CDX Bios chip missing from faulty cdx

Discussion in 'Sega Discussion' started by ma214, Feb 25, 2015.

  1. ma214

    ma214 Member

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    Hey all,

    New member and I'm in need of some advice.

    Took a chance on a faulty CDX of of ebay and the seller mentioned nothing about it being thoroughly cannibalised. but I was wondering if it is possible to get a replacement IC 11 to try to get this thing running again? If not I'm looking at taking a loss on this thing and I don't want to.

    I'm unable to flash anything myself but if someone had anything for me can they let me know?

    Really stuck here :(

    J
     
    Last edited: Feb 25, 2015
  2. Bad_Ad84

    Bad_Ad84 The Tick

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    if i remember right, the original bios is a narrower footprint to the eeproms out there, you might need to solder wires in to get a replacement in
     
  3. ma214

    ma214 Member

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    I'd need a new bios chip supplied from someone willing to help a brotha' out first :(

    hell I think this thing is destined to be sold on if the seller doesn't return my message. I, no doubt, will lose money here though.

    annoying. I was really looking forward to adding this to my collection.
     
  4. Kappa

    Kappa Peppy Member

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  5. ma214

    ma214 Member

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  6. Kappa

    Kappa Peppy Member

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    well Bad_Ad94 supplies all kinds of bios' try asking him, he also said that a normal bios might be able to be retro fitted if you're able to solder
     
  7. SONIC3D

    SONIC3D Spirited Member

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    Use a game cartridge to test if it is working.
    If it is,use an overdrive fill with BIOS to emulate as SegaCD BIOS to test if CD ROM is working.

    If the above 2 tests passed ok.Then you should consider fix the BIOS chip on board.
     
  8. dylbob42

    dylbob42 Site Supporter 2015,2016

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    did you end up getting a bios? going from some advice,my cdx my need a replacement bios but i dont have a clue on where to get one
     
  9. supersega

    supersega I have 7 and a half PS1s in my room alone.

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    Don't think its possible. You can easily find a ROM for the BIOS, but the chips are impossible to find. Maybe (just maybe) a Sega CD model 2 BIOS will work with it. It looks the same at the bootup screen in attract mode.
     
  10. dylbob42

    dylbob42 Site Supporter 2015,2016

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    thanks for that.i really appreciate the input. looks like im going to have to set it aside ( i got google fatigue) and keep a eye out for a busted cdx. a working Sega CD seems to be going for what it costs for a busted cdx.
     
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