On 12/3/2014 9:17 AM, Kevin Crossett kcrossett@... [TekScopes] wrote:
Thanks to everyone who has emailed the list with suggestions for me to try
to cure my ailing scope. I have a copy of the service manual and have
taken
a look at the various schematics. To say I'm intimated is an
understatement. Just looking at the voltages coming out of this unit
scares
me. I am just starting out on this electronics hobby path, and spend my
time playing with low voltage DC circuits. To be honest, I'm not even sure
how to go about checking the voltage within the unit
This is a very easy thing to do:
With the cover off and the the scope upside down the voltage test points
are easy to fine and
plainly marked.
Even one of those ( free or $5 ) Harbor freight digital meters can show
you if you have a major
problem in the power supplies.
Have you done the beam finder and X/Y operation tests?
, and forget about
techniques to determine ripple on the supply. I have trouble really
understanding what is going on in a typical RC circuit, and that's just
running off a nine-volt battery. I'm afraid this one is over my head. It's
a shame as I really like the scope, and I'm finally in a position with my
family life that I can start fiddling with it. The scope had been in
storage for about a year as I focused on my family and work.
Again, thanks to everyone who gave some practical suggestions. I will file
them away. And if I can't find someone who has experience with these
scopes
and who can take a look at it, then, one day, when I feel more confident
playing with high-voltage equipment, I might drag it out and see about
repairing it.
OK, back to my lurking status.
Kevin
