Re: [M100] New member - question on 'half' alive Model 100

>>Did you try the ctrl-break reset? >If so, I would first try to read the ROM externally to make sure it's not >corrupted, >then leave only 8K of known good RAM, and if IO/M is still stuck, >that means the >80C85 is faulty. Thanks Frank. I had tried removing the two option RAMs and had the same

Re: [M100] New user, AA battery leakage

There is at least a M100 and a T102 battery cover on thingiverse: https://www.thingiverse.com/thing:955567 https://www.thingiverse.com/thing:29533 And if you want a better quality print you can download the .stl file and upload it to Shapeways. Shapeways costs more, but they offer some higher

Re: [M100] SPAM-LOW: Re: New member - question on 'half' alive Model 100

Answered in line below, thanks for your replay. - Jeff Ju>>st a couple of quick things: 1. Have you tried a cold boot to clear out any bad data in the memory? Just tried, not change. 2. Is the LCD contrast adjustment working? Yes 3. If

Re: [M100] SPAM-LOW: Re: New member - question on 'half' alive Model 100

4. You could also check the Electrolytic Cap on the reset line it may of leaked too which could impact the reset timing. C90 is the only electrolytic that seems to be part of the reset circuitry. I have not changed it and it is of the same manufacture as the other ones that

Re: [M100] New user, AA battery leakage

That would be awesome. Thank you. I don't have a 3d printer. Simon On Sat, Apr 28, 2018, at 4:20 PM, Gregory McGill wrote: > I can print some and put them in my store at arcadeshopper.com > > as for the corrosion use vinegar to neutralize the acid and a strong > brush like a toothbrush to

Re: [M100] New user, AA battery leakage

Thanks very much for the info. Simon On Sat, Apr 28, 2018, at 12:05 PM, Kurt McCullum wrote: > the battery cover on the model 100 almost always breaks. There > was talk of 3D printing new ones but I don't know where that > project is at.> The NiCd should be replaced. You will need to take the

[M100] New member - question on 'half' alive Model 100

Hello, I got a Model 100 a while ago and just got it out to do some serious troubleshooting. After reading what I could find online I removed the NiCad battery (bad) and replaced C82, C85, C49-50-54-55 as they had all started to leak. The extent of the leakage was small and no visible damage

Re: [M100] New member - question on 'half' alive Model 100

On Sun, Apr 29, 2018 at 4:19 PM, Jeffrey Birt wrote: > Hello, > > > > I got a Model 100 a while ago and just got it out to do some serious > troubleshooting. After reading what I could find online I removed the NiCad > battery (bad) and replaced C82, C85, C49-50-54-55 as

Re: [M100] SPAM-LOW: Re: New member - question on 'half' alive Model 100

On Mon, 30 Apr 2018 09:05:18 +0930, Daryl Tester wrote: Oh, it's April 30th. I made myself sad. :-( A moment to reflect that Rick is still missed ... -- Regards, Daryl Tester Handcrafted Computers Pty. Ltd.

Re: [M100] REX

I have now managed to install EagleCAD 6.6 and load the original Rex.brd in that, then re-save, to make an EagleCAD 6.x xml format .brd file, which is then able to be imported into KiCAD 4.0.7 pcbnew, then saved again finally as a KiCAD 4.0.7 .kicad_pcb file. I then edited the edge cut lines to

Re: [M100] New member - question on 'half' alive Model 100

Hi Welcome to the Model T world. Just a couple of quick things: 1. Have you tried a cold boot to clear out any bad data in the memory? 2. Is the LCD contrast adjustment working? 3. If the LCD is going dark it usually means the processor has reset it, if it did not there would be garbage