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i guess its a short, changed the supply, (this one has no led, but the board became hot rather quickly near the .) any way to fix it?
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If you have the schematics, and an ohm-meter, then you can take a shot at fixing it - its not like you can make it worse right?
Your input regulator might be the dead component. You could measure the impedance at the input and see if there is a short, and then again at the output and hopefully there is no short. Then you just need to figure out how to replace the linear regulator.
If its not the regulator, then you need to determine where the short is. If the board is well designed, then there should be ferrite beads in series with power rails. You can start removing those beads until the short clears. That'll tell you where the short is.
Cheers,
Dave
Honored Contributor
