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Thread: Dimahoo (CPS2) dead, but battery is good?

  1. #1
    Just buy my shit. Seriously. You can call me Susan if it makes you happy. mmsadda's Avatar
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    Dimahoo (CPS2) dead, but battery is good?

    I picked up a Dimahoo from a reputable member recently, supposedly working, with a battery replaced about a year ago. It's not working, just giving a single-color screen. I've tested it with a few different cabinets and A-board (thanks to Terry.330) and had no luck.

    Has anyone run into anything like this before? Any thoughts?
    -Susan

    Quote Originally Posted by Coryoon View Post
    This guy [MmSadda] should have "real doll seller" written under his name
    ^do it.

  2. #2
    Hades Gate Keeper
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    1. Did you open the case and check the battery for problems (you know like leakage or deadness)? And,

    2. Did you try Raz's Suicide CPS-2 Game Board Tester rom on the board?

    http://cps2shock.emu-france.info/download.html

    http://snutt.net/arkad/suicidetester/readme.txt

    If not, then back to work.

  3. #3
    Choi's Barber
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    What color is the screen? Do you have the clips to secure A/B boards together?

    Try de-casing the A and B boards and plugging them together that way as well.

  4. #4
    Just buy my shit. Seriously. You can call me Susan if it makes you happy. mmsadda's Avatar
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    Quote Originally Posted by Tyranix95 View Post
    1. Did you open the case and check the battery for problems (you know like leakage or deadness)? And,

    2. Did you try Raz's Suicide CPS-2 Game Board Tester rom on the board?

    http://cps2shock.emu-france.info/download.html

    http://snutt.net/arkad/suicidetester/readme.txt

    If not, then back to work.
    I forgot to mention, I did test the battery and it shows 3.67v (expected voltage is 3.6) So that's good, and the solder joints look good, there's no corrosion or anything else alarming.

    I'll have to look into Raz's test
    Quote Originally Posted by kuze View Post
    What color is the screen? Do you have the clips to secure A/B boards together?

    Try de-casing the A and B boards and plugging them together that way as well.
    Screen is orange-y, I think, though I believe it was blue or green on my friend's cab.

    I've tried the B-board de-cased, with no luck.
    -Susan

    Quote Originally Posted by Coryoon View Post
    This guy [MmSadda] should have "real doll seller" written under his name
    ^do it.

  5. #5
    SouthTown StreetSweeper
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    I've had this before on a D&D board and it turned out voltage was the issue in that case. Worth checking what you're getting on the JAMMA edge under load.
    My favourite pigeon had a fatal run-in with a cloud...

  6. #6
    Hades Gate Keeper
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    Battery sounds good.

    As mentioned above, make sure the CPS2 board is getting +5.00v at the edge connector (even though CPS2 will boot at like +4.85v).

    And, make sure, other CPS2 (B) boards work in the cab.

    Try raz's rom on the board. A dead B board can boot with it; however, a live B board can not boot with it.
    Last edited by Tyranix95; 02-04-2017 at 03:28 PM.

  7. #7
    CPS2 Person.
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    If I had a dime every time a hoe board wouldn't boot I would be rich. If you tried the B board with different A boards and it will still not boot and I assuming you properly seated the B board then what you need to move onto now is checking it with a suicide tester rom.


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  8. #8
    Hades Gate Keeper
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    You can also double check the program and Q-Sound roms: make sure the roms are firmly seated (pressed down) in the sockets.

  9. #9
    Just buy my shit. Seriously. You can call me Susan if it makes you happy. mmsadda's Avatar
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    Thanks for the replies, everyone! I was showing like 4.87v on the JAMMA harness under load, and cranked it up to an even 5v... still nothing.

    This was a recent purchase, and I sent the seller a message a couple nights ago about how we should proceed; once I hear back from him, likely I'll be trying the suicide test ROM.
    -Susan

    Quote Originally Posted by Coryoon View Post
    This guy [MmSadda] should have "real doll seller" written under his name
    ^do it.

  10. #10
    Just buy my shit. Seriously. You can call me Susan if it makes you happy. mmsadda's Avatar
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    What kind of EPROMs are the ones that need to be replaced when Phoenizing?

    I've got a lot pinball guy who can burn eproms for me, but want to have spares just in case.

    Of course I'm picking up 27C4096 for the test rom
    -Susan

    Quote Originally Posted by Coryoon View Post
    This guy [MmSadda] should have "real doll seller" written under his name
    ^do it.

  11. #11
    SouthTown StreetSweeper
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    It's the program eproms, which are 27c4096s (on Dimahoo should be eproms 3-6). You can erase and reprogram the eproms already installed there if it has suicided.
    Last edited by pulstar; 02-14-2017 at 04:37 PM.
    My favourite pigeon had a fatal run-in with a cloud...

  12. #12
    Just buy my shit. Seriously. You can call me Susan if it makes you happy. mmsadda's Avatar
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    Quote Originally Posted by pulstar View Post
    It's the program eproms, which are 27c4096s (on Dimahoo should be eproms 3-6). You can erase and reprogram the eproms already installed there if it has suicided.
    Thanks for the clarification! I misread something in the testing guide, hence the stupid question.
    -Susan

    Quote Originally Posted by Coryoon View Post
    This guy [MmSadda] should have "real doll seller" written under his name
    ^do it.

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