Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uwm.edu!ogicse!unicorn!n8941063
From: n8941063@unicorn.wwu.edu (stevens charles a)
Newsgroups: comp.sys.cbm
Subject: Re: low power problem on my 1541
Message-ID: <1990Oct4.225655.6595@unicorn.wwu.edu>
Date: 4 Oct 90 22:56:55 GMT
References: <14399.270a3f15@max.u.washington.edu>
Reply-To: n8941063@unicorn.WWU.EDU (stevens charles a)
Organization: Western Washington Univ, Bellingham, WA
Lines: 16


    Now, I am not a computer technician, but I do know some electronics.

    CR3, if that designation is correct, is a diode.  If you truly suspect that
this is the problem, it is an easy thing to test.  You will need a soldering
iron and an ohm meter (or doide/continuity tester).  Simply desolder one side
of the diode, to remove it from the circuit. (it is not necessary to completely
remove the diode to isolate it, but you might want to if it is hard to get to.)
With the meter, check the continuity/resistance of the diode.  It should
conduct with a very low resistance in one direction, and not conduct at all
(very high resistance) the other direction.  (To change direction, just reverse
the meter leads.)  If the diode conducts both ways, or doesn't conduct at all,
then the sucker's bad.  It sounds as if it is open, from your description.
   I hope this helps.

                   ...Chaz...