Author Topic: Thermal camera suggestions - detecing and repairing a short circuit  (Read 1056 times)

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Offline james_s

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Re: Thermal camera suggestions - detecing and repairing a short circuit
« Reply #25 on: June 23, 2020, 04:53:57 am »
Take a brush, and with it flood the board with IPA (alcohol).  When powered up, the short circuited component will heat first, thus evaporating the alcohol in the area where the shorted component is.

That's what I was going to suggest as well. I saw Louis Rossman demonstrate it a while back, he claims it works better than a thermal camera. I did use it successfully once to locate a short.

I doubt the short is internal to the PCB, it's going to either be a shorted semiconductor or a power supply bypass capacitor most likely.
 

Offline pickle9000

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Re: Thermal camera suggestions - detecing and repairing a short circuit
« Reply #26 on: June 23, 2020, 06:05:44 am »
An old practice was a can of freeze spray. The bit of frost that disappears quickly is the source.

An inverted can of canned computer duster will also work.
 


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