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emccann86

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Posts posted by emccann86

  2. Posted · Edited by emccann86

    ok so my parts unit came in yesterday and i scrounged the SRAM but there was no change gonna start swapping piece by piece till I get change

     

    UPDATE: swapped of the R03-9504-021 ROM and if fired right up! just gonna run a few other carts through it now

     

    update 2: ran 5 carts they all worked noticed a small amount of intermittent screen bounce/jumping but I can live with it

  4. Posted

    The STIC is a graphics processor. Is it possible that pin is a reduntant power supply pin or unused? Did someone already attempt repair and solder the shield back together?

     

    How many different cartridges did you test? Maybe clean the cartridge slot as Kyljoy suggested.

     

    I tested four different carts all had the exact same text in the flash, I also don't know the history of this console to answer that, but it most definitely had all the tabs soldered

     

    I would swap the STIC AY-3-8900 and RA-3-9600 SRAM with known working ones if you have access to another unit.

     

    Attached is a board layout.

    unfortunately I haven't found another 2906...yet, and thanks for the img

     

    After you power the console on, have you tried to press the reset switch?

    yes I tried the reset button on all four carts but to no avail

     

     

    To attach a photo, click the orange "More Reply Options" button just below where you type in your message. On the new page, you can add photos by clicking the blue "Choose Files...".

     

    Make sure you are using the full WWW site and not the mobile version.

    thank you here's the STIC

     

    and thank you all for your help and suggestions I'll keep you updated as this all moves (hopefully) forward

    post-49392-0-40533200-1484864020_thumb.jpg

  5. Posted · Edited by emccann86

    ok so i desoldered to tabs to open up the case........what fun!! then i started prying up to roms and they all looked clean so i wanted to check the ones with the heat sinks

    and the first one I pulled looked like this......ok well I can't seem to upload a pic because I must be dumb. but the bottom says STIC and there is a single bent leg in the corner...and I mean it's tucked way up under

     

    Edit: ok so I straightened it out put it back in but still the same symptom green, flash, green, black. I tried to make out what it says in the flash from what I can tell its E E E E E M M then below it is a ton of vertical white lines

  8. Posted

    so i went and bought a 2609 the other day but when i turn it on i get a green screen, followed my a short flash of text, a green screen and then darkness. what's happening and can it be repaired?

     

    ive check the transforme and the powerboard they check out fine.

    ive also tried it with the controllers unplugged to no avail

     

    any help with this would be amazing

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