Bose Sounds

[Derek Pulvino]

Ken,

As I recall, it's capacitors gone to pot.  I'm sure someone will send  
you a link on here, but I know way back when Brett put together a "do- 
it yourself" set of instructions.  I don't recall the link and no  
longer have any of my records.  Generally, the fix is removing and  
replacing five or so capacitors from the amplifier boards.  The  
instructions give the capacitors, values, locations, back-story, etc.

If you're moderately handy with a soldering iron and have some time,  
find those instructions, get yourself a digikey catalog, order the  
parts, and have at it.  Probably 10 to 20 bucks in parts tops to fix  
both.

Derek P


On Nov 22, 2008, at 5:51 PM, 200q20v-request at audifans.com wrote:

> Message: 3
> Date: Sat, 22 Nov 2008 16:17:17 -0700
> From: "Kenneth Keith" <auditude at gmail.com>
> Subject: BOSE sounds
> To: "200q20V mailing list" <200q20v at audifans.com>
> Message-ID:
> 	<2419862c0811221517g2b4e6e05h1237e19d825d9961 at mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1
>
> 200q20v'ers,
>
> I was able to swap in a different factory head unit, this one  
> refurbished,
> and it didn't ask me for a security code.  The rear speakers that  
> were just
> replaced under the recall campaign sound really good, but the front  
> ones,
> especially the driver's side, sound like something is wrong.  There  
> was a
> screeching sound and a lot of crackly static noise like a blown  
> speaker or
> loose connection, but the screeching has seemingly gone away.   
> Also, it was
> making this really loud *BEEP* noise when I would hit scan or  
> select or set
> a preset.   That crazy beeping has stopped, so I don't know if some
> questionable circuit has warmed up and maybe a ground path has been
> established.
>
> I wonder if there is something in the front door speakers that I can
> resolder or replace that isn't covered by the recall campaign.  I'm  
> actually
> somewhat impressed by the fidelity of the factory rear speakers, so  
> I'm
> wondering if I can get the whole setup up to par how it would sound.
>
> Does anyone know if the recall only applies to rear speakers, and  
> if so, is
> there something I can do to correct a problem with the fronts?
>
> Thanks,
>
> Kenneth