Nokia CK-7W Car Kit Not Muting?

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nafe

Member - Posts: 5

Joined: April 22, 2006

Location: United Kingdom

Posted: April 22, 2006 at 8:24 AM / IP Logged

Hello,

I'm after some advice regards the Nokia CK-7W car kit.

I've just installed a Nokia CK-7W car kit in my W reg year 2000 Alfa 156 but the stereo will not mute? It's connected correctly to the back of the stereo. It's the standard fit Alfa Alpine unit.

The stereo does not have a mute facility/button as far as I can tell, could this be the reason why it won't work?

Is there anything I can do to make the stereo mute?

The stereo in Alfa 156's does not activate when the ignition is operated, it's separate.

Velocity Motors

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Joined: March 08, 2002

Location: Manitoba, Canada

Posted: April 22, 2006 at 9:00 AM / IP Logged

To activate the mute function, the PINK ( or PINK/WHITE ...can't remember ) wire must see ground when turned on and nothing when off. You will need to see if the Nokia mute wire grounds to the Alpine wire with a DMM.

Jeff

Velocity Custom Home Theater

Mobile Audio/Video Specialist

Morden, Manitoba CANADA

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nafe

Member - Posts: 5

Joined: April 22, 2006

Location: United Kingdom

Posted: April 22, 2006 at 9:14 AM / IP Logged

Thanks.

I am a novice on this subject, what's a DMM?

Am i right in saying the nokia mute wire is yellow?

Please explain in a bit more detail if poss?

Velocity Motors

Moderator - Posts: 12,488

Joined: March 08, 2002

Location: Manitoba, Canada

Posted: April 22, 2006 at 9:22 AM / IP Logged

A DMM is a digital multi-meter and on the Nokia there will be a wire that says MUTE and this wire must output a (-) signal in order for the Alipne HU to respond properly and mute when activated. If you take the PINK wire from the Alpine HU and ground it manually while playing music, it will mute and when you lift the wire off of ground it will return to normal volume. Connect the mute wire from the Nokia if it's (-) ato the PINK wire of the Alpine HU and it should work as long as the Nokia wire outputs a (-) ground signal.

Jeff

Velocity Custom Home Theater

Mobile Audio/Video Specialist

Morden, Manitoba CANADA

nafe

Member - Posts: 5

Joined: April 22, 2006

Location: United Kingdom

Posted: April 22, 2006 at 9:25 AM / IP Logged

Thank you very much.............

nafe

Member - Posts: 5

Joined: April 22, 2006

Location: United Kingdom

Posted: April 22, 2006 at 9:56 AM / IP Logged

Just a thought, what is pink wire from the Alpine Head Unit currently connected to?

Will I need to cut the wire?

jmscomm

Member - Posts: 4

Joined: April 24, 2006

Location: Australia

Posted: April 24, 2006 at 5:06 PM / IP Logged

you need to turn the mute function on in the stereo it is factory preset to off

just press menu then scroll to mute and set to 10 not off

Velocity Motors

Moderator - Posts: 12,488

Joined: March 08, 2002

Location: Manitoba, Canada

Posted: April 26, 2006 at 8:10 AM / IP Logged

nafe wrote:

Just a thought, what is pink wire from the Alpine Head Unit currently connected to?

Will I need to cut the wire?

Nothing if it'snot being used.

Jeff

Velocity Custom Home Theater

Mobile Audio/Video Specialist

Morden, Manitoba CANADA

nafe

Member - Posts: 5

Joined: April 22, 2006

Location: United Kingdom

Posted: April 26, 2006 at 8:10 AM / IP Logged

The stereo does not have a menu button.

The manual is no use either as it just contains a very simple statement saying "if a phone car kit is fitted then the sound will aoutomatically mute and the words TELE-MUTE will appear on the display"

Obviously this does not happen and there is no further troubleshooting info.

I could try the solution mentioned previously in this thread but as the hands-free kit is connected correctly to the stereo and the fact the manual is so blunt about it then I wonder if there is a simple solution?

Customautomotiv

Copper - Posts: 128

Joined: March 22, 2005

Location: United States

Posted: April 26, 2006 at 11:59 PM / IP Logged

The mute wire on the CK-7 is yellow. Try using a computer safe test light on the wires on the back of your radio. Just probe each wire until the radio mutes. Once you have located the mute wire(if you have one) just connect the yellow wire from the nokia car kit. If you dont have a mute wire, you can use a relay on the ignition wire of the radio to interupt the audio.

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Nokia CK-7W Car Kit Not Muting?

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