Hi everyone,
I have a Fluke 8600A and the display flashes random values and then flashes to the overload display "1.8888" When I select the different ranges the appropriate LED lights in the proper decimal place, and the LED indicating DC, or AC, or OHMs lights up when the different mode buttons are pressed. Due to the way it displays the measured A/D converted DC voltage vs time slope I think it might be problems with the timing in the U4 or U5 and U6 A/D converter circuit. If anyone has any experience with this problem I would very much appreciate your input. Any ideas will be appreciated. I have done a thorough cleaning of all buttons and switches and recapped the old electrolytics in the P/S. All voltages check nominal at all test points. I am now plowing thru the manual to familiarize myself with the operational theory and the block/schematic diagrams.
Thanks for any help
Gary