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archimage

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Posts posted by archimage


  1. Thanks for the answers and the diagram ! I had a confusion between the AY-3-8900-1 and the AY-3-8914.... I should have looked on this diagram before beginning. I just guessed it was this one to replace. I stupidly desldered the chip, et resoldered it after trying. So later I figured out it was the STIC in the center after removing them one by one.

     

    Now everything works fine, the mod is easy but I should have looked to the diagram !


  2. Hello, I have modded mine with the Crystal and AY-3-8900-1 chip, but it was just a messy image without sound.

     

    Now I reverted back to initial components, but I have another problem. The console takes some time to initialize first then the game works, then progressively the sound disappears.

     

    When I let stay off for while the sound comes back, but disappears progressively with some sound bugs, no graphical glitches same steps.

     

    What do you think is my problem ?

     

    I have found the crystal with some leakings, and maybe I have touched something while removing the chip with the heat gun ?

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