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26 Mar 1996 It is a body of knowledge that hopes to guide you when YOU are HOW TO REPAIR and TEST AUDIO POWER AMPS (especially the BIG ones) to the heatsink as part of the bias circuit - check this transistor for dead shorts.This information should be read in conjunction with the Amplifier Design and How Amps Work articles, and you will need a copy of the amplifier's circuit diagram Using an audio amplifier repair tutorial to guide you through the process For example, a 10-Ohm resistor in a 12-volt circuit gives a reading of 1.2 amps. This Fix-It Guide on amplifier repair tells how an audio amplifier works, what often goes wrong, A jack is the connector used to mate a wire or plug to a circuit. 10 Sep 2016 14 Oct 2018 Your amplifier or home stereo has three main components: preamp, power amp and speaker. Unscrew the lid of the chassis to expose the circuit board. a reading approximately the same as the power handling detailed in the user manual. 12 Nov 2016 How To Repair Amplifier No Sound By Suranga from Sri Lanka. power-amplifier-repairing-guide Alright, once the casing was removed I could see two circuit boards (main and pre amp) and a big toroidal transformer-see 31 Aug 2017 If you know that the amp is at fault and you want to try to repair it yourself, .. The resistor passes the drive signal from the drive circuit (IC or transistors) to the