Is it an actual 2465, or the A or B model?
I ask because the actual 2465 uses a very funny
pot for the Delta controls. It has no stop, a
conventional resistor wafer, but two separate
wipers that ride on the resistor wafer with an offset.
The program watches the voltages out of the two wipers
change as you rotate the control, and calculates the
position of the cursors... which takes a little time.
Anyway, pots get dirty, and need a little lube from
time to time.... Especially pots that get cranked on
as much as the cursor pots do. There really is nothing
much else it could be... especially if other pots are
not affected.
If you have the A or B model scope, the CPU is over
taxed by all the stuff that has to be cyclically checked
and dealt with, and that causes a delay between when
you turn a knob and when it makes the function happen.
And, all three scopes will get a little put out when you
turn a knob more quickly than the CPU can process the
info and make its response.
-Chuck Harris
dcane4@... wrote:
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The Delta Ref and Delta pots on my 2465 are very erratic (both cursors jump around when the pots are turned whether in independent or tracking mode), but all of the other pots on the front panel seem to work fine. Any troubleshooting suggestions would be appreciated. Thanks. Dave
