Omega Owners Forum

Omega Help Area => Omega Electrical and Audio Help => Topic started by: johnnycboy on 28 January 2010, 20:03:35

Title: NCDC 2013
Post by: johnnycboy on 28 January 2010, 20:03:35
Courtesy of VXL V6, fitted new amp board in and now all working.  Had a sneaky suspension it was not amp playing up.  Upon further investigation found the connector on main board where fasia connects to had broken away and the connection were free suspended.  managed to fit the front fascia correctly and bingo.  The only problem I am aware of now is the Stereo will not turn off on the ignition key.  So any any ideas would be much appreciated.  Also where I have put the new board in, will I have to have the system tech 2'd to the car.  Not had a chance to run the computer to see if its monitoring correctly.

Apart from that I'm a happy man :y
Title: Re: NCDC 2013
Post by: Mr Hagon on 28 January 2010, 21:56:11
Long shot, but could it be that the stereo is set to be independant of the ignition.

If so I think the setting you're looking for is under the tuner function menu and called mode retainment.
Title: Re: NCDC 2013
Post by: Dave DND on 28 January 2010, 22:03:52
I`d be checking the connector again
Title: Re: NCDC 2013
Post by: johnnycboy on 29 January 2010, 06:12:57
Quote
Long shot, but could it be that the stereo is set to be independant of the ignition.

If so I think the setting you're looking for is under the tuner function menu and called mode retainment.

Your long shot paid off :y.  Thank you. All working correctly now.  Thats what I love about this site.  Kepp up the good work fellow oofer's :y
Title: Re: NCDC 2013
Post by: Mr Hagon on 29 January 2010, 08:21:14
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Quote
Long shot, but could it be that the stereo is set to be independant of the ignition.

If so I think the setting you're looking for is under the tuner function menu and called mode retainment.

Your long shot paid off :y.  Thank you. All working correctly now.  Thats what I love about this site.  Kepp up the good work fellow oofer's :y
Excellent, never thought that my long shot would pay off.  Glad to know that it helped a fellow OOFer  :y.
Title: Re: NCDC 2013
Post by: Dave DND on 29 January 2010, 08:41:23
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Long shot, but could it be that the stereo is set to be independant of the ignition.

If so I think the setting you're looking for is under the tuner function menu and called mode retainment.

Your long shot paid off :y.  Thank you. All working correctly now.  Thats what I love about this site.  Kepp up the good work fellow oofer's :y
Excellent, never thought that my long shot would pay off.  Glad to know that it helped a fellow OOFer  :y.

Well diagnosed !!
Updated my records, as I wasn`t aware of that one !!

 :-[

Title: Re: NCDC 2013
Post by: johnnycboy on 04 February 2010, 14:45:32
Just after a bit more info - there is a smoothing cap 47uF, near the amp chip. anybody know if this is polarity concious.  Does not show any negative sign so assuming not. The only reason I ask is mines broke and the spare I had the legs were so brittle they snapped off. any help appreciated.
Title: Re: NCDC 2013
Post by: Dave DND on 04 February 2010, 15:58:44
Quote
Just after a bit more info - there is a smoothing cap 47uF, near the amp chip. anybody know if this is polarity concious.  Does not show any negative sign so assuming not. The only reason I ask is mines broke and the spare I had the legs were so brittle they snapped off. any help appreciated.

If there are no markings on the cap or the board, then probably not.
Title: Re: NCDC 2013
Post by: johnnycboy on 04 February 2010, 16:15:57
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Quote
Just after a bit more info - there is a smoothing cap 47uF, near the amp chip. anybody know if this is polarity concious.  Does not show any negative sign so assuming not. The only reason I ask is mines broke and the spare I had the legs were so brittle they snapped off. any help appreciated.

If there are no markings on the cap or the board, then probably not.

Believe it or not Dave - been doing some more investigation. looks like they are polarity concious. see here :- http://www.rapidonline.com/sku/Electronic-Components/Capacitors/Electrolytic/SMD-Standard-electrolytic-85-deg-C-capacitors/71098/11-2265.  Just don't know how to tell the neg side unless its the blue mark on top of the cap :-/
My mistake its a 470uF cap :-[
Title: Re: NCDC 2013
Post by: Dave DND on 04 February 2010, 16:34:36
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Quote
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Just after a bit more info - there is a smoothing cap 47uF, near the amp chip. anybody know if this is polarity concious.  Does not show any negative sign so assuming not. The only reason I ask is mines broke and the spare I had the legs were so brittle they snapped off. any help appreciated.

If there are no markings on the cap or the board, then probably not.

Believe it or not Dave - been doing some more investigation. looks like they are polarity concious. see here :- http://www.rapidonline.com/sku/Electronic-Components/Capacitors/Electrolytic/SMD-Standard-electrolytic-85-deg-C-capacitors/71098/11-2265.  Just don't know how to tell the neg side unless its the blue mark on top of the cap :-/
My mistake its a 470uF cap :-[

If a capacitor has a marking, its usually common practice for the -ve side to be identified. The same goes for the circuit board.

If the board is marked then a polarity sensitive cap MUST go in place, but if the board is unmarked, then you can NOT assume that it is a non-polarised cap, you would need to refer to the service manual or another unit for reference.
Title: Re: NCDC 2013
Post by: johnnycboy on 04 February 2010, 16:40:08
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Quote
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Just after a bit more info - there is a smoothing cap 47uF, near the amp chip. anybody know if this is polarity concious.  Does not show any negative sign so assuming not. The only reason I ask is mines broke and the spare I had the legs were so brittle they snapped off. any help appreciated.

If there are no markings on the cap or the board, then probably not.

Believe it or not Dave - been doing some more investigation. looks like they are polarity concious. see here :- http://www.rapidonline.com/sku/Electronic-Components/Capacitors/Electrolytic/SMD-Standard-electrolytic-85-deg-C-capacitors/71098/11-2265.  Just don't know how to tell the neg side unless its the blue mark on top of the cap :-/
My mistake its a 470uF cap :-[

If a capacitor has a marking, its usually common practice for the -ve side to be identified. The same goes for the circuit board.

If the board is marked then a polarity sensitive cap MUST go in place, but if the board is unmarked, then you can NOT assume that it is a non-polarised cap, you would need to refer to the service manual or another unit for reference.

I agree with you, any ideas where I can get a service manual from :exclamation

As for common practice your talking about Omegas here, nothing ever common practice with them ::)
Title: Re: NCDC 2013
Post by: Dave DND on 04 February 2010, 16:49:15
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I agree with you, any ideas where I can get a service manual from

 ;D ;D ;D ;D ;D

Sorry, that request always makes me laugh

18 years of fixing the stuff, and I`ve never seen nor heard of a manual for that one !!
Title: Re: NCDC 2013
Post by: johnnycboy on 04 February 2010, 16:55:30
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Quote
I agree with you, any ideas where I can get a service manual from

 ;D ;D ;D ;D ;D

Sorry, that request always makes me laugh

18 years of fixing the stuff, and I`ve never seen nor heard of a manual for that one
!!

How did I know you was going to say that ::)

So next question where can I get one of these caps or am I p@ssing in the wind ;)

Title: Re: NCDC 2013
Post by: Dave DND on 04 February 2010, 17:25:03
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Quote
Quote
I agree with you, any ideas where I can get a service manual from

 ;D ;D ;D ;D ;D

Sorry, that request always makes me laugh

18 years of fixing the stuff, and I`ve never seen nor heard of a manual for that one
!!

How did I know you was going to say that ::)

So next question where can I get one of these caps or am I p@ssing in the wind ;)


Checking the direction of the wind before I answer

 :-X

There must be someone on here with some scrap units that you could rob some bits off

 :-/
Title: Re: NCDC 2013
Post by: Marks DTM Calib on 04 February 2010, 17:43:36
If its 47uF then it will be polarity sensitive as it will be electrolytic or a tant.

You can get some ceramics (which are not polarity sensitive) that size now but, there expensive and not liked as thier size and fragility exposs them to cracking during reflow processes so are considered a last resort and only used where mega low ESR is required e.g. sensitive DC-DC convertors.

If it was fitted the wrong way round, you would now know due to either a small charred mess (tant) or a load of paper type substance which would now be inside the unit!
Title: Re: NCDC 2013
Post by: johnnycboy on 04 February 2010, 17:44:00
Quote
Quote
Quote
Quote
I agree with you, any ideas where I can get a service manual from

 ;D ;D ;D ;D ;D

Sorry, that request always makes me laugh

18 years of fixing the stuff, and I`ve never seen nor heard of a manual for that one
!!

How did I know you was going to say that ::)

So next question where can I get one of these caps or am I p@ssing in the wind ;)


Checking the direction of the wind before I answer

 :-X

There must be someone on here with some scrap units that you could rob some bits off

 :-/


Thanks DND :y
Title: Re: NCDC 2013
Post by: Marks DTM Calib on 04 February 2010, 17:46:54
Get me a pic of the cap and the voltage rating and I will sort you one.
Title: Re: NCDC 2013
Post by: Marks DTM Calib on 04 February 2010, 17:49:31
Or is it a 16V electrolytic 470uF part as per the rapid link?
Title: Re: NCDC 2013
Post by: johnnycboy on 04 February 2010, 19:33:07
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Get me a pic of the cap and the voltage rating and I will sort you one.

(http://i305.photobucket.com/albums/nn208/johnnycboy/100_1974.jpg)

Not the best pic, but you get the jist hopefully.  cap is 16v . cheers