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TSP #74 - Teardown, Repair and Experiments with the Fluke 43B Power Quality Analyzer

In this episode Shahriar investigates a Fluke 43B with a broken LCD screen. This unit suffers from the fairly common horizontal lines across the LCD unit. Furthermore, the unit also shows discoloration and other minor damage. Instead of trying to repair the LCD screen, it is fully disassembled and the internal construction is examined. A full teardown of the unit’s analog and digital circuitry is also shown. A replacement LCD screen is purchased from Scopemeter Repair website. The repaired unit is then used to examine the power quality of a florescent lamp. Power quality, displacement power quality, apparent and real power as well as distortion is examined. The Signal Path Blog http://www.TheSignalPath.com