[Elecraft] Tuning indicator problem

[W3FPR - Don Wilhelm]

Glenn,

As a quick check on your wiring for the LED indicator, short pin 5 of the 
output connector to ground (pin 4) and you should see the LED turn on.  A 
short at this point will not damage the IC - because it is an open collector 
output.

73,
Don W3FPR

----- Original Message ----- 
From: "Glenn Maclean" <wa7spy at comcast.net>
To: <elecraft at mailman.qth.net>
Sent: Monday, November 01, 2004 9:40 PM
Subject: [Elecraft] Tuning indicator problem


> Hi Guys,
> I put my tuning indicator kit together this weekend that Tom N0SS was 
> selling. Tom you did an outstanding job packaging the kit. I soldered the 
> SMD components on the board per the PDF file that Tom provided on his web 
> site. My tuning indicator does not work. I have 5 volts on pins 1 and 8 on 
> the FSK chip. I have tripled cheked all the connections and the components 
> on the circuit board. Every thing looks good with my high power magnifying 
> glass. I am using 500 hz side tone. When I turn the trim pot on the SMD 
> board clockwise or counter clockwis the 10th LED does not light up. I have 
> turned it more than 5 turns both directions. I have the K2 tuned to the 
> birdie at 4.0000 on the 80 meter band.
>
> Can anyone point me in the right direction for further trouble shooting?
> Thanks,
> Glenn WA7SPY
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