(Topic ID: 77391)

Gottlieb Sys80 Universal Tester (Leon design) -- MPU Diagnostic Tool


By acebathound

5 years ago



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  • 99 posts
  • 29 Pinsiders participating
  • Latest reply 2 years ago by acebathound
  • Topic is favorited by 24 Pinsiders

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    #70 3 years ago

    I bought a leon version a few years back to try and resurrect an Amazing Spidey.

    system 80 boards, and under playfield parts needed too much, so never figured out how to use the tester

    this new Marco might be a good investment as not too long ago I brought home a very nice HH sample game ( may be HUO ).

    Also bought a quantity of every pin fuse known to man from CoreyStup here on Pinside.

    I will most likely start a thread when I jump into HH.

    Right now I'm just stocking up on parts supplies . . .

    . . . I can hardly wait, as HH looks like fun, very different from my EMs and DMD pins

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    #72 3 years ago

    I am attempting to purchase one of these testers with EPROM and instead of adding it to my cart, I get a paypal error.

    If I select without EPROM the web site has no problem adding it to the cart

    any Ideas ?

    I guess I could just get it without EPROM and add the EPROM separately in the next web site line item.

    Also, with the G-P-E tester that may be ready for sale soon, what's that puppie all about ( it looks pretty fancy ) ?

    Steve

    #74 3 years ago

    thanks ace I will try again when I get back home

    Might not even need the tester, but it looks kool and I might even be able to figure out how to use it if HH needs it

    Steve

    #77 3 years ago

    howdy Chris, I trust your judgement ! I've watched you help many HH owners back into the light !

    Quoted from ChrisHibler:

    Blasphemy! If you own pins, you need these testers!
    Said somewhat tongue in cheek, but they really do come in handy.
    Here's a short video of the tester working in a correctly operating System 80A MPU.
    » YouTube video
    Here's my interpretation of a "users guide". The description Marco provides is a bit confusing.
    One long blink - ROM is running.
    Short flicker followed by a longer single blink - 5101 tested good.
    Short flicker followed by two longer blinks - U4 tested good.
    Short flicker followed by three longer blinks - U5 tested good.
    Short flicker followed by four longer blinks - U6 tested good.
    I had emailed Marco about adding his tester info to the PinWiki, similar to the way we've added Leon's test articles, which we added verbatim. But Marco plans to create his own page. I thank him for the work he's done on the ROM, and him making it available to us all.
    --
    Chris Hibler - CARGPB #31
    http://ChrisHiblerPinball.com/contact/
    http:/webpages.charter.net/chibler/Pinball/index.htm
    http://www.PinWiki.com - ThePlace to go for Pinball Repair Info

    #78 3 years ago

    thanks for the update, much appreciated.

    Quoted from G-P-E:

    My other job has had me working long hours for more than a year now. We've even hired several new engineers to help distribute the load - and we just got busier. So all my board work proceeds at a snail's pace.
    I recently finished the IRQ circuit for the new test fixture version. Old test fixture had simple 'active' and 'inactive' indicators on it. "Active" would mean the IRQ line appeared to be working and not stuck high or low. "Inactive" simply meant it was either sitting high or low. Inactive could mean a stuck IRQ line or simply running the part of the code that wasn't using IRQs -- it was difficult to differentiate between the two. Current version has "Active", "Inactive" and "Failed" indicators and can differentiate between a stuck low (typically how the RIOT IRQs failed) or inactive IRQ line.
    The problem is - getting time to work on this. Only an hour per week - if I'm luckly. That is why progress has been so slow with this.

    #86 3 years ago

    This is going to be a great diagnostic tool for my haunted house adventures

    Great work, and great price !

    Order placed !

    Steve

    Quoted from MarAlb:

    System 80 test ROM blinking sequence:
    - Long flash ( - ) -> program is running. Clock and reset circuit okay. Communication test ROM <-> 6502 CPU okay
    - Short flash ( . ) -> 5101 tested okay.
    - A burst of 2 short flashes ( .. ) -> the memory of switchmatrix RIOT U4 tested okay
    - A burst of 3 short flashes ( ... ) -> the memory of display RIOT U5 tested okay
    - A burst of 4 short flashes ( .... ) -> the memory of lamp/solenoid RIOT U6 tested okay
    ***********begin extended tests only if extended test ROM is inserted*************
    - A burst of 5 short flashes ( ..... ) -> communication gamerom socket (system 80B: PROM2) <-> CPU is okay
    - A long flash followed by a short flash ( - . ) -> all 4 Timers in RIOT U4 tested okay
    - A long flash followed by a burst of 2 short flashes ( -.. ) -> all 4 timers in RIOT U5 tested okay
    - A long flash followed by a burst of 3 short flashes ( -... ) -> all 4 timers in RIOT U6 tested okay
    **************************end of extended tests***************************
    I/O test starts now.....LED will start blinking continiously.

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