¿ªÔÆÌåÓý

  1. HP-Agilent-Keysight-Equipment
  2. Messages
Single Messages Topics Expanded

Re: HP 8665A signal generator- memory contents lost

 

On Tue, Dec 4, 2018 at 5:16 PM Noel VK3NH <noelmh@...> wrote:

My questions are:-

?

1/ Is there a backup battery that I need to replace so that calibration information is retained and it does not have to keep doing a recalibration at power up?


There is a 3-cell NiCad battery soldered in to the CPU board, see e.g. </g/HP-Agilent-Keysight-equipment/message/92869>, where I found someone had soldered in a primary Lithium cell for the NiCad.?
?

2/ Is there a way to restore the memory information?


I don't think that should be necessary. This NiCad battery is only supposed to retain the memory contents for 2 weeks or so if the generator is not plugged in.?I believe it therefore only stores calibration information that can be restored with a self-cal.
?

3/ How do I correct or reset the 10MHz reference to where it should be?


This I don't know, but I think it'll be unrelated to the battery issue.?
Join [email protected] to automatically receive all group messages.