If it looks like there's screws holding the outer housing on.... Un plug it and take out the screws... Look under the hood, but don't touch anything! See any fuses? Is it blown? If so replace it! Plug it in and try it? If no fuses then look for capacitors! They're usually the biggest of the black cylindrical things on the circuit board.... What you gonna do is.... Tap on them one at a time with the radio on and an input source active... So plug in your I pool and turn it on as if you were playing something as normal.... And crank the volume to probably about 25 to 40 percent.(assuming it isn't too loud for ya) and Gently tap the tops of the capacitors... One by one listening for either improvement in sound or staticy chappy sorts of sounds.... You may have to progressively tap harder and harder to get anything... But don't break the friggin things! Tap no harder than maybe the force of flicking a bogie.. Seriously.. Flick a bogie. Right now.... So... Yeah... That hard. If you find a capacitor that acts funny (responds to flicking) then it's shot and needs to be replaced... You could desolder it yourself... Then solder in a new one... Of take it to a shop... Your choice. You might want to you tube desolder in and stuff... I'm not even gonna try typing all that out.
SOURCE: Gem Sound XP-350 both channels failed
Speaker fuses are generally fast-blow styles 250 volt glass
If an amp shuts down, with speakers connected, it sounds like one of the power supply lines does NOT like what it's "seeing" . Probably output transistors bad ( or module)
Take it to a tech.
Scott out.
SOURCE: My technics se hd 51
please bring a good contact cleaner from radio shack near you and apply the spray over the socket of the headphone(the place where you put your headphone jack)take headphone jack out and apply spray in and insert the jack in and out many times.-also check your system setup and confirm that all speaker are on- no mute button pressed-no cable is disconnected.
SOURCE: guitar amp make large crescendo-like noise, loud pop at end.
Same loudness, no speaker? This sounds (no pun intended) like a filter capacitor shorting out. Open it up and VERY CAUTIOUSLY look for what is making the noise. Filter capacitors can eject hot stuff. Very dangerous.
SOURCE: sony amp TA-F417R no sound, when device on temp it may work
My first suspect would be the output relays. These can get corroded over time and the classic symptom is that you get no sound at low volume levels and high volume levels will kick in the sound. There may be other issues as well such as poor solder connections. If you don't have any experience with this type of gear, have this checked by a service center. The cost should be minimal.
Dan
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