Jack, thanks for the tip..but I had already tried reversing the keypad/base and
DEC/base cables - I forgot to mention that : (

I'd like to ask why your first suggestion is a runaway DEC drive? I have scanned
many of the MAPUG Archive articles as well as those on other web sites, and thus
far have found no mention of the keypad noise associated with a runaway DEC.
Lots of discussion of weird noises and behavior in the drive, but not the
keypad. I put the keypad in a foam lined box to quiet it down, and do not hear
or see any activity in the DEC drive, only the RA. Have I missed a clue
somewhere?

Thanks again,

Chuck

Jack Estes wrote:

> You wrote:
> Immediately a high-pitched electronic tone comes from the keypad! I can hear
> and see the RA motor going through its initialization, but cannot detect any
> activity from the DEC drive - perhaps I can't hear it due to the LOUD scream
> of the keypad. The display on the keypad shows all squares on the top line
> and never anything else.
>
> My reply:
> It may be something as simple as a faulty coiled cable from the keypad to
> the computer base. Try turning it around, the plugs are interchangable. If
> you have read the MAPUG archives, that often solves a runaway DEC motor
> problem.
>
> (http://www.precision-camera.com)
> Wireless phone 512-657-9062
> Austin,TX Astronomical Society, Treasurer
>
> "Smart is when you believe only half of what you hear.
> Brilliant is when you know which half to believe."
>
> ______________________________________________________
> Get Your Private, Free Email at http://www.hotmail.com

View index by [date] [author] [subject]
Previous message: [M]: Re: ETX 90 EC, Jack Estes
Next message: Re: [M]: Re: ETX 90 EC, Email address hidden
Next message in thread: Re: [M]: Screaming Keypad!, Ric L Ecker
Previous message in thread: [M]: Re: Screaming Keypad!, Jack Estes