So is it working now? Did you do a cold start? On Mon, Dec 3, 2018, 2:57 PM Mauro Pintus <mau...@tiscali.it wrote:
> Hi Mike, > I tried to replace the NiCd battery leaving the unit without battery > for few days and when I applied the new one I left it on charge without > turning on the unit for couple of days. > I think this should have cleared the garbage in the RAM :) > I also replaced most of the electrolitic capacitors and the voltage levels > are fine. > I managed to test also the LCD and it works correctly. > > Thank you > Mauro > > Sent from my iPad > > On 03/dic/2018, at 23:14, "Mike Stein" <mhs.st...@gmail.com> wrote: > > Might just need a short rest and a cold boot; turning off the memory > switch might well have scrambled the RAM contents. > > ----- Original Message ----- > *From:* Mauro Pintus <mau...@tiscali.it> > *To:* m...@bitchin100.com > *Sent:* Monday, December 03, 2018 5:00 PM > *Subject:* Re: [M100] Olivetti M-10's for a new home > > Hi Jan, > i actually don't know for sure which component is preventing it to > complete the boot. > It was warking fine while accidentally I flipped off the NiCd battery > switch. > Now if I turn it on nothing appear on the display, I can just regulate the > contrast... > I tried to blindly write a basic loop to make it beep but it doesn't work. > My hope was to have a working unit to use as a reference. > I discussed this repair couple of time here in the list and several people > provided so many useful informations. > Non i know better my M10 but I havent identifyed yet the culprit. > > Checking some signals with the oscilloscope it looks like it is looping > after a fix time without completing the boot. > > Francesco Messineo (another user of this list) wrote me in this days to > offer some help and he suspect I damaged the RAM. Thank you again > Francesco. > I bought a desoldering iron and I hope in the next few days I'll find the > time to try removing all RAM modules and fit one at a time in the first > socket (hoping one module is still alive). > > Before I'll do this I was wondering if someone have a custom ROM that will > test the RAM or other hardware peripherals providing some kind of feedback > on a GPIO or something like that. > > Mauro > > BTW Francesco has a Youtube channel related to retro computer that worth > mention: > > https://www.youtube.com/iz8dwf > > > > Sent from my iPad > > On 03/dic/2018, at 19:06, Jan Vanden Bossche <jan80...@yahoo.com> wrote: > > Mauro, > > What do you need to repair your M-10? > > Greetings from the TyRannoSaurus > Jan-80 > > > ------------------------------ > *From:* Mauro Pintus <mau...@tiscali.it> > *To:* m...@bitchin100.com > *Sent:* Saturday, 1 December 2018, 16:12 > *Subject:* Re: [M100] Olivetti M-10's for a new home > > Thank you Jeff, really appreciated. > Now I keep my finger crossed :) > > Have a nice day > > Mauro > > > > On Dec 1, 2018, at 3:59 PM, Jeffrey Birt wrote: > > Mauro, > > You have a need for them, so you should have them if the original person > does not speak up. Fixing your machine is a better use. I have no specific > need, just thought it would be neat to have a machine with AZERTY keyboard. > > Jeff_Birt > > *From:* M100 <m100-boun...@lists.bitchin100.com> *On Behalf Of *Mauro > Pintus > *Sent:* Saturday, December 1, 2018 7:50 AM > *To:* m...@bitchin100.com > *Subject:* Re: [M100] Olivetti M-10's for a new home > > I was soo exited I didn't see the other answer from Jeffrey, I'm sorry... > Hope we can find an agreement, I'm really interested but I don't want > bother anyone. > > Mauro > > > > On > > > > >
