- Stops mid bios startup - 3 Updates
- 315M Laser fringe issues, help needed... - 1 Update
| vjp2.at@at.BioStrategist.dot.dot.com: May 25 08:23PM In <g1PyG.274260$Ff6.64756@fx40.iad> by ABLE1 <somewhere@nowhere.net> on Mon, 25 May 2020 08:40:40 we perused: *+-Could have been the EARTHQUAKE that started it all!! :-) I needed the laugh as painful as it is Most of my computer failures (modems, monitors) linked to storms. But my first DOS machine had a problem like this in its fifth year (1990) Back then folks answered the phone and the mfr (Ampro in California) told me it was the AD converter. But I couldn't find a place to sell me one. So I wrote to the mfr(TDK) and asked for an "engineering sample". FREE. Even funnier because I cudda walked to the AD converter mfr in two hours. - = - Vasos Panagiotopoulos, Columbia'81+, Reagan, Mozart, Pindus blog: panix.com/~vjp2/ruminatn.htm - = - web: panix.com/~vjp2/vasos.htm facebook.com/vasjpan2 - linkedin.com/in/vasjpan02 - biostrategist.com ---{Nothing herein constitutes advice. Everything fully disclaimed.}--- |
| Bob F <bobnospam@gmail.com>: May 25 10:43PM -0700 > blog: panix.com/~vjp2/ruminatn.htm - = - web: panix.com/~vjp2/vasos.htm > facebook.com/vasjpan2 - linkedin.com/in/vasjpan02 - biostrategist.com > ---{Nothing herein constitutes advice. Everything fully disclaimed.}--- I had one act up during boot. I discovered that if I changed the memory configuration, by adding, removing,or moving a RAM, then it would boot (to BIOS?). Someone suggested that forced the BIOS to re-generate some configuration data. |
| vjp2.at@at.BioStrategist.dot.dot.com: May 26 09:19AM Wow! FOund it. Works! I remembered that it complained that I could use a faster USB port. Wierd. DIdn't touch it. Then I remembered I couldn't see my external USB hard drive. It was dangling between furniture. USB connection imperfect. Put it back. Computer booted. Turned out I managed to do same to my modem. (I hate WinModem. Won't work in Unix.) But dang. Now I can breathe again. - = - Vasos Panagiotopoulos, Columbia'81+, Reagan, Mozart, Pindus blog: panix.com/~vjp2/ruminatn.htm - = - web: panix.com/~vjp2/vasos.htm facebook.com/vasjpan2 - linkedin.com/in/vasjpan02 - biostrategist.com ---{Nothing herein constitutes advice. Everything fully disclaimed.}--- |
| ggherold@gmail.com: May 25 07:42PM -0700 On Tuesday, May 19, 2020 at 2:36:20 PM UTC-4, Andrew Way wrote: > I have tried the recommendations in the laser faq for this model, DC voltage is good/stable, checked all ribbon cable conn's (visually, as i'd hate to brick it by poking around with a multimeter). I have also tried adjusting the pot down for a lower current/power setting to no avail- it resets and takes its 6mins to find a new stable setting, but the fringes never settle. > I do not have a oscilloscope or power meter handy as of yet, but it seems to be stuck in a loop. Any suggestions would be appreciated! > -Roo hmm, no 'scope. I don't know these lasers, but is there both a current control loop and thermal control? Can you look at those signals? A few minutes sound like it might be the temperature. George h. |
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