Fixing a faulty tachometer
Added 2023-01-26 02:36:41 +0000 UTCVeterans of electronic repair will be very familiar with this fault.
Clue - The unit was pretty much short circuiting the battery.
First real-world use of my new Infiray P2 pro thermal camera, and it found the fault instantly. Louis Rossmann sometimes uses a squirt of isopropyl alcohol to do the same job. It evaporates quickly from the hot component.
Alternatively you can just probe the components on the PCB with a thermocouple while running it on a current limited supply, until you find the hot one.
https://www.youtube.com/watch?v=fcdBjBltn9I
Comments
Another quality Big Clive tear down & fix. Good stuff! It's this sort of video that really helps the repair cafe/restart party folk to save faulty electronics from landfill.
Jon Knight
2023-01-31 16:24:08 +0000 UTCI saw Mike's tear-down of that thermal imaging camera (I'm a patron of his channel too), looks lovely, but I already have too many thermal imaging cameras.. I like the close-up lens, but as Mike suggested, you can use an old ZnSe CO2 laser cutter focussing lens as a macro lens for any thermal imaging camera.. An even cheaper approach to locating overheating components - a spray-bottle filled with IPA - what could possibly go wrong..
Gordo
2023-01-29 15:19:22 +0000 UTC
