Question about Bose Acoustimass 15 System
My sound system has worked fine, up until I turned everything using my harmony remote, and my son had cranked my receiver all the way up. Now, I don't have any sound coming out of my front right and front left speaker. I have switched the speakers with the rears, and I still get sound from the rear channels, but not the front right and left. I think that something is blown in the subwoofer, and I am hoping that it is something simple like a fuse. Is there some sort of surge protection in the subwoofer? My system has a date on it from 1998, and I provide the serial number if that would help.
Sounds like an inadequate ground wire in the signal cable. You may have to replace the cable between the reciever and bass module. It also, however, may be IN the bass or reciever module.
Posted on Aug 05, 2008
Unfortunately many speakers do not have fuses. Most likely the voice coil has opened up inside the speaker itself. You can either get a replacement driver (speaker) or re-cone the one you have. In any case, the driver needs to be replaced.
You can verify this if you use an ohmmeter. With an 8 ohm impedence speaker, the reading should be about 6 ohms. If you read a higher number or infinity, the coil is bad.
Posted on Oct 08, 2008
Sounds like you may have a blown output transistor or chip, which generally show no external signs of damage. This would take an experienced technician to find and fix, and I commend you for knowing to check the speakers, receiver and cables through substitution! If you're handy with a soldering iron and can find the parts, try replacing the output transistors or chips in question. These are what usually fail in audio power amplifiers - also check any power resistors for opens - some of them are designed to act as fuses to protect the more expensive components.
Posted on Dec 29, 2008
I will try as best I can... There is no light on the unit. There is a two position switch, that's your on/off switch located on the botttom of the unit next to the pwr cord input... When the straight lined side is pushed down the unit is energized. When you pwr up the unit you should hear a light bump, not a cracking noise. There is a fuse on the main input/output board that is pretty easy to pop and swap.
Posted on Feb 10, 2009
SOURCE: Left Channel Not Working.
Has it ever worked?
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.
Posted on Apr 28, 2009
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