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    In hindsight i should have stopped once I tested...

    In hindsight i should have stopped once I tested the eproms. Only 1 chip enable pulsing. Others stuck high. I did replace the eprom controller ic because stuck there also. Must be the inputs which...
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    off to ebay. the donor board chips legs are all...

    off to ebay. the donor board chips legs are all corroded :(

    KAIZEN may have one for me, fingers crossed.
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    went back over other side to 3M. 74LS259 (NB...

    went back over other side to 3M. 74LS259 (NB equivalent chip on tkg4-14 cpu board would be 5H)

    pin9 (NMION), 10 (BLKTRS0), 12 (CREF0) all stuck low.

    when compared with working board 3M pin9 and...
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    Working my way down through video circuit and 4G...

    Working my way down through video circuit and 4G pin 4 NMION is stuck low (active high so OFF) and NMI pin 5 stuck high (active low so OFF). If pin 4 contacts clock pin number 3 - sprites appear on...
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    Donkey Kong TKG-04-CPU board repair

    Hi,

    I have a TKG3-04-cpu board I am trying to get up and running. This is a 4-board stack. Similar if not identical to the radarscope cpu board with readily available cpu board schematics pages 6...
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    all pulsing apart from grounded pin. i then...

    all pulsing apart from grounded pin. i then checked 4H (TKG4 4D) and inputs pulsing but output pins 12,13,14 stuck high. replaced. no change. time for bed now.

    i would next be going to 8F and 7F...
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    Hey. I think I have chased down the same problem...

    Hey. I think I have chased down the same problem on my board so I will be looking at the equivalent LS139 chip on my board tomorrow (2C instead of 2A). The outputs should be pulsing right??
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    i'll have to get one for my cocktail, sick of...

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    Can u just wire outputs from 1st 2 nor gates into...

  10. Facebook probably

    Facebook probably
  11. Cabinet maker recommendation / wood grain veneer source

    Hi,

    Looking for aome help with a tabletop top I need to get veneered. Any recommendations in the Brisbane area mich appreciated. All up prob need 3m x 48mm and 3m x 20mm. Thabks guys.
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    flyback replacement Sanyo 14 AZW

    Hi,

    flyback replacement question. since i am unable to find a replacement flyback for this chassis i'm at a loss. the sanyo 20ez won't work i believe. it is 10 pin. the one i have pulled is 9 pin....
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    Thank you v much. Yeah I thought of an adapter to...

    Thank you v much. Yeah I thought of an adapter to use to reprogram 2532, didn't think about adapting the board to fit 2732.

    PM incoming.
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    Hey. I am just looking to replace the roms on one...

    Hey. I am just looking to replace the roms on one of my boards. US Set 1. 5F, 5G, 5H, 5K.

    Not sure my eprom burner will read them.
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    https://forum.arcadeotaku.com/viewtopic.php?t=1995...

    https://forum.arcadeotaku.com/viewtopic.php?t=19953

    not sure exact model sorry

    https://www.tops-game.jp/products/detail.php?product_id=2610
    maybe this one
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    donkey kong eprom check / program

    looking for some advice or help regarding reprogramming donkey kong 2532 eprom x4 from cpu board. thank you
  17. Replies
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    Yep it is the PSU. I've read that the issue can...

    Yep it is the PSU. I've read that the issue can be fixed with a Sanwa power supply if I remember quickly. Never a problem with neo geo setup or namco board. Any other jamma board seems to do it...
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    Good work. I think there is another one on mikes...

    Good work. I think there is another one on mikes arcade with jamma adapter and inverter built in.
  19. Thread: Sparky question

    by hvc01
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    You're paying twice for the same service.

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    The OP wasn't interested in battery type

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    No it's been going on for years. Just a different...

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    That's a sin

    That's a sin
  23. I’m more interested to know how it works. I would...

  24. I remember you speak a little Mandarin...I cannot...

  25. Thinking of starting a Daigou business but I知 not chinese

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