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(Topic ID: 70526)

Hot Tip help needed please.

By Arcade

10 years ago


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#8 10 years ago
 
LAZ

Slate

Inactive member

Unknown

13y 28,400 633 6 18

Ahh, so you got the Ebay find. I was watching it. Looking to pick one up since its war the first game I ever played in the 80's.

When it boots up count how many times the diag light on the MPU flashes. That will tell you which are to look.

Flicker: MPU reset good, program booted.
1st Flash: ROM Checksums OK
2nd Flash: U7 6810 ram OK
3rd Flash: U8 5101 ram OK (U8 & U13 on mpu-200)
4th Flash: U10 PIA OK (see details for caveats)
5th Flash: U11 PIA OK (see details for caveats)
6th Flash: U12 555 Display interrupt timer OK
7th Flash: Zero crossing interrupt detector OK (solenoid voltage present)

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#13 10 years ago
 
LAZ

Slate

Inactive member

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13y 28,400 633 6 18

Quoted from GListOverflow:

This info is for old Bally/Stern, Hot Tip is a Williams System 3
Here, it would probably be helpful for you to read through this: http://www.beerorkid.com/pin/System%203-7/
Apologies to Clay, it is for a good cause but if he wants I will remove the link

Wow, I must have had Brain Freeze. For some reason I always thought it was a Bally.

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