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(Topic ID: 73533)

Game Plan Board Repairs - Shotgun Guides w Pix

By viperrwk

10 years ago


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  • 233 posts
  • 51 Pinsiders participating
  • Latest reply 4 years ago by Daniel
  • Topic is favorited by 87 Pinsiders

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#197 5 years ago
 
JER

pinballj

Pinside+ Frequent

US Louisville, KY

13y 82,550 434 24 8

Quoted from Chisel:

Hello, everyone I have a sharpshooter II i'm working on with zero LED flashes right now. No corrosion damage at all on the board. Its setup to take 2716s and I've verified that is done correctly. All voltages on the rectifier board are correct, but still no flash. The GI comes on, the sound card boots up with LED flashing but MPU does nothing. I'm getting ready to shotgun the ICs I guess, at least the z80cpu, ctc, PIA and ROMs.
My question is hopefully a simple one. Is the Z80 and Z80A compatible? Can I put the Z80A cpu in these boards? Oh, I guess I'll test the LED too!

Yep, they are compatible. The clock on the MPU is 2.4mhz and some change...so Z80, Z80A or B will be fine.

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