Glad to hear you got it sorted.
Jeff From: M100 <[email protected]> On Behalf Of Rune Devik Sent: Tuesday, December 16, 2025 3:46 AM To: [email protected] Subject: Re: [M100] SPAM-LOW: Re: My Model 100 works, then dies 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] <mailto:[email protected]> > wrote: Have you measured the power supply rails to see if you are losing one? Jeff Birt From: M100 <[email protected] <mailto:[email protected]> > On Behalf Of Rune Devik Sent: Sunday, May 11, 2025 12:48 AM To: [email protected] <mailto:[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] <mailto:[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] <mailto:[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
