Question about AudioSource AMP100 2-Channel Bridgeable Stereo Power Amplifier - 2
I need a repair service manual for a amp 100 amplifier. Something started smoking and fried in mine, so I need to know what goes in that place, is it a jumper or something else?
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Posted on Jan 02, 2017
When the fuse keeps blowing you have an overload. The cause of which is either in the power supply or the main amp. It will almost for certain be a semi-conductor of some type acting like a piece of wire. A multi meter will show up a most faulty parts with this condition. On the Ohm setting applying the test probes to transistor terminals (E,C,B) you will get a responce like you had touch the probes together! The power transistors or whatever is on the heatsink are good at going short circuit, as people often short the speaker wires together.
Don't forget to check for burnt or damaged parts too.
As a rule of thumb with transistors when testing on a meter (1K setting) (best with moving coil scale meter than a digital) apply to base (B) and then to C & E you should get an ohms reading. If you don't get any reading (both ways) it's dead (open) and if the meter goes full scale - it's shorted.
Posted on Aug 01, 2010
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