Recent content by Tpolzin

  1. FS Parts: SC-01 Chip - free to a good home

    ******gone!**** I have a (I believe) working SC-01 chip from a Gorf card. It comes complete with no guarantee and includes free letter-post shipping. Please, it needs to go to someone who needs it, not for resale. Respond with your name and address to: rotation at polzin dot ca. I will post...

  2. Rotation VIII

    George: You have a lot of patience. Next time your there, you can set the options to free play through the keypad. Option 18 as I recall. You can also make play a bit more challenging by separating targets 1/9 and 2/10 from 3/11 and 4/12. The keypad operation is not terribly intuitive. The...

  3. Anyone interested in fixing a Pinball PCB in Chicago burbs?

    I think John Robertson has done some work with the Bally Home machines. http://www.flippers.com/catalog/product_info.php/replacement-bally-home-pinballs-p-2797 Tim

  4. Rotation VIII

    I guess I was tired yesterday. I forgot a jumper. Fixed that and the board booted with no errors. Going to run it for a while to burn it in. This one will be available very shortly. Tim

  5. Rotation VIII

    There are a couple of them. Wong data lines, reset not connected. Finished second board, but with a problem. Set it aside until tomorrow. First board is solid.

  6. Rotation VIII

    Been running on my test machine for the last day. I'll leave it on for a while and play a game or two periodically. Actually, the mistakes were not revisions, but real mistakes. Reset line unconnected, inputs crossed to wrong chips and two data line connections to the wrong data line...

  7. Rotation VIII

    Found the last glitch on the replacement board. The factory schematic had three errors! The first I found when I was doing the board design. The second and third I found after I had the prototype boards done. Tomorrow I assemble the second board. Tim

  8. Rotation VIII

    New Logic Board Amazing number of machines in just this situation. Here is what I think happens: 1) Machine fails due to the inherently unreliable daughter board and takes with it a couple of buss and driver related chips. 2) Tech says "Oh, I can fix it, send me the board" 3) Tech gets it...

  9. FS Game: Lot of old untested boards

    I'm very interested in IMG-1542. Would $20 plus shipping to Alberta Canada work? Tim

  10. Rotation VIII

    Check out my website www.polzin.ca Tim

  11. FS Parts: Lot of 3 Williams displays - $50

    Displays PM sent Tim

  12. FS Parts: Wizard of Wor Boardset

    I've got 4 offers. I'll work back from the first received. Tim

  13. FS Parts: Wizard of Wor Boardset

    How does $25 plus shipping sound?

  14. FS Parts: Wizard of Wor Boardset

    Wizard of Wor boardset missing the two 0066-117XX 40 pin chips on the Game Board, otherwise complete with card rack. Untested as I have no way of testing any of the boards. $40 US plus shipping. Located in Canada. rotation at polzin dot ca

  15. Any idea what this board is from?

    Answer! Turns out to be a Bally Home Pin MPU. Tim
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