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I accidentally plug in a 110V Companion 5 system into a 220V supply I am a technician could you guide me where to locate the fault and what what componenents would be required to be replaced

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Hello,

The power supply is the fault. The power supply is dangerous to repair if you don't know how it work. I sugest to send it to an electronic repairer.

Posted on May 16, 2017

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What kind of technician are you?

Posted on May 16, 2017

Testimonial: "i am a circuit designer for p.a, amplifiers and speakers. i have a service centre in india though it would be easier if you could advise me your expertise for easy repairs."

  • solver2010 May 16, 2017

    If you are a circuit designer, I am sure that you know that most electronic equipment has fuses inline with the AC input, and sometimes a circuit breaker, or a fusible resistor. Also, if you are a circuit designer, surely you know that the inductive reactance of a transformer primary could limit the risetime of the input current, depending heavily on the instantaneous phase of the sinusoidal waveform applied to the input, so a slow-blow fuse could fail to interrupt the input current flow before the voltage on the internal power supply was far too high to be safe! Do you have a schematic of the unit that endured the input of an value of double what it was designed for? As a starting point, if I were you, I would wire a 100-150 watt incandescent light in SERIES with the AC input of the suspected defective unit, so that if there is a short or low impedance on the input to that device, the voltage and current available to the device under test will be limited by the light bulb load, and you will see the light glowing. With the unit connected that way, an oscillograph ('scope display) of the input voltage across the AC input of the suspected defective unit can tell you a lot!

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Posted on Jan 02, 2017

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1 Answer

I accidentally plugged in my pulmoneb in a 220v outlet


plugging a 110v device into a 220v outlet is not likely, as the plugs are a different configuration. In the event that you somehow managed to do that, your device is probably fried, as that would be to much voltage. Hate to say it; but you are probably gonna need a new one

Nov 27, 2012 | DeVilbiss PulmoNeb Compressor Nebulizer...

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I just bought a computer speaker but it's 110v and my computer is 220v. can i plug the speaker to the computer without damaging the speakers?


Hi ,
If it says it needs a AC 110V connection , you will fry at least the sub . Don't do it ! Connect the device to an AC 220 / 110 V transformer you can find on the net or in all specialized retail shops .
Best regards

Feb 03, 2011 | Bose Companion 5 Multimedia Speaker System...

1 Answer

I wanted to purchase a Bose companion 3 set from the US through ebay. i wanted to know whether they work on 220V and if not how can I make them work at 220V.


Since this unit dose not come with power adaptor. It has direct plug in in to the port behind the sub-woofer unit and other end to the wall outlet. Is there any way to convert the power supply from UK to US (220v to 110v). For example Desktop PCs have a switch behind every desktop unit to change power from 110v to 220v or vise versa.
Anyone has any idea how to make this happen in Bose Companion 3 system.
I bought it from UK and now moved to US and I want it to work in US.
othervise use waltage adapter to use it

Aug 08, 2010 | Bose Companion 3 Computer Speakers

2 Answers

Bose Companion 5 110v/220v short circuit


The fact that everything but the power amp is still working, it could be only a fuse protecting the output that needs replacement although this fuse is probably circuit-wise after the main fuse you have already replaced and could be soldered on the board. Worst case, the output modules are blown and require replacement and depending on the power level it may be worth repairing instead of replacing.
Most modern electronic devices can be set or adapted to line voltages from 100-240 Volts and a good percentage of the devices, using the common switched mode power supply don't need any changes made by the user since they can be inherently 'auto-ranging.'

Apr 04, 2010 | Bose Companion 5 Multimedia Speaker System...

1 Answer

Does the Bose companion 3 have an internal fuse?


Yes. The companion 3 system can be repaired for $75. Call Bose at 800-367-4008. They will also give you a new 1 year warranty.

Jun 19, 2009 | Bose Companion 5 Multimedia Speaker System...

1 Answer

Bose Companion 5 Problems


email support@bose.com or contact a Bose Support Specialist in Germany; or call US support at 1-800-367-4008. Something very odd is happening here. You are using the same laptop, correct? If not, let me know, as there are some things to try. If Bose has a solution, I'd love to hear it.

Mar 19, 2008 | Bose Companion 3 Computer Speakers

1 Answer

Bose Companion 5 Down!


Hi,

While I can not second guess your technician, perhaps the problem may not be that severe. The Bose Companion 5 is only on standby when plug (having no power switch) and therefore the power supply circuitry is the only one working. Chances are it will be only the +5VDC logic supply that is really turned on at that instant. All others would be OFF hence my belief that the problem may be limited to the PSU and/or part of the logic board. Perhaps you can suggest to your tech to test the logic board (motherboard) using an external +5 supply. All others can be be tested and repaired using component replacement.

Should you not be comfortable going this route, perhaps you best bet would then be to get in touch with Bose or their local representative.

You can try looking over the country here and the page will display a Bose contact information. Say the Philippines would be:
Eleksis Marketing Corporation
Unit 206 Fox Square Building
53 Connecticut Street
Northeast Greenhills
San Juan City, Metro Manila, 1500, Philippines
Tel-1: 632 724-9566
Tel-2: 632 724-7527
Fax: 632 724-0176
Email: Click here to send them an email

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Thank you for using FixYa.

Feb 23, 2008 | Bose Companion 3 Computer Speakers

1 Answer

Accidentally plugged the 110V to a 220V


Hi,
you,ll have blown the PSU.
there maybe an internal fuse, located in the PSU. but if smoke was bellowing out, i,d say it went straight past the fuse.
New PSUs the best bet.
Mike @ Compurepair.

Feb 22, 2008 | Computers & Internet

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