Fwd: OT: Waveform monitors

[Ted Langdell]

Posted on behalf of Don Norwood. 

Feel free to reply on-list w/cc to Don. 

Cheers fro PHX Gate A1 bound for ATL.  

Ted

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Begin forwarded message:

> From: "Don Norwood" <quadlist at digitrakcom.com>
> Date: October 3, 2014, 12:01:09 PM MST
> To: "Ted Langdell" <ted at quadvideotapegroup.com>
> Cc: "Ted Langdell" <tedlangdell at sbcglobal.net>
> Subject: Fw: OT: Waveform monitors
> 
> From: Don Norwood
> Sent: Thursday, October 02, 2014 9:21 PM
> To: Quad List
> Subject: OT: Waveform monitors
> 
> This is off-topic, but I know the brain trust here may have an answer, so
> please reply off-list so we don't clutter the archives!
> 
> My question concerns the newer TEK 1700 series of scopes, specifically the
> 1760 although it applies to all of the models that use the computer
> calibration system (1740A, 1750A, 1760).
> 
> The scope arrived here out of calibration, and so I proceeded to go thru the
> process using a PC as directed in the manual and following the on-screen
> instructions.  Everything seemed to work properly, and the calibrations
> appeared to be correct.  However, after turning the unit off and back on, it
> reverted to its non-calibrated state.  So I did it again, and this time, I
> saved all of the settings using the NVSAVE function.  Powering off and on
> had the same result with the cal being lost, but running the NVRESTORE
> program correctly re-establishes the cal settings, so I'm not wasting a
> couple of hours to do another cal, but it still will not retain the settings
> without power.
> 
> Normally, I would think that the NVRAM was bad.  However, while it loses the
> cal settings, all of the other settings (user presets, front panel recall,
> etc) which are stored there are OK and aren't lost with power off.  So, is
> there a step or something that I'm missing?  I've not encountered this
> before, so I'm hoping that someone has the answer!
> 
> Thanks.
> 
> Don


Ted

Ted Langdell
Secretary
Quad Videotape Group
e-mail:	ted at quadvideotapegroup.com

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