Extremely loud squealing coming from surround sound receiver!!

Ever check the water pump?

If the unit is around 5-6 years old or less, you have a bad Rotary Encoder. It is an input to the microprocessor IC(a computer within your Bose). If you would like to inquire about repairing your Bose, please visit me at my website, audioserviceclinic.com. You may contact me directly from the site.

Check the alternator belt tension as well as connections that are to the alternator. The "squealing sounds" mean usually stretched or extremely worn or a loose alternator belt. I hope this helps....Steve

I don't think its the CPS, but I do know that WD40 will make a squealing belt even worse. If you havnt replaced the belt yet, I would do that.

Let us know if that helps.

I assume this is an active sub. The amplifier has most likely failed. You have proved the signal source is not the problem, well almost if you can sucessfully connect the aiwa sub to another amp then we will know for sure. Usually amplifiers fail with an output device short circuit. The hum you here is the power supply direct on the speaker, I would not leave it on for long or speaker damage may ensue.

It is possible the lamps may be defective or that they may be the wrong replacement for this model, as it may have a different wattage setup with the ballast. If you want to try to order the TB25 lamp from a different vendor, you can order the original Toshiba replacement lamp for this model (52HM84) from a major Toshiba parts distributor at the link below:

Toshiba 52HM84 Replacement Part TB25 Lamp / Bulb

Hello and welcome to FixYa!

When you say "noise like a bearing" do you mean a shreeking/squealing sound? What is more common on that model than a bearing is the water pump will wear out and emit a LOUD "shreeeeeeeeeeek" sound.
If you look under the control panel on your IWL12 there should be a "tech sheet" that will tell you how to put the machine in "diagnostic mode". (I'm 99% sure on that model you hold down the water temperature DOWN button while pressing the power button and it will go into diagnostics) Run the water pump in diagnostics mode and that will tell you if it's the pump making the noise, as the pump can be run by itself in diagnostic mode.
If it turns out to be the pump it is a part number 430235P and you can order one here:

http://fisherpaykelparts.net/index.php?categoryid=111&productid=3
That site also has service manuals for that model.
Good luck and I hope this is helpful to you.

Most likely the rear drum bearing is worn. There's a "ball and socket" arrangement that supports the drum at the rear and a repair kit for it. Part #5303281153. Should run around $25.

unhhok all the sources from the tv as to eliminate where it might be coming from, hook up one source at a time you might find the problem that way