[Test-Equipment] 2710 manuals and repair

[TK5EP (Patrick Egloff)]

Hi All,

Thanks for the different answers i got !

On the http://www.tek.com i couldn't find any 2710 relative infos. The closest is for the 2711/2712, which seems to be quite different.
So, any help is still welcome.

Concerning my problem :

First, it was not working when i bought it. I had to replace the 100 MHz Xtal in the reference oscillator.

But, sometimes when i switch the S.A on, i have plenty of "spikes" on the screen. They are unstable in frequency but equaly spaced.
The level does not change when i modifiy the REF LEVEL, nor does the spacing change when i change the FREQ SPAN or BW.

The only action that changes something is the spacing when i change the SWEEP speed.

When i disconnect the output from the REF board, the "spikes" disappear.

This problem does happen sometimes and does not disappear when i switch it ON/OFF. One hour later, it can work normaly. When it works, it's for all time the S.A is on. (don't say me to leave it ON !  :-)) )

Even with the problem,  i can use the S.A. But frequency seems to be a bit unstable.

I suspect something in the PLL loop, if there is any... ?

Any help, advices ??

Greetings from Corsica, Patrick

http://tk5ep.free.fr