HP HP-Bench-Briefs-1977-03-04 free download

File name HP-Bench-Briefs-1977-03-04.pdf

T-PACKAn3 F MARCH-APRIL 1977 E 1 USE N instrument Po uae s twdbits. * Ttw HP 50WA Signamre Analyzer is a But in the programmed digital world, ser- ian's tool for field troubleshootiryl vice sCtrema&s are devoid of waveform ocess0r-W intehrmts-down voltage and other service E for the not very comforting all bit strearm look pretty much alike 0rr an oscill . The pro\lrdem is com analysis. It has been learned that although with microprocessors, the microprocessor has simplified instru- controtlers. for a m ment design, it has complicated trouble- with them there is n without the use of specid extender nd. However, when association between particular sections example, if a k fumtion fails in an product, a service manual might n& r d circuits that m- checking the i t g& trbt that function. With microprocessors, on the other hand, key debouncing is cost actually fell and th stream is faulty the technician can trace it more likely a timeshared function, tying time amounted to appr baek through gates and memory elements up the whole processor for a brief the overall development until he isolates an element with correct moment. When it fails, any one of a large goal of wrviceabidity number-of IC's could be faulty. now has about 40 The signature analyzer is a troubleshoot- ing tool d