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Thread: Sega Saturn - splash screen/black screen

  1. #1
    KoF Grandmaster
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    Sega Saturn - splash screen/black screen

    So, I've been using this Japanese Saturn on and off for a year. About a month ago I noticed that I'm receiving a black screen when I power on my saturn 2 out of 5 times.

    The LED will be on, and I can hear the disc spinning. Once I power the saturn off and then back on, it will boot up and work without problems at a 100% rate.

    A few weeks ago, I removed the battery from my console to see if being brought directly to the date/time menu would have any effect on the start up process. It seemed to help significantly and I hadn't received a black screen until today. So, any idea would the culprit could be? I'm guessing it's the laser, but maybe it's a bios problem?

    For the record, I've tried this saturn with/on different

    Power supplies
    Monitors
    S-video cables
    Composite cables
    Games

    The console has never been modified.
    I do have a 4mb cartridge in the slot.

    Thanks.
    Last edited by andsuchisdeath; 05-09-2020 at 04:05 PM.

  2. #2
    Sultan of Slugs
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    Sounds bios related. Anecdotally I have a Japanese Saturn, white model 2, with a region mod switch. Randomly I got the exact same issue as you and was so confused. Turns out the switch was neither in the up down position but somewhere in the middle.

    Set the switch, never happened again.

    I know it’s a different hardware setup, but what you are describing is identical to what I experienced

  3. #3
    KoF Grandmaster
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    Quote Originally Posted by awbacon View Post
    Sounds bios related. Anecdotally I have a Japanese Saturn, white model 2, with a region mod switch. Randomly I got the exact same issue as you and was so confused. Turns out the switch was neither in the up down position but somewhere in the middle.

    Set the switch, never happened again.

    I know it’s a different hardware setup, but what you are describing is identical to what I experienced
    Ok, thanks.

  4. #4
    KoF Grandmaster
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    Are all model 2 saturns the same internally as far as shape goes?

    If I wanted to swap guts with a working unit that isn't great cosmetically is there anything I need to be aware of first?

  5. #5
    Just Short...
    As always... :-(
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    No there are revisions and some parts can't be swapped. Power supplies are one. I can't remember but you can figure out what revision you have from the serial number iirc. Sega, Hitachi and Sanyo all made Saturns and different revisions.

    https://segaretro.org/Sega_Saturn/Hardware_revisions
    Last edited by Syn; 05-22-2020 at 01:25 AM.

  6. #6
    Ghost Of Captain Kidd
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    I dont think the serial number is 100% reliable.

    Think the only guaranteed way to know which you have is to open it up.

    Anyway I would get a modern pico PSU for it if nothing else.
    They are not that expensive and will fit any Saturn with the correct jumper settings.

  7. #7
    KoF Grandmaster
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    I just want to make it clear..

    I'm looking to just swap all of the insides from one shell to another.

    Not looking to swap specific parts.

    Doing something like this with externally identical models would still prove to be that much of a dice roll?

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