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Re: Tek 7854 intermittent issues


 

Alright I've checked all the power supply test points I knew the location of (A12,A22,A17) Except I didn't get that digital supply David mentioned, which I'm not sure where the test points are, how to reach them, or what the specs are for that.

Of the stuff I checked though everything came out relatively normal from what I could measure with my less than great instruments, well all but one thing, TP126 for the +108 volts that read 108.5 volts which is barely in spec but had some funky ripple pictured here on my auxiliary scope: /g/TekScopes/photo/252782/0?p=Created,,,20,2,0,0 . That was the only thing I saw that was out of the ordinary so far.

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