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Type: Posts; User: mykrowyre

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  1. Hi, this is an old thread but I am interested in...

    Hi, this is an old thread but I am interested in this C compiler. The drop box link is dead, and I haven't found it archived on any other TRS-80 site which is strange.

    Has the complete set been...
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    Model 4 scuffed up case cleaning

    I've had a few Model 4's and there is always a good dark scuff somewhere that I can't remove. I've tried simple green, alcohol, dish soap, magic erasers, all with only moderate success.

    My most...
  3. For the membrane keyboards, why not heat the...

    For the membrane keyboards, why not heat the plastic pins with a heat gun to pull the metal plate, and then again to re-squash them?
  4. Making boot disks from older DOS version via FreHD ?

    I have a collection of games on my FreHD LDOS 531 image. I'd like to make a boot disk of that OS so that I can copy those games to floppy and play them on my other Model 4 (which does not have a...
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    26-1069. The A is the gate array version I...

    26-1069. The A is the gate array version I believe.
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    Just realized I accidentally typed 4D earlier in...

    Just realized I accidentally typed 4D earlier in the thread ... it's not a 4D it's a late model 4 with green screen and clustered keyboard (26-1069)
  7. Thanks this worked for me.

    Thanks this worked for me.
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    I put an 8" CDC-1 floppy drive up on ebay if...

    I put an 8" CDC-1 floppy drive up on ebay if anyone is looking for Netronics floppy drive parts. Starts at $25.
  9. How to access floppy drives after booting into FreHD ?

    I'm new to the TRS-80 model 4.. I've booted from FreHD in LS-DOS 6 and managed to import some disk images (cobol) to my hard drive partition.

    I wanted to also write a real floppy of the cobol...
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    TRS 80 model 4 non-game software

    I'm not interested in games, but I would like to know what type of productivity software was available for the TRS 80 model 3/4

    Primary interests:

    Model Rocketry
    Astronomy
    Electronics...
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    Model 4 Keyboards (squeaky?)

    I have two model 4's, one with clustered keys and one with the original style keyboard.

    The original keyboard had the typical key switch problems, and I rebuilt it (if anyone wants this done i may...
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    I sold this one about 5 years ago. It was a 4...

    I sold this one about 5 years ago. It was a 4 with a green screen and clustered keys, but the bottom case was different... I *think* there was an RS232 connector there but I can't remember. It did...
  13. I tried everything to get it to spin the disk,...

    I tried everything to get it to spin the disk, tried the routine for booting the PDD2 disk utility and it would not spin.

    I finally disassembled everything and ran a jumper from B+ to the motor...
  14. Belt is fine, sorry forgot to mention that.

    Belt is fine, sorry forgot to mention that.
  15. Portable Disk Drive 2 - possible repair help

    I just purchased a model 100 which came with a PDD2. I've owned the original PDD in the past, but it was a long long time ago.

    When I turn it on, I would expect the motor to spin briefly and head...
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    Thanks for this!

    Thanks for this!
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    Right I forgot to mention that. When I removed...

    Right I forgot to mention that. When I removed the shield I discovered it is not a gate array. But, it does appear to be a 4D, with a green monochrome screen and a clustered arrow keys.

    I also...
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    Hi Dwight, I understood what you meant. I have...

    Hi Dwight, I understood what you meant. I have been programming for 30 years as a career with no degree. I make as much as some doctors.... my wife who has a masters degree finds it extremely...
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    Hi Simon, I don't think Dwight intended to insult...

    Hi Simon, I don't think Dwight intended to insult anyone, I think he was just trying to encourage us to think "inside the box". I agree, though. I am a software developer, I know have enough self...
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    I haven't figured out how to create a valid...

    I haven't figured out how to create a valid config file. I went to the website and it was clear as mud.
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    I found the problem. C210 on the motherboard...

    I found the problem.

    C210 on the motherboard just near the floppy controller is a variable capacitor.

    Rotating that capacitor just slightly corrected the sync on the 80 col screen. Now it boots...
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    Hi Larry, thanks for the help. I am only working...

    Hi Larry, thanks for the help. I am only working with internal drives. I knew they didn't require terminator resistors, the internal floppy drive cable has pins removed in the connectors for drive...
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    TRS-80 model 4 gate array toubleshooting

    I have a model 4 gate array I just purchased which had a HXC2001 floppy emulator installed and the floppies removed. I came with a pile of disk drives.

    It tries to boot from SD card but I didn't...
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    I would suspect a bad capacitor. Get some...

    I would suspect a bad capacitor. Get some keyboard cleaner (held upside down) or freeze spray. Turn off monitor and spray one small area around a capacitor. turn back on and compare. repeat until...
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    I'm not very familiar with S100 computers. Will...

    I'm not very familiar with S100 computers. Will any S100 floppy controller work with the 8" CDC floppy drives?

    Which ram expansions will work with the Explorer 85?

    Last question, do you have...
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