Post to a different newsgroup, one that deals in electronics.
Because "take it to the repair shop" is the obvious answer. "For
no reason" indicates one of the components inside has failed due
to age, voltage spike, etc. Not sure how up you might be on
troubleshooting electronics to the component level.
David A. Smith
What kind of signal are you looking at? It could be a lot of things. You
can't just connect most oscilloscopes to a source and expect them to
automatically give you a perfect signal without any adjustment.
It may not be blurry; it might just be out of range or not triggering
properly. Your signal may be too high a frequency. If you try to scrunch
30,000 waves onto the little screen, they will appear as a blur. There is
usually a frequency range knob of some sort (one of the major knobs). Try
switching this knob (probably higher) and see if anything improves. If you
can get it to a point where you see the waves, but they are racing by too
fast to see, then that is your trigger. There's probably a "trigger" or
"sync." control that will freeze the wave. If you are using an old scope,
there may also be a knob within the center of the frequency range knob that
can fine tune the sweep and slow the wave down. Also, take a look at the
other major knob, amplitude range, and make sure that your signal is not
simply too large and going vertically off the screen.
Hope this helps.
Helo, thanks for your help. Im sure the blur is not due to a signal being of
a high requency, or anything along those lines because it is not just the
signal lines that are like it, the scope also displays other data such as
the time division, and these are also out of focus. It was working perfectly
before it suddenly died, and it was doing nothing at the time
... contact phone numbers and email addresses. They might know
who does service.
I assume the cable set(s) are in good shape? And you have run
this on different power circuits (just in case you've got line
noise mucking with things)?
David A. Smith
Yeah. Same thing happened to me once. Then it happened to my
computer screen, and my calculator, and even my newspapers. I got my
first pair of eyeglasses for my 43rd birthday, and the scope's been just
fine ever since.
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