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Path: utzoo!linus!philabs!cmcl2!floyd!whuxlb!pyuxll!eisx!npoiv!npois!hogpc!houxm!houxy!stekas
From: stekas@houxy.UUCP
Newsgroups: net.auto
Subject: Re: car radio problem
Message-ID: <140@houxy.UUCP>
Date: Tue, 20-Sep-83 15:30:28 EDT
Article-I.D.: houxy.140
Posted: Tue Sep 20 15:30:28 1983
Date-Received: Wed, 21-Sep-83 06:03:30 EDT
References: <280@bunker.UUCP>
Organization: Bell Labs, Holmdel NJ
Lines: 23

After much painful experience I have become somewhat of
an expert at car radio noise.  Ignition noise pickup is
a common problem which may not always be cured by resistor
wire or plugs. Before spending money and gearing up for
some hard work, check the following:

   1) The connection between the antenna base and chassis. A
      bad ground here is a common problem. After disconnecting
      the antenna from the radio, see that the braid gives a dead
      short to ground.

   2) While you have the antenna disconnected, see if you can
      still hear noise through the radio. If so it's coming in via
      the +12 supply and that's the JVC's fault.

   3) Also disconnect the alternator to make sure its not the cause
      of the noise. I recall when my noise problem magically vanished
      one night, when the headlights dimmed and the engine started
      missing I realized why!

 I hope these types are timely for a few frustrated netters.

                                             Jim