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Taito Space Invaders PCB Repair Log - GG

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  • Taito Space Invaders PCB Repair Log - GG

    GG#2

    I got sent three Taito L-Shaped PCB's to look at for another member.
    I labeled this one GG#2 to keep track of which is which.

    The board was in fair condition but was booting to garbage and resetting.

    https://youtu.be/iCo4pFI7Epo

    I pulled the ROMs to check if they were good and one had a few legs broken (Ceramic chip with gold pins) another checked bad and the other two were okay but had tarnished pins.
    A new set was burnt, they were Space Invaders Part 4 (invader4) so the same rom set was burnt, this is the version with fast shoot, the invaders occasionally split when you shoot them and the UFO shoots at you.

    https://www.youtube.com/watch?v=czLdaNvRJWc

    The sockets were pretty average, one had heavy oxidation on a couple of pins and the rest weren't the best either.



    They were all replaced.

    After powering it up there were still some graphics issues and resetting so I threw a Test ROM in and it reported that one of the RAMs were bad.



    After replacing the suspect RAM the board now boots to a normal screen.

    https://youtu.be/qXyWMjI58uc

    A few games were played and after about a minute there's usually a graphics corruption followed by a reset.

    That's enough for today, I'll get back to it in the next few days.
    Last edited by Kaizen; 14th March 2019, 07:13 PM.
    Namco Starblade - Taito Cocktail 14" x 3, 20" x 2 - NZ SI PtII Upright - Chase HQ DX, Taito Top Speed - Taito Grand Champion - Taito Safari - LAI SI Head to Head Cocktail - SI Cocktail Clone x 2, Pong Clone x 3
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