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Recent content by ianoid

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    MIO Test cassette- what's it for?

    I got this in a lot of other computer cassettes. Does anyone know what it's for? I suspect it's for an S-100 or other early system. I did make a WAV of the contents if anyone wants that, or I'm happy to pass along the cassette for cash or trade.
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    Floppy drive alignment tool?

    When it comes to inability to read other drive's disks for Apple ][ disk drives, speed is usually the issue. Alignment is rarely, if almost never, an issue. Of course, the most common issue with these drives overall is a dirty read/write head. That is assuming you have an otherwise working...
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    Texas Microvideo Interact software FS/FT $25 each

    Anyone into collecting the Microvideo Interact? These are my spare cassettes. I'd prefer to trade for titles I'm missing if you have any to trade. I'm also into software for Apple II and Commodore PET, among others. If you don't have stuff to trade, I'm asking $25 per game, or 5 for $100, or...
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    Who knows something about the old NEC PC-6001A around here?

    I have a similar problem as mbliss11. Recently picked up another PC-6001. I get a blank screen, unresponsive unit. I'm using 120v US wall current. -12 comes up as 13.5 +12 comes up as 16 +5 comes up as 5.4 without load, which may correct with load, from what I'm reading. I found the 4 blue...
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    Does anyone know what this 10 pin cable is for?

    I haven't been able to find any information about what it's for. It came to me with some unrelated computer items.
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    Casio PV-2000 keyboard repair

    Does anyone know where I can get a replacement for the keyboard overlay/panel mount for the Casio PV-2000? I believe someone makes them, although not sure where from. Presumably Japan, considering it's a Japanese system. Pictured is an example of the system with a replacement overlay. Thanks!
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    Is it worth recapping a PCjr power supply?

    I got a unit recently with the external power supply. It outputs nothing when I check it with my meter. I didn’t try it with the hardware, just to be safe. I would like to replace the PS with the PCjr to ATX board and a PicoATX but the former are out of stock from the guy who created them. I...
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    Need help with TS2068 repair

    I ordered a Spectrum Diagnostic cart from the UK, so hopefully that will do the trick. I appreciate the advice and suggestions.
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    Need help with TS2068 repair

    Hello all, I have a 2068 that shows these bars. I figured I'd replace any bad RAM and socket it. Unfortunately I pulled up a few traces but I put (yellow) bodge wires best I could between the RAM legs with the bad traces. After confirming all the RAM is good, what is the next step to...
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    Mindset Video Production PCB uploaded

    I just uploaded some scans that need to be stitched together. The PCB was too wide to get in one go so there are two images of the front and two of the back. I'm not sure if we've seen any of these units out there aside from ads. https://archive.org/details/mindset-video-production-board-0003...
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    Mindset Computer repair help

    As I understand it, the power supply should always have power. It does not have a switch or any apparent communication with the main board for power. The service manual does say that it should put out voltage, which I'm assuming is because it is not load requiring. That being said, I still tried...
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    Mindset Computer repair help

    I recently picked up a Mindset (main unit only with keyboard) and I'd like to get it working. The power supply unit I have does not put out appropriate voltages, essentially zero. I recapped the power supply, aside from the small caps on the boards perpendicular to the main power supply board...
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    5.25" floppy externalizing case or shell?

    Does anyone know of a CNC routed or 3D printed case or similar protective design for used with PC floppy disk drives? The drives I need this for are all half height. I would like something that screws into the side holes and protects the exposed top and bottom the drive. It doesn't need to be...
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    TRS-80 model 4 repair help

    Hi, My Model 4, original version, seems to start up and read disks, but puts out no useful video. I tried break-reset and starting it up while holding the 3 key, the video always looks like this (not with the black bars, which is an artifact of photographing a CRT). The contrast pot is...
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    Recommended DOS shell or menu

    I'm looking for a recommendation on a DOS shell or menu program I can use with a large volume I have setup using an XTide. I have tried a few. Some limit the number of directories they read, and tend to be slow to read the directory structure all at once. Some menus don't work at all using my...
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