Aeroflex 3500A maintenance manual looking or who can provide CAL PASSWORD

[BH3TXW]

Dears,

I am looking for the Aeroflex/IFR 3500A Service manual or maintenance manual. The original P/N for it is 6108(1002-6201-4C0).



Or any friend could provide the calibration password:


However so far I wasn't able to find it...

Any help is appreciated!

Kind regards

[M0HZH]

Cal password for the COM-120 series is FMYSVCD, I imagine it's not the same but worth a try.

If you won't get an answer here, it's worth joining these discussion groups as surely they will have people able to help:

https://groups.io/g/IFR-Monitors
https://groups.io/g/Marconi-Test-Instruments

Also the Batlabs forums had an active Aeroflex engineer onboard so there's a wealth of useful information there as well.

[BH3TXW]

Thank you so much！
This problem has been haunting me for half of year.
My 3500A works perfect EXCEPT carrier freq error, so the TCXO needs to be recalibrated,however, calibration is password protected. It was really A pain in eye.
One thing for sure is that I tried every possible method that only number combination is accessible on this instrument. So the password should be number based.

Thank you again for your advice.

[BH3TXW]

Thank you for anyone could help.
Here's my email:
chinesejames1990@aliyun.com

[knapik]

Its 30203

[BH3TXW]

Thank you!
Sorry I didn't notice your reply that time.
But, again, thanks!

Regards

James