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superspoons



Member Since: 16 Apr 2012
Location: Herts
Posts: 314
England 1998 Defender 90 V8 Petrol 50th Auto Atlantis Blue
CD's skipping when I turn up the volume...why?
I have a recent CD/iPod compatible Kenwood head-unit installed and connected up to a new Alpine sub (with built in amp). It all works fine except that when I turn the volume up to a decent level the CD starts to skip as if it's scratched. Turn it back down and its fine again. When I listen to the radio or iPod at any volume it's fine.

Any ideas why? Is the Kenwood not up to the job ? Earth not good enough on the sub? Cheers,
Superspoons
Post #185139 14th Nov 2012 10:19pm
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Laurie



Member Since: 22 Feb 2008
Location: Sussex, England
Posts: 2897
England 2005 Defender 90 Td5 XS CSW Bonatti Grey
Too much bass? Rolling Eyes 
Post #185141 14th Nov 2012 10:32pm
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AndyS



Member Since: 18 Aug 2012
Location: London
Posts: 595
United Kingdom 2011 Defender 110 Puma 2.4 XS CSW Sumatra Black
Transport is fudged, take the head unit back.
Post #185144 14th Nov 2012 10:42pm
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superspoons



Member Since: 16 Apr 2012
Location: Herts
Posts: 314
England 1998 Defender 90 V8 Petrol 50th Auto Atlantis Blue
Laurie wrote:
Too much bass? Rolling Eyes


Could be.... I do like to belt out a bit of The Cult now and then Laughing Cheers,
Superspoons
Post #185145 14th Nov 2012 10:43pm
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superspoons



Member Since: 16 Apr 2012
Location: Herts
Posts: 314
England 1998 Defender 90 V8 Petrol 50th Auto Atlantis Blue
AndyS wrote:
Transport is fudged, take the head unit back.


It's about 2 years old now (used to be in my TD5)... looks like a good excuse to get a new unit Smile Cheers. Cheers,
Superspoons
Post #185146 14th Nov 2012 10:47pm
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 19611
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If it was bass vibration then the CD would skip when driving over a rough surface too. If it doesn't it's not that. Try it without the sub and see if it does then or not if it still does it'll likely be the HU laser misreading or something electronic malfunctioning inside. Diesel$ Live$ Matter. ⛽️🛢️👨‍🔧🧰⚙️ RED, WHITE & BOOST! 🇬🇧
Post #185166 14th Nov 2012 11:20pm
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AndyS



Member Since: 18 Aug 2012
Location: London
Posts: 595
United Kingdom 2011 Defender 110 Puma 2.4 XS CSW Sumatra Black
My home system kicks out enough bass to shake the front door and the CD player just chugs along fine, it ought to be able to handle some bass (imagine the demonstrator cars at JBL etc, they'd be fudged if the CD player couldn't handle a bit of bass).

My Smart had a skipping problem with the CD player, I took it back and they replaced the transport.
Post #185171 14th Nov 2012 11:26pm
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 19611
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AndyS wrote:
I took it back and they replaced the transport.

What is that exactly?

I also never use CD's in mine only iPod / radio because CD's and Defenders don't mix very well IMHO. Especially with the state of the roads. Rolling Eyes Diesel$ Live$ Matter. ⛽️🛢️👨‍🔧🧰⚙️ RED, WHITE & BOOST! 🇬🇧
Post #185174 14th Nov 2012 11:30pm
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superspoons



Member Since: 16 Apr 2012
Location: Herts
Posts: 314
England 1998 Defender 90 V8 Petrol 50th Auto Atlantis Blue
I think one of these will do nicely...

http://www.kenwood-electronics.co.uk/produ...DC-BT92SD/ Cheers,
Superspoons
Post #185176 14th Nov 2012 11:35pm
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 19611
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I would recommend it. Then again I am biased. Whistle You'll also be able to have green illumination too that will match the dash.

Thumbs Up Diesel$ Live$ Matter. ⛽️🛢️👨‍🔧🧰⚙️ RED, WHITE & BOOST! 🇬🇧
Post #185178 14th Nov 2012 11:38pm
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AndyS



Member Since: 18 Aug 2012
Location: London
Posts: 595
United Kingdom 2011 Defender 110 Puma 2.4 XS CSW Sumatra Black
A CD transport is the actual mechanism that holds the CD and laser in position while the magic is happening, the guts of the system if you like. If it's skipping then we can assume the laser is loosing position on the CD by either the laser loosing it's tracking position or the CD moving, either way it's the transport that's to blame.

When you get into it, you'll find a lot of systems from different manufacturers us the same CD transport but add their own electronics to it to produce their own sound.
Post #185184 14th Nov 2012 11:44pm
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XS Pete



Member Since: 13 Jan 2011
Location: Suffolk
Posts: 632
England 2011 Defender 90 Puma 2.4 XS CSW Stornoway Grey
This isn't one of those head units where you can set the peak voltage level for the sub output, or the impedance match with a switch on the back is it? If it is, you may be driving it too hard and causing HU PSU output voltage to partially collapse, hence upsetting the CD transport.

This may also be configurable in one of the settings menus.

Pete
Post #185187 14th Nov 2012 11:51pm
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superspoons



Member Since: 16 Apr 2012
Location: Herts
Posts: 314
England 1998 Defender 90 V8 Petrol 50th Auto Atlantis Blue
I've been through the settings and switched the Sub off via the menu on the unit - a Kenwood KDC-4547U - still skips through the CD when the volume is turned up. Can't find anything on the unit or in the manual to switch off / do.... Think it's a trip to Halfrauds/Eblag for me Sad

Manual is here if anyone can point me to a feature... -

http://manual.kenwood.com/files/4acea7a1a4efd.pdf Cheers,
Superspoons
Post #185320 15th Nov 2012 7:46pm
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 19611
United Kingdom 
Can't see anything that would cause it in the manual. I would exchange it as it shouldn't do it. Regardless of where purchased from would record a video / sound recording of the actual CD skipping happening too. That way you have back up proof to show that it is doing what it has been. otherwise they might just try and fob you off and say the volume is probably too high. Diesel$ Live$ Matter. ⛽️🛢️👨‍🔧🧰⚙️ RED, WHITE & BOOST! 🇬🇧
Post #185322 15th Nov 2012 7:53pm
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superspoons



Member Since: 16 Apr 2012
Location: Herts
Posts: 314
England 1998 Defender 90 V8 Petrol 50th Auto Atlantis Blue
Cheers for taking the time to look Steve. I'll try and find the receipt from Halfords and pop it back...I think it's a good 2+ years old now though...not sure how receptive they will be. Cheers,
Superspoons
Post #185333 15th Nov 2012 8:23pm
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