Hello all!
I've got a 7000 Series Standardization Plug-In 067-0587-02 that is acting strange. Sometimes the Gain setting on the TEST switch will show a compressed set of lines instead of the correct 1 line per division and the Aux-In is distorting the waveform. I swapped the Aux-In first Hybrid IC U350 for one out of my 7904A and no change was observed. I removed and re-installed the 2nd Hybrid U390 and the waveform was better but still distorted. Due to the low use of the plug-in from the seller I purchased it from I suspect that the contacts in the HYPCON's and the TEST switch contacts may need cleaning. There is a cleaning procedure in the manual I can follow but I was wondering about the application of DeOxit Gold to the contacts?
Thanks in advance!
