hi,
I have an Aeroflex IFR 3416 6 GHz Signal Generator that appears to have the same problem as CJay's 3413.
I have No RF output, an ERROR # 522 (Power supply problem on the RF board) and high heating.
I have just started to try to understand the issues this week, but am quite lost without schematics.
The manufacture will Not supply the Service manual nor schematics.
My unit does appear to come with the options 003, 005, 006, & 021 (electronic attenuator, dual Ch. ARB source, fast puts mod & CDMA waveforms).
I have been trying to follow CJay's & others postings, but, (please forgive my humorous plight) rather like Tolkien's Elven folk, the posts keep popping up with a different thread heading (was difficult to find if not Aeroflex 3413 )!
Can someone please supply a rough sketch of the Aeroflex 3413 output stage so that I can attempt to follow it ?
I am going to try to find some H1681's to repair my unit, but am wondering it if is now also the bias supply (OpAmps ?) to the O/P RF finals ?
Somewhat confused, clarification via a schematic would help.
Can CJay & others please keep me posted as to repairs & parts suppliers ?
Is there anyplace one can find the H1681 or HexWave 1681RA ?
Hoping to repair my Aeroflex IFR 3416 for my ham amateur radio EME project.
thank you !