So, just wanted to follow up on this and it's a happy story as my model 100 is working flawlessly now.
After Jeff responded I viewed all his great Youtube videos about TRS-80 model 100's. I was left with two interesting things. If the machine behaves strangely it might be because: 1) left over flux that has become slightly conductive 2) or missing battery So I addressed both of these. There was a lot of left over flux in certain areas of the mother board that needed to be cleaned of and I replaced the battery. And behold: The machine now works perfectly :). Thanks for all the great videos Jeff, and happy holidays to you all :) Now, I will go and write some TEXT files on my Norwegian Model 100!. On Mon, May 12, 2025 at 7:14 PM <[email protected]> wrote: > Have you measured the power supply rails to see if you are losing one? > > > > Jeff Birt > > > > *From:* M100 <[email protected]> *On Behalf Of *Rune Devik > *Sent:* Sunday, May 11, 2025 12:48 AM > *To:* [email protected] > *Subject:* SPAM-LOW: Re: [M100] My Model 100 works, then dies > > > > Happens with both. First time using the adapter and after that I changed > to batteries. Same behaviour. > > > > > > On Sun, May 11, 2025, 01:30 Tom Cronin <[email protected]> wrote: > > Is this using the power adapter or using AA batteries? > > > > On Sat, May 10, 2025 at 8:58 AM Rune Devik <[email protected]> wrote: > > Hi > > > > I have a Model 100 that works perfectly for 2 - 5 minutes then makes a > small crackling sound (speaker) then seems to just power off. When I try to > restart it (power on/off switch) it does not work. When I try it the next > day it works again for some time before it powers off. > > > > I have removed the internal battery and changed all caps on the right hand > side of the motherboard (as I believe I read somewhere that these where the > power side of things). But the behavior is exactly the same. Still have a > few caps on the left hand side that I haven't changed but I'm starting to > loose faith in my capacitor theory. > > > > Any ideas would be appreciated. If anyone has experienced the same and > know the fix that would be even better :) > > > > /Warshi > > -- mvh, Rune Devik
