4200 CC 2005/05 single CD in NIT crackling noise

A

Andy in Nottingham

New Member
Messages
9
Hi All, I have just purchased my 4200 CC.

The single CD player in the armrest plays but there is a lot of crackling noise...seems to come and go. Also when switching to Nav and inserting the nav disc sometimes it says "no disc". It seems not to recognise the nav disk if the CD music was crackling prior to swapping top Nav.

If when playing a CD was only a little crackling then when swapping to Nav it seems to recognise the nav disc when inserted.

The radio plays fine with sound quality problem.

Can anyone help with what the problem may be?

Andy
 
safrane

safrane

Member
Messages
16,896
Morning Andy.

It may be down to dust/static or damage to the tracking eye.

There is a post on here on how to remove the NIT from the arm rest.
 
Andyk

Andyk

Member
Messages
61,185
A warm welcome Andy of Nottingham...Hope you get what you need from the forum.
 
CatmanV2

CatmanV2

Member
Messages
48,859
Unless these NITs have some kind of custom mechanism in them, damage of the type Safrane describes would account for the disc unreadable, but (IME) not the scratchy noise.

I'd postulate that there are one or more lose / dry connections on unit betwixt the drive unit /or DAC / analogue audio sections causing analogue signal drop out (crackling) and some kind of digital comms error (failure to read the Nav CD). This is based on the description of 'crackling' If it's more of a skip / missing music, then Safrane's explanation is about as likely (if not more so given how badly some in car CD readers handle bumps in the road) ;)

Sadly I don't know where you could get it checked out. I seem to recall that someone mentioned a thread (before my time) where such a place was found.

The only NIT I can see on ebay is one from a car that the consensus view is has been underwater, or at least left around with the roof down.

Good luck!

C
 
A

Andy in Nottingham

New Member
Messages
9
Hello C,

Thanks for the input. Just got back from a drive out. The CD worked without crackling and it read the nav disk. Although the nav dropped out once. I ejected it and reloaded and it read it OK again. So intermittent dry connections could be the problem.

I noticed a bit of flickering on the display screen when in nav view and the voice commands sounded a bit "shaky". Do you think this could be related to dry connections as well?

I will have a go at taking the plugs off the back of the NIT, is this a likely area for dry connections?

Any comments welcome.

Cheers, Andy
 
CatmanV2

CatmanV2

Member
Messages
48,859
I'll be 100% honest: As an owner for precisely 15 days, I am hardly an expert ;) However with a not inconsiderable experience with computer and CD drives, I'd suggest that the the plugs are very unlikely to be the issues. I doubt the sat nav *data* and the CD audio are sent across the same circuit. I'd expect and combination of the audio out with some kind of data connection across the canbus.

I'd expect the dry joints (I don't really mean 'dry' I mean broken) to be on the circuit boards. :( Having said that, trying the plugs can't hurt. I dout a cleaning CD would either.

C
 
A

Andy in Nottingham

New Member
Messages
9
Well, if we are being honest 15 days makes you about 5 days more experienced than me.

Thanks for the advice, I'll give the low tech approach ago and pray:)

Cheers, Andy
 
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