I have only just brought this Panasonic SC-VK660 yesterday, and am annoyed with it aleady. At low volume all I hear is a hissing coming through the speakers from 1 to 15. I can still hear it with the volume cranked up but the other notes make it less noticable. It occurs on all the functions, tuner, cd, aux. I have adjusted the EQ in different settings and also adjusted the trebble so it is -3 but still it hisses. I have also made sure the speaker wires are not near the power cords.
What's next? Is a hissing sound normal for these kinds of units or do you think I should take it back? Any ideas would be great. Thanks
Have you tried to replace your rca cables? sometimes these tend to wearout at the connection point from being pulled off from products they might have been plugged into.also check all your wires for any fraid areas where wire might have been crincked under such items as sofa foot pegs and such. hope this helps
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Disconect the speaker(s) from the system. With a 1.5 volt battery touch the negative wire to the - of the battery. And for a short time only, the plus wire to the + of the battery. You should hear a pop! You might need to put your ear to the tweeter to hear it working. if it doesn't make any sound it's not working. Before chasing around for a new tweeter, open the speaker up and apply the test to the tweeter itself. If it now works the crossover part is faulty.
Tweeters are often the first to go when people run the amp at high volumes, so both could have gone!
Here is how I fixed the hissing noise in my Soundock;
--Pull the bottom plate off (It is attached by 4 screws)
--There is a green motherboard with 2 ribbonwires. .
--One of the ribbonwires (the one the mounts the ribbon vertically) had loosened up.
--Use a tweezers to pop it back into place and that noise will disappear.
This is a design flaw, as the action of inserting/removing your ipod, coupled with the action of setting your sound dock down will work this ribbon loose.