High pitch whine on radio?

Lunarleader · Jun 20th, 2015, 15:11

Hi I have a Volvo s40 and the standard radio is making a horrible high pitch noise. It only happens when I put the radio on, I can hear the music playing and the high pitch noise too! But it doesn't happen when I put a cd in. Any ideas?

morrismen · Jun 20th, 2015, 15:32

Sounds like either an earth problem or an aerial connection issue like its not connected properly. Check the roof aerial too by unscrewing it first and cleaning the connections there. Used to be electrical suppressors you could buy which prevented this sort of problem, but with electronic ignition it shouldn't be a problem these days.

Lunarleader · Jun 20th, 2015, 18:33

Where would I check the earth and I have the automatic aerial on the boot of the car!
Thanks

DXMachina · Jun 21st, 2015, 01:17

Let me guess, you have one of those cheap USB power adapters plugged into your cigarette lighter socket?

They use switch-mode power conversion, and cause oscillations in the car's power which interfere with radio reception (CD, tape playback are less affected as they arent reliant on the sensitive tuning circuit)

Lunarleader · Jun 21st, 2015, 08:49

No not at all! It's the standard radio and I chat work out why it's doing it

DXMachina · Jun 21st, 2015, 10:08

Do you have a phone charger of any sort plugged in ?

Clan · Jun 21st, 2015, 10:25

does the pitch of the tone increase when you rev the engine?

Antz · Jun 21st, 2015, 10:27

That's BBC Radio 2.

Lunarleader · Jun 22nd, 2015, 00:09

Quote:

Originally Posted by DXMachina

Do you have a phone charger of any sort plugged in ?

No nothing plugged in at all

Lunarleader · Jun 22nd, 2015, 00:09

Quote:

Originally Posted by Clan

does the pitch of the tone increase when you rev the engine?

No the pitch stays the same even when the engine is off

Jun 20th, 2015, 15:11	#1
Lunarleader New Member Last Online: Jun 22nd, 2015 07:53 Join Date: Jun 2015 Location: Bridgend	High pitch whine on radio? Hi I have a Volvo s40 and the standard radio is making a horrible high pitch noise. It only happens when I put the radio on, I can hear the music playing and the high pitch noise too! But it doesn't happen when I put a cd in. Any ideas?

Jun 20th, 2015, 15:32	#2
morrismen Senior Member Last Online: May 3rd, 2023 13:02 Join Date: Dec 2003 Location: London	Sounds like either an earth problem or an aerial connection issue like its not connected properly. Check the roof aerial too by unscrewing it first and cleaning the connections there. Used to be electrical suppressors you could buy which prevented this sort of problem, but with electronic ignition it shouldn't be a problem these days. __________________ Volvo V40 1.8 Petrol SE 2003

Jun 21st, 2015, 01:17	#4
DXMachina I ate all your bees Last Online: Sep 1st, 2023 17:00 Join Date: May 2012 Location: Rickmansworth, Herts	Let me guess, you have one of those cheap USB power adapters plugged into your cigarette lighter socket? They use switch-mode power conversion, and cause oscillations in the car's power which interfere with radio reception (CD, tape playback are less affected as they arent reliant on the sensitive tuning circuit) __________________ '98 Saab 9-3 2.3i Conv owner. Former keeper of 1996 Saab 900iS 2.0 conv, 2001 V40 2.0i, 1999 Mondeo TD, 1995 Mondeo TD, 1990 Passat GT16v, 1983 Passat 1.8CL

Jun 21st, 2015, 10:08	#6
DXMachina I ate all your bees Last Online: Sep 1st, 2023 17:00 Join Date: May 2012 Location: Rickmansworth, Herts	Do you have a phone charger of any sort plugged in ? __________________ '98 Saab 9-3 2.3i Conv owner. Former keeper of 1996 Saab 900iS 2.0 conv, 2001 V40 2.0i, 1999 Mondeo TD, 1995 Mondeo TD, 1990 Passat GT16v, 1983 Passat 1.8CL

Jun 21st, 2015, 10:25	#7
Clan Experienced Member Last Online: Today 00:03 Join Date: Jun 2007 Location: L/H side	does the pitch of the tone increase when you rev the engine? __________________ My comments are only based on my opinions and vast experience .

Jun 20th, 2015, 18:33	#3
Lunarleader New Member Last Online: Jun 22nd, 2015 07:53 Join Date: Jun 2015 Location: Bridgend	Where would I check the earth and I have the automatic aerial on the boot of the car! Thanks

Jun 21st, 2015, 08:49	#5
Lunarleader New Member Last Online: Jun 22nd, 2015 07:53 Join Date: Jun 2015 Location: Bridgend	No not at all! It's the standard radio and I chat work out why it's doing it

Jun 21st, 2015, 10:27	#8
Antz No I'm not the redhead Last Online: Nov 25th, 2022 09:49 Join Date: Jun 2009 Location: North Yorkshire Coast	That's BBC Radio 2. __________________ 1988 Volvo 240 GLT T5 Swap a T5 motor into your RWD Volvo:The Guide

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