACITORS TO
• RESISTANCE
&
20,000
MFD
CONTINUITY
• DIODES • TRANSISTORS
CAUSE
• LEDs • BATTERIES
Well, I tell you, after 5hours of searchings, parts
swapping and a few choice words, I found it. But
it wasn't hardware related, it was software re-
lated!
That's right. Williams System II games have a
NEW capability to aid the operator and service
personnel. I quote, "at the beginning of Test/
Diagnostic or game Power-Up, a display now
signals when a switch has NOT been actuated
during ball play for a lengthy period of time (60
balls or 20 games)."
An Auto/Diagnostic Test that keeps track of and
stores a switch's actuation and then tells you if
it has a problem. That's great but. how do you
clear it when you have found the problem?
SOLUTION
After searching through the manual with no
luck, I found out that you must use the option
"Install Factory Settings" to clear it. In self test.
go to "AD 70 Install Factory," enter "Yes", then
press Advance. the system is cleared.
Remember... this will set everything to factory
settings. you will need to reprogram if necessary.
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