Just wanted to add - I had my 100 sitting on the corner of my desk here yesterday after I put the fresh batteries in it, and a coworker walked by and said "Wow, what is that? Is that NEW?" :-D He was extremely impressed by the full-sized 'real' keyboard on an otherwise portable unit.
On Tue, Jul 18, 2017 at 9:50 AM, Roger Mullins <km4...@gmail.com> wrote: > In honor of the late great George Romero, I'm now going to re-animate this > thread from three months ago. :-) > > I finally got around to ordering a new backup battery, which I installed > last night. First of all, it had very clearly been replaced before (I'm > the second owner of my 100; got it quite a ways back from a professor who > was cleaning out his office) and whoever did it had extremely questionable > soldering skills. Matter of fact it almost looked like they used a butane > torch or something from the scorch marks on the board. One of the pads was > missing as well; I had to build it back up with solder before I could get > started. But anyways, got the old battery out and the new one in and > everything reassembled. I put the batteries back in and left it off > overnight (with the memory switch on). > > I tried it this morning and I'm exactly where I was before. The LED > blinks when I switch it on, and I can use the contrast knob to make the > screen all light or all dark. But there's nothing on it. The 'beep test' > of hitting enter, 'beep', enter doesn't do anything either. > > Any ideas as to next steps? I brought it with me to the office this > morning and figured I'd put four new batteries in. I ordered a wall > charger which I'm expecting Friday; I don't know if letting it charge via > that would make any difference or not. I did a quick visual inspection of > the board while I had it apart last night and everything seems to be seated > OK. The LCD is relatively new; I bought it from Rick not too long before > he passed away. And you can see that all the pixels are good when you turn > the contrast up. Plus the fact that it doesn't beep when you blindly drop > it in to BASIC... it's as though there's just nothing going on behind the > scenes. > > > > On Mon, May 1, 2017 at 9:28 AM, Roger Mullins <km4...@gmail.com> wrote: > >> Thanks, Ken! My bad, I should have mentioned I did that too. No beep. >> So I guess I'm in battery replacement territory for my next step. Oh >> well... the original one had a good 34-ish year run. >> >> > >> >> Roger, >> >> Try: >> >> - Power on >> - Enter (goes into BASIC) >> - Type: BEEP >> - Hit Enter >> - Listen if you hear a beep >> >> This will tell you if the processor is running or if it is just an LCD >> issue. If no beep heard, maybe needs a new NiCD battery or a good >> overnight charge. Otherwise might be an LCD issue. >> >> Ken >> >> >
