SNES 1Chip-02 video garbage issue Help needed

Discussion in 'Repair, Restoration, Conservation and Preservation' started by djcalle, Feb 7, 2016.

  1. djcalle

    djcalle Member

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    Hi Guys,

    Would really appreciate if someone could provide some input on my below issue, any information or suggestion would be greatly appreciated:

    Issue:
    Unmodded PAL SNES 1Chip-02
    The games plays, audio is fine but video is full of garbage, see pictures(main screens of super tennis and SD2SNES):
    http://imgur.com/eP0tdwC
    http://imgur.com/RQde3dq
    The problem is hapening 100% of times I boot up the console and the garbage picture is identical each time

    What I have done so far:
    -Cleaned the cartridge connector.
    -Re soldered all pins of the cartdridge connector
    -Replaced most caps (220uf, 33uf, 47uf) ordered the 2.2uf and 10uf.
    EDIT: Tried composite and RGB with same results

    Questions:
    -Except for replacing the caps I have not done yet, are there any suggestions of what I could do next before I conclude it's a faulty chip and give up?

    -On my older snes the cartridge connector is in 2 parts (the soldered part and another that just snaps on) I have tried to unsnap the connector on the 1chip but I suspect it might be one singe part soldered to the board. Could you guys please confirm?

    Cheers guys
     
    Last edited: Feb 7, 2016
  2. AtomizerZero

    AtomizerZero Intrepid Member

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    Looks like the chip is corrupt. Maybe need to reflow all the chips, might do something to help. Although I do wonder if it might be related to the security chip. Don't quote me on that though.
     
  3. Consoles4You.ch

    Consoles4You.ch Newly Registered

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    Some more information would be nice.
    Has the cartridge itself been cleaned?
    Does it also happen on other cartidges tham the SD2SNES?

    And yes the cartridge connector of the SNSP 1Chip is a onepart piece and can not be taken apart as the early ones.

    I'd suppose eighter an incompatibility betwenn SD2SNES and SNES or an unclean contact somewhere
     
  4. djcalle

    djcalle Member

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    Thanks Atomizezero, I can reflow some of the chips, which ones you think i should I start with? CIC?

    Consoles4you, yes I cleaned both cartridges I tried. As mentioned above and from the pictures you can see that the same issue happens with Super Tennis as well
    Thanks for the confirmation about the cartridge piece.
     
  5. AtomizerZero

    AtomizerZero Intrepid Member

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    Yeh, CIC first, as that's what Street Fighter 2 looked like for a pal snes I had once, which had a dodgy CIC.

    EDIT: To be honest with you though, thinking about it, it's most likely the PPU. If reflowing everything doesn't fix it, it probably means it's time to buy a new one, I'm afraid.
     
    Last edited: Feb 7, 2016
  6. djcalle

    djcalle Member

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    Cheers mate, appreciate the input. I shall try reflowing and will keep you posted.
    out of 6 Snes/SFC I had and cracked open it's the first 1chip and it had to be the first dodgy one as well :( would be really happy about fixing it!

    So, I have reflowed just about everything I could with no difference in result.
    AtomizerZero, when you said your CIC was dodgy, did you mean the solders or the chip?
    I have a spare CIC from a SFC, do you think it'd be ok to replace a F413B by a F411A?

    Another thing I was willing to try was swap the cartride connector with an older 2 part one.

    Does that sound worthwhile?
     
    Last edited by a moderator: Feb 8, 2016
  7. Consoles4You.ch

    Consoles4You.ch Newly Registered

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    If you replace the CIC with an SFC one you will generate a NTSC 50Hz Console.
    Adding a new cartridge might help if there really is a defect contact.
    But I asume that one of your PPU Chips has probably died.

    All in all SNES consoles are the Nintendo consoles where chips break most while time passes.
    I got at least 6 Boards with some dead chips. But up to now swapping them between boards just seemed to much work.
     
  8. AtomizerZero

    AtomizerZero Intrepid Member

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    It was the chip that wasn't working right, as far as I remember. It was like, 10 years ago and I didn't fully know what I was doing.

    I'm 99% sure its the PPU if reflow didn't change anything. Might as well buy another SNES and save that one you have for parts...
     
  9. Bad_Ad84

    Bad_Ad84 The Tick

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    Uh, no. Swapping the CIC doesnt make it a NTSC console at all. You will still have a PAL50 output, but only able to play NTSC games. So you end up with 60hz games running at 50hz. But its still PAL50
     
  10. Consoles4You.ch

    Consoles4You.ch Newly Registered

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    That's what I wanted to say sry
     
  11. djcalle

    djcalle Member

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    Thanks guys, I'll try swapping the CIC, bloody reset switch in the way makes it annoying to do:)
    If that works with jap games I'll then do a region mod. not too fussed since i'll be using SD2Snes

    If that fails I'll give up. I do want to find a working 1chip now.
    thanks for the responses guys, much appreciated.
     
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