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Sat-Nav DVD Read Error (Fixed)
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MB
 


Member Since: 14 Sep 2005
Location: Northamptonshire
Posts: 99

England 
Sat-Nav DVD Read Error (Fixed)

So after some years with my Sat-Nav not working, showing (DVD Read Error) Or (No DVD Disk Installed) I took the unit part to investigate further...

I found a adjustment screw that adjusts the gap between the Lens & the Disk !

This screw sets the height of the Lens "Up/Down" in relation to the Disk.

After some "really-fine" tweaking on the screw to get the gap just right so the disk could be read, the Sat-Nav started fully working again Very Happy

I guess over-time the Lens can get knock out of alignment which cause's the error's

I have attached some photos for anyone else who's Sat-Nav isn't working, is may be the fix it needs !





  
Post #20341915th Mar 2019 6:58 pm
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sarumlight
 


Member Since: 06 Nov 2008
Location: Off the Plain
Posts: 1589

United Kingdom 2008 Discovery 3 TDV6 HSE Auto Tonga GreenDiscovery 3

Nice one! I was assuming the mechanism would have to be replaced but I’ll give that a try!
  
Post #20341955th Mar 2019 7:14 pm
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MB
 


Member Since: 14 Sep 2005
Location: Northamptonshire
Posts: 99

England 

If you have the unit powered-up with the disk inserted and the top-cover off, you can fine tweak the screw till it start to read correctly.

You have to find the "Sweet-spot" but you can tell by the sound/movement of the Lens when you have got it just right.
  
Post #20344966th Mar 2019 7:39 pm
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JDB
 


Member Since: 25 Mar 2010
Location: NW Hampshire
Posts: 2485

United Kingdom 2005 Discovery 3 TDV6 HSE Auto Tonga GreenDiscovery 3

Anyone else tried this and further advice?

I read (heard?) somewhere that the "factory" discs were marginally thicker than standard (or after-market) DVD blank discs and this might assist getting a "backup" disc to work?
   
Post #20738926th Aug 2019 6:44 am
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JDB
 


Member Since: 25 Mar 2010
Location: NW Hampshire
Posts: 2485

United Kingdom 2005 Discovery 3 TDV6 HSE Auto Tonga GreenDiscovery 3

MB wrote:
...... you can tell by the sound/movement of the Lens when you have got it just right.


Can you describe more please MB and is there enough room to run it all powered up under the seat?
   
Post #20738936th Aug 2019 6:45 am
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drmickelmass
 


Member Since: 03 Jun 2017
Location: Monmouth
Posts: 1

United Kingdom 2006 Discovery 3 TDV6 SE Auto Rimini RedDiscovery 3

I followed this guide by MB today and it appears to have worked very well. Likewise, I had lived with the 'Disc Inserted is not a Map DVD' type message for a couple of years, but dislike stuff not working in the car.

Removal of the unit is easy, just move passenger seat forward and up to the max, disconnect the 3 cables at the rear of the DVD unit and remove the 4 bolts securing it to the frame. Take indoors and disassemble - 8 or so small screws on the underside. It all comes apart very easily. You can then return the bare unit to the car and plug in the cables again. There is plenty of room for this. The adjustment screw is very small and needs a fine crosshead screwdriver. I couldn't say that I could hear the lens focusing etc. but small adjustments, about 1/8th of a turn clockwise for mine was enough to restore full readability to the SatNav console.

Thanks MB for the advice. I was thinking of replacing the console with a CarPlay modern screen, but having this working and having also found out how to unlock the 4x4 info screen means it's better than when it was new! Cheers Very Happy
  
Post #221228620th Feb 2021 2:21 pm
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ajmacfarlane
 


Member Since: 12 Dec 2016
Location: Maidenhead
Posts: 132

United Kingdom 2005 Discovery 3 TDV6 HSE Auto Adriatic BlueDiscovery 3

@chris1969
  
Post #221229920th Feb 2021 3:28 pm
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