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chances are that you have blown part of the circuitry insode the power supply. The power supply is recieving power, hence the standby light but not giving any actual output. If you are competant with electronics and can work on the power supply safely, take a part the power supply and look for any components which look to have scorching around them and test for operation. Obviously make sure that the units is UNPLUGGED from the mains supply before attepting this.
Subwoofers produce very high levels of vibration due to the intensity of their job. But the problem you are facing is a problem with the power pack. The power pack on the woofer is not supplying properly therefore the light/volume not coming on when the unit is unplugged and replugged. This also affects the woofer when you turn the amp to high because as a result of the power coming from the amp not being properly distributed instead of the power which flows into the woofer from the amp is not distributed accordingly it could blow the woofer so before it gets to that stage the unit shuts down. All you have to do is get an expert to help you get and replace the power pack. Hope this solution has been helpful?
Well as I see from the owner manual for this device the sub is active one and my opinion is that electric is your problem.The power of the sub and main unit must be on the same phase otherwise you'll hear brrrrr or frequency of your main unit power supply on the sub.Thats why sound changes when you open or close the door.Take one power distribution cord (get power for bought devices from the same place) and connect main unit and the sub on it and then try.I hope that this will help you
Unplug all of the speakers and power on.Its possible that one of the speakers is causing the protection circuit to activate.If powered on and subwoofer works start reconnecting one speaker at a time( after powered off) and retest each time.One Speaker may be bad.Its also possible the output ic is failing under a speaker load.There are no fuses related to this issue.If its not a speaker problem then the subwoofer will need to be serviced.
my power goes to the subwoofer and the little green light comes on for just a second and the you hear a click sound and the subwoofer power goes out. I have the JVC DVD Digital Cinema System TH-C90. Can you please help???
I could either be the sub or the main unit. The main unit actually sends a signal to the sub to turn it on so if that circuit is bad in the main unit the sub is never going to come on. I've also seen bad cables (You'd be amazed at how stubborn people can be when din connectors don't cooperate).