Question about Bose Acoustimass 5 III System
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Posted on Jan 02, 2017
Hi when you turn on check all your speakers work check connections make sure the wire has no stray strands touching the fault could be in the sub unit this is possible / or your speakers one or more could have gone short circuit due to exessive volume thats if you play loud. Had a party lately .Just joking .Regards kirk
Posted on Dec 10, 2008
The master on/off switch will usually be on the back (or maybe even the bottom) of the largest component, which contains the power and control circuits.
Posted on Dec 28, 2008
SOURCE: Bose Lifestyle V20 Error 180
OK talked with Bose just a minute ago and they were able to correct the issue.
We disabled the power cord from the back of the media console (where the HDMI cables connect) and left it off for a minute or two.
Powered the media console back on and it is working as expected.
Was told by the Bose tech that the common reason for this issue is due to the use of the HDMI cables that have a propritary security protocol that is used between the media console and the component it is attached to (ie TV, Cable/Sat, BluRay ...ect).
I asked if there was a BIOS upgrade if it was indeed a "handshaking" issue and was told there was not one (yet).
If one becomes available, it will be shipped via mail on a CD\DVD that can be used in a CD\DVD player that is connected to the media console using the HDMI cable.
Hope this helps!
Posted on Jan 26, 2009
Honestly speaking you should probably not work on this unit yourself: "There are no user serviceable parts inside"
Even if you are an accomplished Electrical Engineer Bose will not provide the required schematics to troubleshoot and repair this unit.
Are you still undaunted . . . then if the case is the original LS-25 series, there is a hidden catch at the end of the cover furthest from the input connectors that needs to be rotated (until a plastic tab is sticking out), which you can do with a flat bladed screw driver, and you also need to remove a few screws from the bay where all of the connectors reside. Remove the two knobs from the side of the cover. Then hit the case with your fist at the far end (plastic tab) and the cover should then pop off. You may have to hit it hard, with an upward motion.
Note there is not going to be much you can do to fix this beyond replacing the fuse. (Note that the fuse may be soldered in.) The bass amplifier is op-amp based with discrete class G output stage and the twiddler amps are monolithics with discrete class G circuitry shared between several channels.
The power transformer has a thermal fuse in it as well which is not replaceable. If you play the unit loudly for long periods of time and it is not adequately ventilated it is possible for the thermal fuse to open - if this is the case you will definitely need to send it in for service.
When plugged in there are hazardous voltages present on the top PC board where the power connector is located, whether or not the unit is turned on.
Power switching is via a triac controlled by whichever front end you have CD-5? 12V should be present on the mini plug (tip I think, but might be ring) when the music center is on.
There is also offset detection circuitry that will latch the unit off should any output have more than a volt or so of offset.
For more information see following web site:
Posted on Mar 01, 2009
SOURCE: bose companion 3
This is a common problem it seems with the electronics within the speaker set. (Companion 3 with sub and remote pod, aka, 'puck' = help desk support term)
I bought the multimedia speaker set in 2004 and had it replaced in 2005 because the 'puck' would not turn on (no orange light nor green light.) So I called help desk and they accepted the warranty exchange and I mailed the entire system (speakers and all) back to Bose in Markham, Ontario, Canada and they sent it back several weeks later. It worked 5-6 years after that as it is 2009 now, and it has the same problem again (no light on the puck). So I called help desk again and was ran through the same tests again (on/off, power plug off, various audio inputs, etc.) and the guy said to mail it in and they'd fix it as a non-warranty item. Cost: $85(Cdn) for repair + taxes, and $39 for remote pod.
So the sound that I got to enjoy from the Companion 3 system was amazing but electronic quality is very poor. For a set that cost above most other home user sets at FS and BB, it is substandard longevity.
I like Bose and have no complaints about the sound, but I will not buy another Bose multimedia package because at $350 (in 2004), I would expect it to outlast other sets. My friend bought a Logitech speaker set from another company in 2003 and is laughing at me as he realizes this is my second set and it hasn't even lasted as long as his own set.
Posted on Mar 14, 2009
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