Unfortunately the unit is not working and yes I tried the cold start (CTRL+PAUSE then Reset) without luck.
Thanks Mauro Sent from my iPad On 04/dic/2018, at 00:02, "John R. Hogerhuis" <jho...@pobox.com> wrote: > 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 >>> 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 >>>> >>>> >>>>
