Date   : Sun, 13 Nov 2005 22:39:26 +0000
From   : Jules Richardson <julesrichardsonuk@...>
Subject: Re: RF Modulator Interference

Mike Tomlinson wrote:
> In article <d1c1b84c0511130844r1dd83d3dp250bd32178d2271c@...>
> , Paul J <peterbilt@...> writes
> 
> 
>>   It is an issue 4 board, seems to be much worse switching it on 
>>   Today. The signal drifts out of tune every 10 seconds or so, with 
>>   or without sound.
> 
> 
> The modulator's failed.  Change it out.

Did anyone fiddle with the adjustment cores for coils in the modulator? 
(I think one's accessible through the shielding, the others need the lid 
popping). Just wondered if someone tried that to see if it would cure 
the fault and then adjusted things to far and broke the core.

In other words, if so you might now have a broken modulator but the 
original noise problem's still there and will just come back again with 
a new modulator...

cheers

Jules