[Elecraft] End of phase 1 3080 install - another deaf KX1
n2htt at optonline.net
n2htt at optonline.net
Sat Apr 22 13:15:40 EDT 2006
I finished the mods to the board and went through the receiver alignment on 20 and 40 to discover that although I was getting some signal, it was way way down from before.
After reviewing the email thread on the other deaf KX1, I checked the resistance to ground from both sides of L6 and found it was shorted.
All the joints in the area looked good, and no bridges could be seen, so I started to look at the top of the board and noticed that T2 sits right on top of one on the ends of L6. I lifted T2 off the board slightly so there was no contact, and checked the resistance again - it was good. About 1000 ohms with R1 in the minimum position, and 1.5 - 2.5 ohms at the max, as Ron decribed in the prior email.
Connecting the KX1 to a noise source in this condition gave a nice loud noise signal.
How should I go about fixing this? I wouldn't think the enameled wire or the core would present an opportunity for a short. The pad of L6 is not near any tinned wire coming from T2.
Should I put some insulation there? A bit of tape maybe?
Thanks
Mike N2HTT
KX1 099, currently in surgery
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