GG Powers off at max brightness - All caps replaced :S

Discussion in 'Sega Discussion' started by kingoddball, Jan 22, 2014.

  1. kingoddball

    kingoddball Member

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    Hi!!

    I have a GG which was working fine after I replaced all mobo caps - But now it won't work unless brightness is down, and when it goes up it powers off instantly: This happens on battery and AC adaptor.

    Anyone have any clue what causes this?
    All caps replaced on: Mobo, Sound Board and Power board all in correct orientation too. :(
     
  2. kingoddball

    kingoddball Member

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    Awww.. No love!

    I've had a thought - Replace the backlight with LEDs, this could remove the faulty voltage hardware?
    Never hurts to try!
     
  3. ASSEMbler

    ASSEMbler Administrator Staff Member

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    Hmm, I would run the power brick on a multimeter, I bet it's internal ac-dc is failing and the voltage is low or not able to deliver rated amperage.

    Use a new, universal psu and get back to us.
     
  4. bart_simpson

    bart_simpson Dauntless Member

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    I had a fault like this i removed the LCD screen and put it in a good PCB hard work but worth it.
    I have had this fault a few times still can't find it out.
     
    Last edited: Jan 23, 2014
  5. Bad_Ad84

    Bad_Ad84 The Tick

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    except it happens on batteries too.
     
  6. ASSEMbler

    ASSEMbler Administrator Staff Member

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    Yeah, missed that bit somehow.

    I wonder if the caps he got were really within spec or not
     
  7. Bad_Ad84

    Bad_Ad84 The Tick

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    Yeah, Id be interested to know what caps you used for the recap.
     
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