14947Re: [midatlanticretro] RADIO SHACK TRS-80 MODEL 100 VINTAGE LAPTOP
- Oct 30, 2009Hi Joe:
Glad to hear you got the Model 100 working! That was certainly worth
the price. That seller was a little strange. I had contacted him
via email, but although he did respond by email, he never sent a phone
number. And he was in the next town. I could have been there in 10
But, I'm -very- glad that someone in MARCH was able to grab it. Yay!
73 de Ray
On Oct 30, 2009, at 1:42 PM, joprysko1 wrote:
> Apparently I was the one that the guy said he sold it to. I got it
> and it wouldn't power on. I have been going crazy trying to fix
> it. I replaced a couple of dried out caps, reading voltage levels
> all over the place trying to figure out what was holding it down.
> FINALLY! I talked to another one of the engineers at my work, and
> he told me to check these certain caps. I had already checked them
> previously and they included the couple of caps I had replaced. So
> I was taking voltage readings across one of the ones I replaced, and
> got my voltage. I tried to get a voltage reading across another
> one, that was in parallel with that cap and was getting nothing. So
> I asked a different engineer. He took a couple of readings with the
> meter, and said it's possible that one of the caps I replaced didn't
> have a good electrical connection. Then rather than replacing the
> cap, he suggested, just take a jumper from the + side of that cap to
> the other cap that should be in parallel, as there was an open
> between them. After I did that the machine powered up.
> So, now I have a working TRS-80 Model 100, with all kinds of
> accessories. The Acoustic Coupler, the nifty briefcase, etc.
> Now I can play with it.. or end up putting it in storage now that it
> is working.. LOL
> Joe O.
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