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Re: [RFI] Whirlpool 465 Oven Door Latch Solenoid RFI

To: "rfi@contesting.com" <rfi@contesting.com>
Subject: Re: [RFI] Whirlpool 465 Oven Door Latch Solenoid RFI
From: "Jim Brown" <jim@audiosystemsgroup.com>
Date: Mon, 11 Jan 2010 09:22:58 -0800
List-post: <rfi@contesting.com">mailto:rfi@contesting.com>
On Sun, 10 Jan 2010 17:36:03 -0600, Ward Silver wrote:

>So I am pretty sure the RF is 
>getting into the controller by multiple paths, not just the relay driver.

That's a good approach. The point I'm making is that "the pin 1 problem." 
power supply coupling, and magnetic and electromagnetic coupling to wiring 
can add input ports that aren't shown on the schematic. :)  And while 
we're talking "pin 1," consider a "pin 1 -like" problem with the green 
wire from the AC line, which SHOULD be going FIRST to the chassis of the 
machine, not to the circuit board(s) that then goes to the chassis.   


Jim K9YC

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