I'm trying to repair a Fluke T5-1000 current clamp meter.
There appears to be remnants of leaked batteries on some components.
When I temporarily attached the back cover back on to test the meter after cleaning, I noticed a burning smell when the probes were connected to mains (230V AC).
The burning seems to have come from a short across the PCB from the battery negative contact to one of the thermistor contacts. What is the purpose of the thermistor and could a loose battery connection have caused the burnt short?
There appears to be remnants of leaked batteries on some components.
When I temporarily attached the back cover back on to test the meter after cleaning, I noticed a burning smell when the probes were connected to mains (230V AC).
The burning seems to have come from a short across the PCB from the battery negative contact to one of the thermistor contacts. What is the purpose of the thermistor and could a loose battery connection have caused the burnt short?
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