[Elecraft] Aux AF Jack

[Bill Johnson]

You could always send it in and have Elecraft repair it to avoid further “sparking” J

 

 

73,

 

Bill

K9YEQ

 

From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Jim Giercyk
Sent: Monday, February 09, 2009 10:43 AM
To: elecraft at mailman.qth.net
Subject: [Elecraft] Aux AF Jack

 

Hello all,

I accidentally plugged my internal battery into the AUX AF jack instead of the AUX +12 jack.  You can imagine what happened.  I fried the firmware, which was okay because it needed to be replaced anyway.  Now that the new firmware is in, the receiver is deaf.  I traced that problem to U11 on the RF Board (Detector).  There is no signal going to the BFO, and pin 6 is 'microphonic'.  The signal from the IF Amp/Filter seems to be fine, and all of the DC voltages on the pins of the NE602 are to spec.  

I do not have much experience repairing my K2.  Are there any 'gotchas' I should know about with regard to the detector/bfo interface?  I only want to take the thing apart once if I can help it.....they don't call me sparky for nothin'.

Thanks,

Jim

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