No Sound Output On My Amplifier, What Maybe The Problem?


2 Answers

Rajat Khosla Profile
Rajat Khosla answered
It could be a blown fuse. Some home audio gears sometimes have fuses inside, if you don't see a fuse holder on the back panel. Remember to unplug the amp from your wall socket and wait a few minutes before tinkering with anything!

Tom McNamee Profile
Tom McNamee answered
Amplifiers are among the most common and easiest to understand electronic devices. At their heart, they consist of an element, usually a transistor or (much older) a tube, that uses a small current or voltage to control a much larger one. The output is proportional to the input, usually by a value > 1.0.
You can troubleshoot your amplifier by going through its various stages:
Power: Is it powered up? Are the components warm? Can you hear a hum?
Input: Are you applying a signal? Assuming an audio amp, check the input jack wires. Prove to yourself that the mike or guitar you are using as an input actually works.
Output: Is the amp really connected to an output device? Prove to yourself the speaker really works.
Amplifier circuitry: If it is none of the above, it is usually the output stage transistors or tubes that are at fault. A qualified repair shop can confirm and replace.

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