Arcade Collecting > Restorations & repair
Centipede Mini Restoration
SirPeale:
--- Quote from: Peale on August 23, 2008, 09:54:50 pm ---So...what kind of ROM chips does Centipede use? I consulted the drawing set, all it lists is an Atari part number.
--- End quote ---
Was finally able to pull the board out to examine. It's got 9316 ROM chips on it. According to Mikes Arcade, they're nearly impossible to source.
Recommends replacing with 2716 instead with some minor work.
http://www.mikesarcade.com/cgi-bin/spies.cgi?action=url&type=info&page=9316.txt
ChadTower:
Hey nice site... and for once I can see it from where I'm sitting.
SirPeale:
And reading further into it 2716 is a direct replacement for 9316B, which is what I've got. Good, that makes the replacement a cinch.
Now to find a really cheap place to get them.
Level42:
--- Quote from: Peale on August 25, 2008, 10:36:43 am ---And reading further into it 2716 is a direct replacement for 9316B, which is what I've got. Good, that makes the replacement a cinch.
Now to find a really cheap place to get them.
--- End quote ---
I've seen about 5 Centipede boards now. All but one had EPROMs on them. The other one had ROMs. Don't remember what types, but I don't think the board needed any modification for either.
SirPeale:
I was talking with James Sweet on RGVAC. He said that the ROMs go bad on these very rarely. Likely it's either a bad socket or something in the addressing line has gone bad. I need a logic probe. And a bit of know-how.
I wish I had a spare set of ROMs so I could rule them out. I had to solder new legs onto one of the chips. Coincidentally it's one of the chips that, if I'm reading correctly, is giving me an error. I get errors 2 and 4 in self test.
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