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Thank you SunnySkyguy and E-design !! I work on ham radio repairs... it would be so much easier if I had a schematic or even a block diagram with some idea of where to find some of the components. I guess I have to start at the output and work my way backwards. I'm not sure what...
I acquired an R&S SM300 signal generator has some output issue only between certain level ranges independent of selected frequency. The self-test program passes all internal testing. The following is a description of the symptoms and perhaps someone can advise if I should be focusing on the...
Hi Eric,
Yes the red, blue sand green wiring you show is correct wiring. However the "read" voltage going to the microcontroller board comes from FIL_SENSE_GND (note on schematic shown going to connector labeled J6-5) and FIL_MON (labeled J6-7). J6-5 and J6-7 go to the microcontroller ports...
I have a ham radio RF amp (no longer supported by manufacturer who has changed hands many times in past 10 years) running two 3CX800A7 ceramic triodes (all else solid state) with a lot of protective circuitry. I have been getting intermittent faults on the filament monitor for the 3CX800A7’s...
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