Date: Sat, 15 Sep 2001 02:51:12 +0000
From: "Matthew Hanson" <[EMAIL PROTECTED]>
Subject: Re: CT70 dead screen - attention Neil
Neil,
My brother's friend came over tonight with a multimeter, and that 2A fuse
tested fully open... no resistance at all. Looks like this may be the
culprit. I just hope this, relatively new, Radio Shack digital mulitimeter
didn�t feed anything back into the circuit and screw something else up.
It took a while to figure out how to set the meter ranges� and the first few
readings at some ranges LOOKED LIKE I was getting 10 ohms across the fuse
when I first put the probes on the fuse. I kind of expected to see some
kind of low circuit resistance. I think I remember your saying I should see
.2 ohms if the fuse was good. After screwing around with controls, I
figured how to set the ranges manually (there was an �auto� setting I was
getting odd results from) and set the range to its lowest setting. There I
got .9 ohm across the 5a fuse (the meter wouldn�t zero either� or I couldn�t
figure out how to do it)� and a fully open circuit across the 2a fuse in
question.
So I�m hoping my initial 10 ohm reading was due to the meter not being set
up right, and not because that�s what is actually was before the meter blew
out something else. Haven�t soldered a fuse wire yet or reassembled yet to
see if the system still works, but I thought it was dead anyway� so no big
deal.
The guy brought over a cylindrical 1 inch 2a glass fuse with the metal caps
thinking I might be able to heat the caps off and use the fuse wire inside.
Though he wasn�t sure if the wire would accept solder. Guess this kind of
wire should be available from electronics supply stores, right?
So are you in CA now? Read you saying you�re in forests somewhere. The
forests of the mountains out there are beautiful. I used to backpack in the
Sierra Nevadas a lot and loved it. One of my favorite ways to live!
Matt
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