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Amot

Unusual find today mpu3

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23 hours ago, Amot said:

Few pics of board anyone any idea what the chip I've isolated maybe

15721309010384643739188622162954.jpg

15721309326454994533510397611861.jpg

Could this be a single use prom ie dream machine for the d-prom?

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Took the sticker off and under a magnified lens can make out what looks like 41-1j 05 and to the left a manufacturer stamp I cant quite see

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That is most likely a mask ROM that contains generic code that is sued in all the video games ( like the one in MPU2).

The actual game ROMs would be on the card that plugs into the blue socket.

What are the 3 large 40 pin ICs?

Edited by Wizard

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Thanks wizard I'd just got the same answer talking to magik heres a close up of them cheers

15722954063563038862582854444151.jpg

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No idea what that SC80816P chip is, couldn't find any info at all online for it

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