Dan,
I just arrived home from Thanksgiving family stuff.
Did you have the front panel board isolated from the other boards when
you made those resistance measurements?
If not, that is sufficient reason for the low resistances.
73,
Don W3FPR
On 11/26/2017 6:01 PM, Dan, K7DJK via Elecraft wrote:
Now that the busyness of the Thanksgiving holiday is over, I was able to get
back to the K2.
First of all, thank you all for your help and suggestions.
I first, for both the Front Panel and the Control Board, verified that all the
proper components were installed and in their proper orientation. No problems
found here.
I then went and reflowed all of the solder joints (well, all of those I could
actually access).
After reassembling the radio, I turned it on and got past the INFO 201. Good!
Reflowing the solder must have fixed something somewhere.
Now I have the INFO 080 message.
Referring to Appendix E of the K2 manual, I quickly found the problem to be a
bad solder connection on U1’s (RF board) 4 MHz resonator (RF-Z5).. Easily
fixed that and checked all other solder connections of the RF board.
Applied power. Ah, the wonderful sound of clicking relays!
Looked at the display, and saw...gibberish.
Decided to reset the radio again (4+5+6 then power-on).
Got the INFO 201, followed quickly by ELECrAFt, followed then by 7100.00c.
All tests and functions as outlined in Alignment and Test, Part 1, worked as
expected. Happy to see that!
Something still bugs me though. After reflowing the solder connections, I
re-measured the resistance checks (per pg. 29 of the User Manual). I only list
below the measurements in question:
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