Recent content by TheBurgerKing

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    Help w/99% working A board. Minor Graphical issue.

    This has been repaired. Bad RAM at location 2L. Replaced the RAM chip and the graphical glitches are gone. Lots of troubleshooting with this one. When troubleshooting these boards, especially ram issues, I highly recommend getting female pin headers and socketing the ZIP ram. I cut the...
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    Minigun Supergun - An Open Source Supergun

    I wanted to give a huge shoutout to Elfoam for making me a Minigun Supergun (9pin). The quality is excellent and it works amazing. If you dont want the hassle of finding the parts and building your own, I highly recommend sending him a message. I couldn't be more pleased. He is a bit of a...
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    Help w/99% working A board. Minor Graphical issue.

    Well its not the CPS-A-01. I swapped that out tonight. Same issue. Also swapped out some of the LS245s. On a side note, I did fix another A board and C board. The C Board was tricky. It would randomly cause color issues on boot. If you reset the board a few time, it would display...
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    Help w/99% working A board. Minor Graphical issue.

    As popular as this hobby is and all the MiSTer progress, I am shocked there isn't one already.
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    Help w/99% working A board. Minor Graphical issue.

    Thank you for the offer. Since this is just one board, I will grind it out. Now if I decide to fix a few others, I will definitely take you up on that offer. I have a Rigol o-scope, logic probe, etc. Fixing old game systems is actually hobby of mine They are way more straight forward...
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    Help w/99% working A board. Minor Graphical issue.

    Yup. I read the chips are more reliable due to manufacturing changes. Don't know how true that is. I would think if the the A-01 chip was bad, the graphical issues would be much worse. What I am experiencing is so minor. Then again, these boards are unpredictable.
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    Help w/99% working A board. Minor Graphical issue.

    Let me know if you ever figure out what the issue is.
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    Help w/99% working A board. Minor Graphical issue.

    Using MAME to simulate the error, great idea. Thank you for the suggestion. As for the helper tool, definitely pricey. Especially if I only use it for this one board.
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    Help w/99% working A board. Minor Graphical issue.

    Thanks for the tips. Hopefully the CPS-A-01 isnt failing. These A boards are difficult to troubleshoot since a majority of the board is covered by the B board. I suspect this is a memory issue. Just a guess.
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    Help w/99% working A board. Minor Graphical issue.

    Anyone have any ideas or recommendations?
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    Help w/99% working A board. Minor Graphical issue.

    I have a CPS1 A board that has a minor graphical issue. B+C boards have been tested on two different A boards and work fine. The shadows and feet of the characters in SF2:CE, have a few vertical lines. Other than that, everything else is perfect. I did some probing on the board and compared...
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    Modifying a 92631C-6 (Battery-less B-21 C-Board) to work like a 90631C-5 (Battery Backed B-21 C-Board)

    After doing some research, it looks like those are Tantalum Electrolytic Capacitors
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    Modifying a 92631C-6 (Battery-less B-21 C-Board) to work like a 90631C-5 (Battery Backed B-21 C-Board)

    Ahh. Thanks. Looks like it says 01 01. Since capacitors usually only have a three number designation, I take it this signifies 101?
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    Modifying a 92631C-6 (Battery-less B-21 C-Board) to work like a 90631C-5 (Battery Backed B-21 C-Board)

    These had some writing on them at one time. Some remnants remain. Its just worn off. I assume these are just polarized ceramic capacitors?
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    Modifying a 92631C-6 (Battery-less B-21 C-Board) to work like a 90631C-5 (Battery Backed B-21 C-Board)

    Wondering if someone could help me out. I just picked up a Street Fighter II CE board set. On my 92631C-6 board, CCX1 and CCX2 capacitors are damaged and worn. Therefore I am unable to read the values. These are the two capacitors that stick through the foam pad. Could anyone tell me what...
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