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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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Pokie machine service help
Hi all
To those with experience servicing these....I have just obtained a couple of the older variety with the 5 spinning wheels (lucky lines and lucky hearts if that matters), both with the same problem. A couple of seconds after it's switched on all the wheels begin rotating and don't stop. I assume it's performing some kind of self test, and when you shut the front the display on the front says "power up" with a credit level of 9, a coins played value of 5 and a coins won value of 0. I would have thought those numbers would all begin at 0 so I'm thinking it's displaying a fault code. I'm concentrating on the power supply area at the moment to make sure it's brains aren't being scrammbled over noise, but I think that's a long shot as some things are registering (i.e. missing wheel, wheel tilt, door open/close). Have re-socketed all ICs as well (I have seen this to be a problem in old stuff). All help greatly appreciated JD -- Zoom! Zoom! For every action there is an equal and opposite government program. |
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Just in case anyone was watching this out of curiosity...
I found that by removing the game PROM, turning it on, then off, then re-inserting the chip it caused an error "bad cmos ram" which in turn forced a reset of some kind which gave me some options and then it fired up and now plays good as new ...well good enough for home use JD "Jonathan" wrote in message ... Hi all To those with experience servicing these....I have just obtained a couple of the older variety with the 5 spinning wheels (lucky lines and lucky hearts if that matters), both with the same problem. A couple of seconds after it's switched on all the wheels begin rotating and don't stop. I assume it's performing some kind of self test, and when you shut the front the display on the front says "power up" with a credit level of 9, a coins played value of 5 and a coins won value of 0. I would have thought those numbers would all begin at 0 so I'm thinking it's displaying a fault code. I'm concentrating on the power supply area at the moment to make sure it's brains aren't being scrammbled over noise, but I think that's a long shot as some things are registering (i.e. missing wheel, wheel tilt, door open/close). Have re-socketed all ICs as well (I have seen this to be a problem in old stuff). All help greatly appreciated JD -- Zoom! Zoom! For every action there is an equal and opposite government program. |
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