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Factory Settings Restored.
This message indicates that the CMOS RAM
(UB)
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 +4V, 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. (Readings taken with an analog meter.)
This error message can also indicate that there is an open diode on a 50V coil and noise is
entering the circuit.
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. Go to U.4 of the Utilities Menu and set the time and date.
CPU L.E.D.s
The CPU has three L.E.O.s located on the upper left side of the board 019, 020, and 021. On
game power-up 019 and 021 turn On for a moment then, 019 turns
Off
and 020 starts to blink rapidly.
021 remains On. The system has detected a problem if the following happens:
CPU Board L.E.D. Error Codes
020 blinks one time
020 bUnks two times
020 blinks three times
ROM Failure U6
RAM Failure
US
Custom Chip Failure U9
Sound Board Beep Error Codes
Upon Game
Turn-On:
1 Beep
""
Sound Board OK
2 Beeps
""
Sound RAM Failure
3 Beeps
;;;
U18 Failure
4 Beeps
U15 Failure (if used)
5 Beeps
'"
U14 Failure (If used)
FISH TALES 1·30
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