No sound on Stereo

[quattro]

The sound on my son's HiFi works intermittently it shows up on the digital display that it is working but no sound comes out of the speakers . A few weeks ago it started working again but it has gone back to its ab normal state now . Has anyone else experienced this with their HiFis and is there any cure ?

[xyzzyplugh]

I had this problem, intermittent is the worst; whenever I sent it for repair, it behaved 'normally' until it came home again! Try talking to it, (nicely) And don't call me 'nutty', else why does everyone talk to their car?, Machines have 'spiwit' ['Fwee Bwian], When I got my first PC, my video packed up just out of jealousy. same day. (same time.)
"Sounds" like a loose speaker wire, or a speaker wire with a break somewhere. Replace speaker wires. If problem persists, then at least you'll know it's not the speaker wires. Actually, it's highly unlikely that there would be a disconnect in left AND right speaker wires, so you already know it's probably not the speaker wires. So, something after the VU meters and before the Output; When the sound cuts out, can you still hear it on headphones? Could it be a break or dry joint at the amplifier. Got a circuit tester? You possibly need better help than this...

[quattro]

Thanks but I tried the speaker cables and its one of those with five speakers so they were all connected I might try the remote control as a last resort

[BenDToy]

Just an idea, suggested by something in xyzzyplugh's answer. The one part of the system which could cause this type of effect is the headphone socket. When you put a headphone plug in the socket, it isolates the speakers. Worth looking for a loose wire or something there. Alternatively there may be a switch to swap from one set of speakers to another. Is it faulty? Sorry I can't think of any more just now.

[Mintox]

Whats the make of the hi-fi??

[darth vader]

Try shouting "work you ba$tard" at it. If it still refuses to cooperate then throw it out of the window. (Vivian Basterd methodology for fixing electronic gadgets)

[KARL]

Might be an output stage failure - eliminate this possibility by listening on headphones if it has one. Continuous sound on headphones means output is continuous, so must be somewher between output stage and speakers. It is most unlikely that speakers themselves fail simultaneously on both sides (left and right).