Anritsu MS560j schematics?

[Danijel_1993]

Hello. I have old Anritsu MS560j Network/Spectrum analyzer, that is working, but have some issues. Does anyone have user/service manual? Since my online search gave no resaults.  I could troubleshoot it without, but it would be nice to have one. 
Thanks in advance.

[Stray Electron]

   I have a coupe of Anritsu SAs and some other TE but I've never found schematics for any of it.  I think I found a block diagram for one SA but that's it.  The Anritsu stuff is nice and works great but I generally avoid it due to the lack of any service related documentation. 

  Have you checked BAMA?  IF anyone has documentation for any electronics they probably have a copy.  <https://bama.edebris.com/>

[Danijel_1993]

I checked Bama, but no luck. I was able to find for MS420, which is identical to MS560, just different frequency span. Even in that manual, there are no schematics, just block diagrams. Still no luck.

[coromonadalix]

have you asked Anritsu  under an NDA ... non disclosure agreement ...

[metrologist]

I believe that equipment was designed and manufactured by Japan HQ, some 40 years ago. HQ has always been reluctant to release technical product info and they likely do not even have easy access to it now.

[Danijel_1993]

I will have to ask Anritsu directly, maybe i have luck and they have .pdf of manual. Thank you all for response!