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Author Topic: original tempest Aux board question  (Read 1085 times)

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GMZombie

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original tempest Aux board question
« on: February 08, 2009, 01:37:03 pm »
this should be an easy answer but is there supposed to be 6 big z80 like size chips on the aux board or only 2. the 2 are audio I/O N-Channel MOS/LSI Custom chip

but the 4 spots where i believe the other ones are missing are well its called in the manual a transistor array...

im lost on this and wonder if they even had chips in there. thanks for the answers
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Paladin

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Re: original tempest Aux board question
« Reply #1 on: February 09, 2009, 12:21:44 am »
The chips should all be there.  Here's a picture of the aux board.
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GMZombie

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Re: original tempest Aux board question
« Reply #2 on: February 17, 2009, 10:38:49 pm »
anybody know what those chips do...or where i can get a new set of them
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Daviea

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Re: original tempest Aux board question
« Reply #3 on: February 19, 2009, 05:24:49 am »
Those are AM2901 chips which are bit slice processors.  Essentially, they process the vector math for Tempest, Battlezone, etc.  You can get them from www.coinopchips.com.  Look for them in the CPU/Processors section.

Good luck.

David Adams
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Quote from: GMZombie on February 17, 2009, 10:38:49 pm
anybody know what those chips do...or where i can get a new set of them
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