Help with repair on Rhode & Schwarz SMG w/ options B1 & B2

[wattw]

I have new-found respect for the complexity of high performance signal generators! I am working my way through the error codes on a disappointing  eBay purchase and I think that I am down to the last issue which is a dead 50 Mhz osc. on the A2 FRN Loop module.

As these modules are highly shielded, and I lack the service extension cards/cables to hot-test the module outside the "frame" - does anybody have any experience that may short-cut the "blind testing of cold components? Thanks, Bill

[tautech]

You may have to make your own extension cable.
I have had to on occasion, one such: an old PC IDE drive ribbon cable, a custom made PCB edge to slide in to the socket and a modified PCB card socket from the junk pile.
Rough, but got the module powered up and the fix done. 

[nctnico]

In these cases I solder wires to the boards (long enough to stick outside the shielded case) and probe from there.