Omega Owners Forum

Omega Help Area => Omega Electrical and Audio Help => Topic started by: Corrado1441 on 30 November 2011, 22:49:08

Title: Bose Audio System Fault
Post by: Corrado1441 on 30 November 2011, 22:49:08: Hi having a problem with the Bose system in a 2003 Vauxhall Omega Estate.
The system plays fine then the sound will just disappear but the CD continues to play.
The sound can be gone for various lengths of time.
I have got a spare used amplifier but this has made no change.
It kind of points to a faulty headunit but wanted to see if anyone had come across this problem

Thanks
Title: Re: Bose Audio System Fault
Post by: freecall666 on 01 December 2011, 02:38:50: sounds like it could be the amp is getting to hot, is there room at the back of the unit?
Title: Re: Bose Audio System Fault
Post by: tunnie on 01 December 2011, 09:36:11: Quote from: Corrado1441 on 30 November 2011, 22:49:08
Hi having a problem with the Bose system in a 2003 Vauxhall Omega Estate.
The system plays fine then the sound will just disappear but the CD continues to play.
The sound can be gone for various lengths of time.
I have got a spare used amplifier but this has made no change.
It kind of points to a faulty headunit but wanted to see if anyone had come across this problem

Thanks

Sounds like a tired laser to me, are you using CD-R's in the changer?
Title: Re: Bose Audio System Fault
Post by: TheBoy on 01 December 2011, 18:58:07: Does it do it on all sources - eg tuner AND CDC?

If so, the fault is usually the rear board at the top of the NCDC unit.
Title: Re: Bose Audio System Fault
Post by: Corrado1441 on 02 December 2011, 08:20:34: NCDC unit ??
Title: Re: Bose Audio System Fault
Post by: twiglet on 02 December 2011, 10:20:41: NCDC is the model of head unit fitted to the later Omega's with built in Sat Nav. EG, NCDC2013 or NCDC2015.

If you don't have sat nav, you probably have a CCR2006 headunit fitted. Radio/Tape/4 CD Changer...
Title: Re: Bose Audio System Fault
Post by: TheBoy on 02 December 2011, 17:29:09: Ah, yes, it may have a CCR2006. Let me pop the top off one, see the board layout...
Title: Re: Bose Audio System Fault
Post by: jonny2112 on 02 December 2011, 19:39:53: Quote from: TheBoy on 02 December 2011, 17:29:09
Ah, yes, it may have a CCR2006. Let me pop the top off one, see the board layout...

Got some spare ??? ;)
Title: Re: Bose Audio System Fault
Post by: albitz on 02 December 2011, 20:03:51: He did have a spare rear board,but I had it. :P ;D...............its possible he has a collection though. ;) ::)
Title: Re: Bose Audio System Fault
Post by: jonny2112 on 02 December 2011, 21:04:23: You never know with TB! 8)
Title: Re: Bose Audio System Fault
Post by: Corrado1441 on 02 December 2011, 21:45:07: :) It's a NCDC 2013 unit. We replaced it with an Alpine to give him Bluetooth and iPod control. Another query is it possible to keep the fuel consumption reading etc now the factory unit has been removed ??

Thanks
Title: Re: Bose Audio System Fault
Post by: Dave DND on 06 December 2011, 11:14:50: Your loss of audio is probably the BOSE amp shutting down by overdriving it with a non-compatable Alpine head unit.

;)
Title: Re: Bose Audio System Fault
Post by: tunnie on 06 December 2011, 15:16:57: Quote from: Corrado1441 on 02 December 2011, 21:45:07
:) It's a NCDC 2013 unit. We replaced it with an Alpine to give him Bluetooth and iPod control. Another query is it possible to keep the fuel consumption reading etc now the factory unit has been removed ??

Thanks

1) Bad idea, that Alpine unit won't last with Bose speakers, loom and Amp. It will go bang very soon :)

2) No.
Title: Re: Bose Audio System Fault
Post by: albitz on 06 December 2011, 15:52:57: Other way round surely ? :-\
Title: Re: Bose Audio System Fault
Post by: Dave DND on 06 December 2011, 16:46:37: Quote from: Albs on 06 December 2011, 15:52:57
Other way round surely ? :-\

The Alpine will overdrive the BOSE amp causing a failure of the amp, which in turn may emit a faulty square wave output which will destroy the speakers - meanwhile the Alpine head will now see the blown amp as a short circuit, and will then fry the internal amplifier IC.

Bottom line, its all going to end in tears.

:'(
Title: Re: Bose Audio System Fault
Post by: Dave DND on 06 December 2011, 17:26:05: Back to OP

Quote
Hi having a problem with the Bose system in a 2003 Vauxhall Omega Estate.
The system plays fine then the sound will just disappear but the CD continues to play.

Is this with the original head unit or the Alpine you replaced it with ?

???
Title: Re: Bose Audio System Fault
Post by: Corrado1441 on 06 December 2011, 21:26:46: Fault is with the original headunit, we only fitted the Alpine to get him sound again. Why is the Alpine going to overdrive the BOSE amplifier, we are using the remote turn on to power the amplifier on just like the factory headunit did.
Title: Re: Bose Audio System Fault
Post by: Dave DND on 06 December 2011, 22:38:01: The output levels of the Alpine do not match the input levels of the Bose

This is very well documented on ths forum, and even answered on the BOSE website

Take a few moments to have a read through some old posts
Title: Re: Bose Audio System Fault
Post by: fiend61 on 06 December 2011, 22:40:21: was this happening with the original h/u ?? did you say it was a ncdc2013??
Title: Re: Bose Audio System Fault
Post by: Corrado1441 on 07 December 2011, 14:55:06: So does anyone have info on the fuel consumption computer query ??
Title: Re: Bose Audio System Fault
Post by: Dave DND on 07 December 2011, 15:17:48: Quote from: Corrado1441 on 07 December 2011, 14:55:06
So does anyone have info on the fuel consumption computer query ??

Already answered by Tunnie, (reply 13) who said NO.

Not much point in answering your questions if you are not going to read the replies is there ::)

Most of the display functions are driven by the head unit -

No NCDCxxx stereo = very limited display info

;)
Title: Re: Bose Audio System Fault
Post by: tunnie on 07 December 2011, 17:24:20: Quote from: Corrado1441 on 07 December 2011, 14:55:06
So does anyone have info on the fuel consumption computer query ??

As Dave DND already said, I've already answered that:

Quote from: tunnie on 06 December 2011, 15:16:57
Quote from: Corrado1441 on 02 December 2011, 21:45:07
:) It's a NCDC 2013 unit. We replaced it with an Alpine to give him Bluetooth and iPod control. Another query is it possible to keep the fuel consumption reading etc now the factory unit has been removed ??

Thanks

1) Bad idea, that Alpine unit won't last with Bose speakers, loom and Amp. It will go bang very soon :)

2) No.
Title: Re: Bose Audio System Fault
Post by: Jimbob on 07 December 2011, 17:32:23: actually computer functions can be retrofitted with a new stalk, mid, and some extra wiring iirc.
Title: Re: Bose Audio System Fault
Post by: Corrado1441 on 08 December 2011, 21:20:57: Sounds interesting, have you any more info on the retro fitting ? Also anyone do repairs on the 2013 headunit ?

Thanks