Question about Amplifiers & Preamps
If you understand electronics then work backwards from the speaker outputs to the imputs. You need to make the channel buzz by touching the circuit, you can use a small screwdriver. Best of all is a signal injector, you can buy one at a electrical service shop (Maplin UK) they can be cheap for a very simple one.
Compare the results with the good channel. When the sound gets weak you have located the area in which the fault lies.
If not then off to the repair shop.
Posted on Jan 27, 2009
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