Arcade Collecting > Pinball
Rebuilding a Gameplan MPU-1
ChadTower:
Almost all of my spare Berzerk ZPUs have broken switchbanks. Probably rough handling.
You shouldn't have to socket them. They rarely change anyway - just get it all cleaned up and put in some new ones. They won't get hit with that style acid again once you relocate whatever caused that.
SirPeale:
Sandblasted the board today. Yes, it's an extreme measure. Yes, it needed it.
Should have taken a "before" shot. Didn't.
I've got my work cut out for me. I was going to try and salvage the non-socketed chips, but they're too difficult to remove without damaging them. So I'll replace them.
Anyone have a schematic handy?
lilshawn:
the foxy lady uses a mpu-1 system and they are basically the same..... this is for "chuck-a-luck" most schematics should match.
http://www.ipdb.org/files/3020/Gameplan_model_110_schematics.pdf
SirPeale:
--- Quote from: lilshawn on February 02, 2010, 05:11:45 pm ---the foxy lady uses a mpu-1 system and they are basically the same..... this is for "chuck-a-luck" most schematics should match.
http://www.ipdb.org/files/3020/Gameplan_model_110_schematics.pdf
--- End quote ---
I was just looking at that, but that's not what I'm looking for. I'm looking for the schematic for the AS-2518-35 that's in it. A couple of the chips I need to replace had the numbers removed when I blasted it, plus a few other parts. Besides, its a good idea to have it.
ChadTower:
--- Quote from: SirPeale on February 02, 2010, 05:03:39 pm ---Should have taken a "before" shot. Didn't.
--- End quote ---
--- Quote from: SirPeale on February 02, 2010, 05:14:33 pm ---A couple of the chips I need to replace had the numbers removed when I blasted it, plus a few other parts.
--- End quote ---
Double ouch! :-\
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