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Factory Settings Restored.
Repeated appearance of this message indicates that the CMOS RAM no longer
retains any custom Pricing or Game Adjustment settings and has reverted to
factory default settings. Generally, the following CPU checks will isolate the cause
of the CMOS RAM memory failure. The voltage at pin 28 and pin 26 of U8 should
be +5V (game turned On) and at least +4V (game turned Off). When the voltage
drops below +4 V, memory reset occurs. Check the batteries and battery holder.
Be sure that the batteries are good and that there is no contamination on the
battery holder terminals. Turn the game OFF, and use an ohmmeter to check
diodes 01 and 02 on the CPU Board. 01 should read
0
ohms when forward-
biased and infinite ohms when reverse-biased. 02 should read 15 ohms when
forward-biased and infinite ohms when reverse-biased.
U6 Checksum Error.
The game ROM checksum is invalid. If this occurs replace the game ROM.
Time and Date Not Set.
The real time clock is not running. If this occurs go to U.4 of the Utilities Menu and
set the time and date.
The CPU has three L.E.O.s located on the upper left side of the board. On game power-up the
top and bottom L.E.D.s turn On for a moment then, the top L.E.O. turns Off and the center L.E.O.
starts to blink rapidly. The bottom L.E.O. remains On. The system has detected a problem if the
following happens:
CPU Board L.E.D. Error Codes
Center L.E.O. blinks one time
Center L.E.D. blinks two times
Center L.E.D. blinks three times
ROM ErrorU6
RAM ErrorU8
Custom Chip Failure U9
Sound Board Beep Error Codes
Upon Game Turn-On:
1 Beep
=
Sound Board O.K.
2 Beeps
=
U9 Failure (RAM)
3 Beeps
=
U18 Failure (ROM)
4 Beeps
=
U15 Failure (ROM)
5 Beeps
=
U14 Failure (ROM)
PARTY ZONE 1-44