Question about JVC RX-318 Receiver

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JVC RX-318 keeps blowing fuses

I replaced a blown fuse and everytime I replace the fuse and turn the unit back on, the fuse blows instantly.
What is wrong??

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Could be several things, speaker wires touching,shorted output transistors, a shorted rectifier diode,bad filter caps in the power supply,those are the most common

Posted on Jan 06, 2009

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I turn the power on to my RX-318 and a few seconds later it sounds like something else is kicking on....then I dont hear any sound from my speakers. I dont know if theres a fuse blown, the amp is going out...


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The likely cause of this is a dead short in the power supply. I don't receal the specifics of this unit, but there should be a set of four(4) diodes or a single bridge rectifier in the main power supply area. Check this/these for a direct short using a diode checker. Other than that, the output transistors being shorted can cause hte same symptom. Without seeing the actual unit, I can not tell for sure. If you know how, check the output transistors as well. Report your results here.

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1 Answer

Keeps blowing fuse.


Dissconnect ALL speakers from back of unit then try to turn on.
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If not, you have a more serious problem.
DO NOT replace the fuse with anything else but what was specified, as it can cause a fire!

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1 Answer

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