After an initial period of no probelms the left speaker channel sound deteriorates and then eventually there is no sound at all. I have had this checked 3 times by the service centre - each time they return it working perfectly no being able to reproduce the problem even though they witnessed this in my home environment.
I believe this may be static related and the amp is not earthed as I live in Central europe and this is the standard wiring - unlike the UK that has an earth wire as standard in the power lead. This may explain that when earthed in the test environment that the problem cannot be replicated.
I have switched the left and right speakers to ensure it is not them or the cables. The left speaker and cable performed perfectly on the right channel output and the previously functioning right speaker failed to work when on the left output channel.
I have a DVD and CD player attached and a sub woofer powered through the amp.
The problems lies with the switch relays in the pre-outs for the both the main and center channels. The fix, so to speak is to obtain a simple composite cable and while the amp is on (muted) insert and extract the cable from the pre-out/inputs, do this a few time for each channel and then check levels for each speaker.
This is a know defect with this unit and it's really unfortunate that Yamaha never owned up to it.
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Get a meter and check the resistance on the speaker. Looks like a speaker may be blown but with the description of the crackle noise from the slide controls you might have a bad pot in the unit or the pot has come loose from the board. This could explain why the speaker blew out
Firstly try swopping over the left speaker to the right channel . If still no sound then either the speaker cable will have a break in it & need replaced or the actual speaker will be open circuit. If you get sound from the speaker on this channel then the the speaker is ok. Check your PC's audio set up... Go to Control Panel/ Sounds & Audio devices/ In volume Tab, click in Device volume area... Advanced & then check the Balance settings are not set to one end.
There could already be a problem with the speaker jack, if only one channel is consistently giving no sound on your system.
Try turning the male (connected to speaker wire) jack and you might hear a static crackle while doing this. If you get both channels to produce sound this way, you already have a failing audio jack, and may need replacement later on.
Try this - connect one pair of its speaker wires at a time and test it. Watch the polarity.
• Make sure all cube speaker arrays are connected to the proper terminals according to their position in your room. • Check to be sure all wires are connected to your surround receiver with the proper polarity (+ to + and – to – wires). Incorrect wiring can result in a total loss of module output. • Correct any wiring problems before you plug in your receiver and turn it on.
How do you know the receiver's Left channel isn't the fault? Sounds like a source issue.
Its easy. Jus from task bar click on that Speaker Icon of sound. In that you can select the left channel, right channel or both! Keep the pointer in middle and you will get sound in both the channels! Enjoy
I think you mean the left channel is out but when you use test tone, the sound comes from left and right channels through the right channel speaker. If this is case, the switching IC is malfuncting. Unit needs service