Riverboat Gambler
Williams, 1990Hello
I am trying to fix a fixer oat gambler for a friend.
It was his late fathers game and it means a lot to him,
The game gives me three sound cues when it starts.
GI is working.
The LEDs on the MPU are
Left , solid
Middle, flashing
Right, solid.
Speaker, display and coils work but game won't boot.
Thanks for you help
Three Tones I think indicates a U4 problem.
How many times does the center light blink?
http://www.pinwiki.com/wiki/index.php?title=Williams_System_9_-_11#System_11A.2C_11B.2C_11C_games
4.4.2.3 System 11A, 11B, 11C games
The following table lists the number of blinks, the error message that might be displayed, and the explanation (Source: Williams System 11A game manual. with embellishment).
MEMPROT FAILURE, (use browser page search to find in page link)
Code Description Notes
0
no message Normal game boot with no problems detected. The game should be in attract mode.
1
U25 RAM FAILURE The RAM at U25 could not be used properly. This means that the RAM failed a read/write test at power up.
The game will remain in the current state and no other tests are performed until the game is turned off, then back on.
2
MEM. PROT. FAILURE This message means that either:
a) the Coin Door may be shot,
b) the Memory Protect Switch may be stuck in the ON position,
c) the memory protect logic is protecting the memory, or
d) a U25 RAM failure is occurring.
3
U51 PIA FAILURE The PIA at U51 has failed.
4
U38 PIA FAILURE The PIA at U38 has failed.
5
U41 PIA FAILURE The PIA at U41 has failed.
6
U42 PIA FAILURE The PIA at U42 has failed.
7
U54 PIA FAILURE The PIA at U54 has failed.
8
U10 PIA FAILURE The PIA at U10 has failed.
9
IRQ FAILURE The interrupt request line is not working normally. It may be missing, stuck, too fast, or too slow.
10
U27 ROM FAILURE U27 failed checksum (test 11 is skipped).
11
U26 ROM FAILURE U26 failed checksum.
All of the above failures (except #9) may mean that the device has failed but it may also mean that the 6802 microprocessor is unable to communicate adequately or properly with the device. For example, if the CPU is attempting to checksum the game ROM at U27, but one of the 8 data lines leading to U27 has been severed, the wrong data will be received by the microprocessor and the checksum test will fail even though the ROM is perfectly fine.
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Hudson, NY