Question about Fender ® Frontman 15R Electric Guitar Amplifer

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The amplifier is dead - Fender ® Frontman 15R Electric Guitar Amplifer

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Check the fuse or power converter.

Posted on Mar 10, 2014

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Basically, I turned it on, played it, turned if off, went back to play it and I got a humming noise then it went dead!!??


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Hi have been given a Marshall MBB15 amp to find out why it doesnt produce sound through the input jack, have checked inside, looks like the resistors connected directly to the input jack are dead. Could...


Dead resistors? The evidence would be if the resistors are cracked OR if their is evidence of smoke/fire around them.

In either case, there would LIKELY be damage at least one or two layers deep beyond those resistors if in fact they are fried. If they are cracked physically, teh circuit board also may be cracked due to physical bending. Tripping over an inpout cable can do this.

Causes of this would be shorting the input to power line voltage or the output of a high powered amplifier.

I question that the resistors are "dead".

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