ANSWERS: 1
  • If your not familiar with the danger [electrocution] of being in a hot appliance, don't mess with it. However, a power supply is a power supply is a power supply. Using appropriate safe troubleshooting procedure, armed with a volt meter, monitor the input/output voltages. If the regulator has a JEDEC number, go to the web and get a spec. sheet on the IC. If IC number is generic, lots of luck. Heat is a trouble maker for all electronics. If possible, rig a heat sink on the IC. IC spec. sheet will give you the operating paramaters for the device. Don't short the device pins. If regulator is not an IC but a 3 legged device [transistor like], rigging a heat sink is much easier. Monitoring current drain will help as well. But you will need a good ammeter appropriately scaled and able to handle any load imposed from your set. You will have to interupt the circuit to place the ammeter in series with the regulator and downstream load. Unless you have a clamp-on ammeter.

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