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Radio Wrangler · 26th Mar 2016, 1:49 pm

Have you tried disconnecting the outputs to the rest of the sig gen? The first step is to be sure whether the sig gen is loading the PSU with something like a ceramic capacitor gone to short-circuit, or whether the PSU itself is the problem.

We have quite a few of these sig gens at work. There was a lot of them released by the government with ovened frequency standard, high power output (+23dBm) and fast pulse modulator options.

David

26th Mar 2016, 1:49 pm	#3
Radio Wrangler Moderator Join Date: Mar 2012 Location: Fife, Scotland, UK. Posts: 22,901	Re: Marconi 2024 SGen SMPS faulty Have you tried disconnecting the outputs to the rest of the sig gen? The first step is to be sure whether the sig gen is loading the PSU with something like a ceramic capacitor gone to short-circuit, or whether the PSU itself is the problem. We have quite a few of these sig gens at work. There was a lot of them released by the government with ovened frequency standard, high power output (+23dBm) and fast pulse modulator options. David __________________ Can't afford the volcanic island yet, but the plans for my monorail and the goons' uniforms are done