We bought our house 7 years ago with an expensive stereo/home theatre system. Recently, our subwoofer started to buzz when we turn on the system but only lasts for 1-2 minutes and then goes away. Always happens just when we turn it on. Is our subwoofer started to go out or is this something that can be fixed?
Well if it buzzes only for a couple minutes after turn on then it could be when the woofer starts pumping it produces pressure in the cabinet which creates a bonding motion that then closes the cracks, kinda like glue. Like blowing a balloon up in a box. The balloon is the pressure, OR Yes it could be your woofer is going bad. All speakers have voice coils. Tiny wire wrapped around a thin layer of cardboard then attached to the cone. This cone could be getting loose. But when the woofer heats up after a couple minutes it probably bonds the tiny wires so then the vibration or buzzing disappears. Over time woofers can die especially if it produces a lot of distortion, In a speakers life distortion kills and it doesn't matter how much power it can handle or how much money you spent on it.
Not all sub-woofers are alike. Some can handle the really low lows, and some can not. Check your settings too. Over time the vibration of the woofer will start to undo the glue, nails, screws, and even burn through the tiny wires in the voice coil. Oh and make your china crawl across the table... Have you been watching a lot more action movies? Some of the older woofers can't handle the newer digital deep bass frequencies... You may have to reconfigure your setup.
SOURCE: sc-ht500 system cable
You cannot wire this system separately, since it is very difficult to separate the power cables from the others which carry the audio parts.if in any case , lets suppose, you could wire the dvd player separetely, you will have no audio since all the audio frequencies are transfered in this cable to the sub woofer and from there to the satellite speakers.
It would be useless to wire it even if we could as there would never be any audio, only video, no matter what disc you use as the only way the audio is comming is throught this system cable to the subwoofer. Actually its the worst idea to implement in a home cinema system, but well, this is old panasonic.. :)
SOURCE: kef kit 100 subwoofer buzzing
if you have still the problem, I got the solution from Kef USA. It is somewhat involved in taking the unit apart and replacing a resistor and capacitor. With the instructions supplied any electronic techician or TV repair man can do it in less then 1 hour. email me and I forward the instruction in PDF: [email protected] . Replace the first X with a and last X with m in my email address.
SOURCE: DVD Home Theatre System Panasonic xv htd-330 dvd won't play
From the manual:
Press STANDBY/ON to put the system in standby, then press and hold the front panel (stop) button for about 8 seconds until the display shows Mem.clr?.
Press the front panel I<<<< or the >>>>I button so that the display shows Interlace?.
Press the front panel >/II button to set to interlace & switch the system back on.
SOURCE: TECHNICS SC-CH550 STEREO SYSTEM
Hi
I belive that you have a lot of dust how is gatherd behind the system in the amplifier and it is preventing it to cool down you need to blow it clean and make sure that you keep the system gets cool air
if the temp in the amplifier gets to high it shut down the system instand of burning it very clever solution from the manufacturer
you have a very good system good luck
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