Dreamcast - Curious problem

Discussion in 'Repair, Restoration, Conservation and Preservation' started by rax, Nov 25, 2013.

  1. rax

    rax <B>Site Supporter 2012</B>

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    Hi eveyone,

    I have a very strange problem with one Dreamcast.

    The console freeze after 1 min but the music still playing...

    And very strange, the VMU menu has desapered from the Dashbord and the console freeze...

    I have the back, but not the items menu. Like this :

    [​IMG]

    Yes : The blue back is on screen
    No : The items menu are not displayed


    I tried to Flach the Bios, nothing...

    I replace the orginal Bios with a Dev Kit one, but problem stil the same...


    Any idea?
     
    Last edited: Nov 27, 2013
  2. bacteria

    bacteria I am the Bacman

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    Might be a loose connection on the video cable or from its connection to the motherboard, unless you're using composite, as VGA/RGB mode needs the console to connect a pin to ground or you get no video.
     
  3. rax

    rax <B>Site Supporter 2012</B>

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    Thanks for your suggestion Bacteria.

    I understand that I have forgot to precise one point clearly.

    I have the back, but not the items menu. Like this :

    [​IMG]

    Yes : The blue back is on screen
    No : The items menu are not displayed
     
    Last edited: Nov 27, 2013
  4. LeHaM

    LeHaM Site Soldier

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    So you have changed the bios? Like actually replaced the chip. Does the dreamcast have any other mods installed (modchip/region mod)?

    Try booting without the controller pcb or the GD drive connected also.
     
    Last edited: Nov 27, 2013
  5. rax

    rax <B>Site Supporter 2012</B>

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    There is no other mods, and no trace of soldering work.

    I try booting without the controller pcb or the GD drive connected, but the system don't boot.
     
  6. LeHaM

    LeHaM Site Soldier

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    have you got another PSU you can try? Maybe upload some HIGH res pictures so wew can have a look at the board,
     
  7. LeHaM

    LeHaM Site Soldier

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    See if any of the IC's are getting overly hot too..
     
  8. bart_simpson

    bart_simpson Dauntless Member

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  9. rax

    rax <B>Site Supporter 2012</B>

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    Well I was thinking maybe some rom failed
     
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