[time-nuts] Power up problem on Agilent E4420B

[Ziggy9]

Well, there’s a service guide linked from keysite.com:

http://literature.cdn.keysight.com/litweb/pdf/E4400-90335.pdf

Maybe that’s of some help.

Cheers!
Paul

> On Jan 24, 2021, at 4:37 PM, Magnus Danielson <magnus at rubidium.se> wrote:
> 
> Fellow time-nuts,
> 
> Sorry for the stupid question, but hopefully someone may put me on the
> lead to a solution. My Agilent E4420B fails to power up all of a sudden.
> It just fails to show anything on the screen and the only real shift is
> that the yellow standby led shifts to the green powered led. Beyond that
> it is completely frozen.
> 
> I just seem to have bad search foo, but maybe someone has a clue to get
> me in the right direction, for which I would be greatful.
> 
> So, is there useful service manual and hints for a potential way to
> resolve this?
> 
> Cheers,
> Magnus
> 
> 
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