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    Checksum error on a Toshiba T1200

    Sadly, no, got stuff happening in my life that's preventing me from going much further.
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    Checksum error on a Toshiba T1200

    I don't have the material nor the money for that right now.
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    Checksum error on a Toshiba T1200

    The computer doesn't boot far enough to even ask for a floppy xD
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    Checksum error on a Toshiba T1200

    Alright, I have some updates with this. I finally found the RTC chip not thanks to the manual. It get's 2.4v when the computer is off and 5v when on. I used my logic probe on the RP5C01 and it seems to be accessed and written to when powered on and reseted after I press enter respectively. The...
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    Checksum error on a Toshiba T1200

    Update : I've took the plastic band out and the traces under it look as perfect as the rest of the board. I also touched all the chips and they're all cold. I'm really stuck as to what to do there.
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    Checksum error on a Toshiba T1200

    There's a place on the PCB where there's a thick plastic band on the PCB close to the ram, it's foggy and I can't really see the state of the traces. I'll get some googone and check if there's any damage under it.
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    Checksum error on a Toshiba T1200

    Yes I am, the computer doesn't try to access the floppy drive, it just reboots and ask me the same question again and again.
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    Checksum error on a Toshiba T1200

    Hello ! One month ago, I bought a T1200, it was working perfectly. It's only problem was that the HDD gets stuck after some time, but nothing a little swing didn't resolved. A week ago, I booted the computer and it showed me : A checksum error occurred in the configuration RAM It asks me to...
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    Ethernet card stoped working when added a SCSI controller.

    Hello, So I have a Tandy 1000 SX that is getting pretty complex and I cannot find what the problem is so I'm asking for your help. Before it had a ST11R card with a ST-225 hard drive (I know I know, MFM drive on a RLL controller(It worked falwlessly though)) and with the 3c509 ethernet card +...
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    Problem with 15mb memory hole and a video blaster

    So, the problem is pretty simple, I just bought a video blaster and the card uses the part of memory which is called memory hole at 15mb in bios. The problem is, that my IBM aptiva from 1994 dosen't have this option and I have 16mb installed. So my question is : Is my only option to put less...
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    No-name Ram expansion card

    I have this tp-003 ram expansion card with 512k of ram, but I cannot find any infos on it, does it use some sort of known layout or does anyone have the manual to set the jumpers ? https://img15.hostingpics.net/pics/65206720170531153123.jpg...
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    Is there a way to use a keyboard thru serial port ?

    Hello everyone, Some years ago, I was given a Tandy 1000 SX w/o the keyboard. I just got an i/o card and with ctty I am now finally using it with the serial port. I've just finished installing a zip drive to have more that 2 360k drives but I still have a problem. Since I use ctty com1, I don't...
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