Quote:
Originally Posted by hammom02
I'm very wary of testing anything with the power on though as I'm not sure what I'm doing in this area.
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The safest way is to attach the meter to the relevant points in the circuit with crocodile clip leads while the device is turned off. Set the meter to the relevant setting and turn on the unit. Note the reading and switch the unit off before moving the leads to the next test point. From the rest of this thread it looks as though you've got a few people who can tell you exactly where to test.
Where high voltage is involved, or I'm particularly wary of a piece of equipment, I have been known to perform the switch on with a broom handle while wearing goggles. I've been close to an exploding capacitor before and it was not pleasant.
There really is no substitute for DC voltage readings at known points. The service manuals usually help you by showing what these readings should be, allowing for speedy diagnosis.