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can any one tell me what the hall sensor should measure on the rotar of a lg wm14225fd. the drum has erratic movement some times wont turn. have measuerd coil all ok. have measured loom from p.c.b to rotor all ok. hall sensor measures 34meg on left side and about 16 k on right side is this right?????
Re: lg hall sensor
i had one of these hall effect sensors on a ice machine i was reparing i found the magnet had broken away so it wouldent function correctly. if you find the sensor number then google it for a pinout diagram you will see a ground a voltage connection and a signal output if you can connect up your multi meter to ground and signal output you can monitor the machine during a basic wash to see if you have correct pulsed voltage output
( + voltage out should be same as + in )
here is a test
A circuit for testing the DN6848 is shown above. The output swings from +5 to ground. It will detect the presence of a south pole near to its front without physical contact, which is its great advantage. Using it as a tachometer would be a good test, but the mechanical arrangements would take some care and effort. Static switching would be easier to arrange, as detecting the opening and closing of a door or drawer.
Re: lg hall sensor
This device is actually an integrated circuit comprising the hall sensor, ampifier, power supply/temperature compensator and schmitt trigger.
The schmitt trigger causes the amplifed hall signal to swing between the voltage rail limits in effect giving a digital output. As drinkywinky writes the best way to test it is to measure its output in situ.
Andy 😀
Lucky Goldstar
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