I've been noticing lately that my radio reception has been a bit carp. Well, I've just discovered what's causing it.
As it's dark a lot these days the lights have been on. I've recently installed LED stop/tail lamps and lo and behold when they're on, the radio reception is affected. It gets worse when the brake pedal is pressed and disappears completely when the lights are turned off.
Darnit, this has now started happening to me as well. Any fix for this or do I have to lump it/ go back to the standard lamps?
10th Mar 2015 12:20 pm
mcsimmo
Member Since: 08 Aug 2011
Location: North of the south
Posts: 1795
You're not alone, I have had this problem since changing to LEDs, and have posted it before. I can live with the problem when I see how bright the lights are.Man with no D3 anymore, but cant leave the forum....how sad.
10th Mar 2015 12:29 pm
DiscoZack
Member Since: 12 Feb 2015
Location: Cambridge
Posts: 173
I don't have LED lights on my D3, so I'm not familiars with the design of the lighting circuit.
Under normal circumstances LEDs on there own should no cause any electrical disturbance.
Do these light have an external controller/ECU?
Do the LEDs have some form of modulated power source? (this would allow the brightness to be adjusted)
Is the D4 wiring loom screened in anyway?
Maybe someone more knowledgeable can explain the LED system!Cheers, Chris in Cambridge
D3 56 TDV6 Metropolis LE
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Yeh, really strange. Guess I'll just have to give up on braking then. The D3 will go through most things...
Actually that is a good point, the reception is ok when the LEDs are on as normal lighting, it's audibly noticeable that when the brake pedal is pressed, the reception drops out. Incredible to think the circuits are linked unless there's enough interference being thrown back through the GND channel.
Last edited by Wil on 10th Mar 2015 1:38 pm. Edited 1 time in total
10th Mar 2015 12:41 pm
will247
Member Since: 05 Jan 2013
Location: York
Posts: 709
They are all linked at the battery!! 26 and on the 4th LR..
Series 2a 1963 88'' 2.25 Derv as original with Galv chassis
Disco 1 1996 V8 on LPG (sold now)
Disco 3 2005 TDV6 S (sold now)
Disco 4 MY15 XS Commercial
just to close this off, I decided to put the old filament lamps back in the rear brake lights. Now the radio doesn't drop out every time I brake!
Ah well, that was a failed experiment!
2nd Apr 2015 11:23 am
Nodge68
Member Since: 05 Sep 2014
Location: Newquay
Posts: 1014
DiscoZack wrote:
I don't have LED lights on my D3, so I'm not familiars with the design of the lighting circuit.
Under normal circumstances LEDs on there own should no cause any electrical disturbance.
Do these light have an external controller/ECU?
Do the LEDs have some form of modulated power source? (this would allow the brightness to be adjusted)
Is the D4 wiring loom screened in anyway?
Maybe someone more knowledgeable can explain the LED system!
LED's create different load characteristics on the FETs. I suspect this is causing a rapid ossification of the junction. Putting in a resistive load in circuit, just like that used for the indicator, may well cure your interference.Freelander SE 2005 Auto.
D3 TDV6. Gone.
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