[urq] radio problem

[Patrick Carlier]

It's not unusual that a radio is powered directly from the battery .
Most of the time it's done to reduce or eliminate alternator noise .
If that's the case , I suspect there's a fuse somewhere in the wire
most likely  close to the battery .

Btw , the cure for alternator noise is not to change the wiring or add 
filters and
capacitors , but to check and fix the rectifier diodes in the alternator .
Corroded ground connectons are also notorious for noise in the radio .

Pat






----- Original Message ----- 
From: "Keith Lloyd" <spotatashleys at hotmail.com>
To: <urq at audifans.com>
Sent: Sunday, May 30, 2010 10:26 PM
Subject: [urq] radio problem


> OK, I've done somethng silly and now can't see the wood for the trees.
> My Blaupunkt CD player was playing up and so I decided to change it for a 
> Sony. Silly me plugged in to the sony via the bunch of leads already 
> attached to it. It worked briefly and then nothing. The unit still works 
> because if I find a fresh permanet live (cigarette lighter) and a 
> suitablle earth it fires up. However, the original live feed is now dead. 
> Why I don't know. Does anyone know where the red wires come from? There 
> are no blown fuses in the fusebox. Does the permanent live for the radio 
> come from somewhere else with it's own fuse? If so where?
> I'm really puzzled and very tired so not thinking straight, I have not 
> noticed anything else not working which would be a clue.
> Any assistance gratefully recieved as usual.
> Many thanks
>
> Keith
>
> '87 WR
>
> p.s. just to confirm - I only need 4 wires to the radio right? permanent 
> live, earth, illumination and feed to electric aerial.
> The autocheck has it's own separate speaker on my car so no feed to NF on 
> radio.
> Cheers
>
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