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What caps might need replacement when a Bose AWRCC2 has ac hum?

Can't find any references about this problem for this particular Bose model. Same problem with older models is addressed, but not for my actual model. I have schematics but nothing else.

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It's not always, as everyone believes, that all capacitors are bad. In your particular case, the capacitors that would cause this, are the 2 large(in physical size and capacitance) directly off the bridge rectifier in the power supply.

Posted on Dec 08, 2014

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1 Answer

Bose radio bad hum


one of the most common sources of hum is a failing power supply.
I don't know your radio specifics..... however, some things to consider/try : if it can be battery powered, try it with batteries.
If hum disappears, then source is power supply. Power supply
hums are usually 60 or 120 Hertz (cycles per second). The most
common failure component in power supply, causing a hum, are
the filter capacitors. If you do try to replace these, be very careful
and discharge the old caps before you remove them - to avoid a
(potentially dangerous) shock... caps can retain a charge for many
days, sometimes. Another source of hum is if the radio is close to
a flourescent light, or other appliance which may radiate power. If so,
try moving radio. If the hum is high pitched, then more info is needed.
Hope this helps!

Jul 14, 2014 | Bose Audio Players & Recorders

1 Answer

AC Hum


If the power supply caps is with the low voltage regulators,

check/replace the regulators that are connected to it.

Aug 16, 2012 | Audio Players & Recorders

1 Answer

I have a BOSE, model # AWR1-1W that has a loud hum that almost drowns out the music. What do I need to look at to cure this problem?


Need to know is ti a first generation of the bose wave radio or second, could you tell what battery it has? Also does it have an external AM antenna? With old radio, first generation, you will need to replaced all capacitors, And I mean ALL. Radio will be good as new. Unless radio suffered a some kind of liquid damage and then it could be anything. Good place to repair Bose wave radio in Chicago, Electronic Engineers. 773-202-0909

Dec 09, 2010 | Bose Wave Radio

1 Answer

Have a Bose wave Music Sys model AWRCC2 with stuck


Yes I think you can, get out your tools and take apart the unit, what do you have to loose you can always take it to a pro if you can't get it out. Be careful to unplug the unit. Don't force anything when you take it apart, be careful not to break any parts, put all pieces back together as you took them apart. Should be very straight forward if you are careful at what you do, get a bowl to put small parts in. Good Luck.....

Apr 07, 2010 | Bose Wave Radio

1 Answer

We have a bose wave music system model awrcc2 unit that made a poping sound & now it just buzzes. we can hear music but with a loud hum.


Sounds like you've blown a capacitor in the power supply section. Unfortunately, Bose does not release their parts lists or schematics, effectively creating a monopoly for parts and repairs. In fact, their web site says that the Bose factory is the only option for service or repair. They used to list a flat rate repair charge on the web site, but removed it - probably because it scared too many people. Their troubleshooting guide (below) might help, but it's very simplistic.

Before you invest in expensive factory repair on one of these trouble prone sets, you might want to investigate the new HD radios -- better sound at a MUCH lower price.

http://www.bose.com/controller?event=VIEW_STATIC_PAGE_EVENT&url=/customer_service/owners/troubleshoot/index.jsp

Jan 25, 2009 | Bose Wave Radio

2 Answers

Bose Wave AWRCC2 CD "not playable"


I had the same problem yesterday on my new Bose Wave Music System. I just kept on pressing reinsert everytime the CD got rejected and suddenly it started accepting CD's again.

May 06, 2008 | Bose Wave Radio II

1 Answer

Cd "not playable" on Bose Wave AWrcc2


Sounds like a weak or bad optical pick-up. You could try gently cleaning it, but you'll probably have to send to Bose for repair.

May 06, 2008 | Bose Wave Radio

1 Answer

Bose Wave AWRCC2 error message


Which error, you did'nt put it in the post.

Mar 31, 2008 | Bose Wave Radio

2 Answers

Bose Wave radio humming noise


Actually the problem was caused by a bad 470uf cap, that was used to filter the powersupply for all the analog amps. Replaced the cap the unit works like new.

Mar 07, 2008 | Bose Wave Radio

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