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Hi Lyndon, glad you found your way to VCFED. Welcome! I expect if you give it to JonB, it will end up repaired and working and he will be on the...

Hi Pawel, Here is a working VT-320 on Ebay in Australia: https://www.ebay.com.au/itm/264807042574 This might work out cheaper than trying to...

While I won't declare victory until it is tested elsewhere, this audio bug has been fixed. There was a corner case where a change in the cassette...

I have never needed to do the action. But post #3 at here] is an example of someone doing it.

'V ADJ' potentiometer (RT1). In the SAMS document, read the first block on the 'Miscellaneous Adjustments' page.

Okay I think I figured that parts list out by guessing what it might be. 474032 - 74LS32 474008 - 74LS08 404049 - CD4049 335529 - MC1489...

Well, low and behold I get 14V across C23 while it is disconnected from the main board which is what I expected! I had replaced C23, a few bad...

The DIP switch connects the vsync IRQ, 5, to the video circuitry. It does not turn off the video unless the program relies on that feature, and few...

I just tried the method used in this video at around the 18:00 mark to write and read memory: https://www.youtube.com/watch?v=7afup03v7xw Is it...

It was almost a year ago that I worked on that Compag, but I think you can find the step-by-step instructions by searching on the model #. If I...

Thanks for the suggestion. Interesting idea. I'll try putting some shielding or something around the flyback. I am 100% positive that there...

Doh.. Typed me numbers backwards. Thanks for the catch and the answer Chuck!! :)

"...in the tandy parts list is a 675a" No, it's a NEC D765A, also known as the µPD765A, cross-licensed with Intel as the i8272A; licensed to other...

After powering it on hold down the <BREAK> key and press the orange reset button. With any luck you'll see the Cass? prompt. Press <ENTER>...

One of my IIgs'en does this too. The noise is just the machine telling you that it loves you, like a cat does. ;3 It's never caused any trouble. ...

I keep forgetting to mention, I have two of these but I'm just going to focus on ONE right now, even if they both have the same problem. I tried...

This terminal has been sold!

Is this something that can be done without removing the stepper from the drive?

For the TM100-2A, some people have reported fixing a seized/partially-seized stepper by putting WD-40 into the stepper.

Quote: "not quite the same". Explain, ideally with examples. And SAMS would have made their measurements under load, and so that should be the basis...

The one I have near me is an IBM ActiveScroll mouse (Model MOSZW) with a copyright on the box of 2000. It comes with a PS/2 to serial adapter in the...

So far I have been able to determine this is a Biostar motherboard with a MACRONIX MX83C305FC/MX83C306FC chipset. The chipset has an integrate 8K L1...