[Elecraft] Broke my K2 :(
Victor Rosenthal 4X6GP
k2vco.vic at gmail.com
Wed Jul 7 15:29:49 EDT 2021
Remember PTTL?
Poorly Tinned Toroid Leads.
Look for them.
73,
Victor, 4X6GP
Rehovot, Israel
CWops #5
Formerly K2VCO
https://www.qsl.net/k2vco/
On 07/07/2021 22:19, jerry wrote:
> So I went out this morning to replace the CW filters with the upgrade
> kit. Unsoldered the 5 crystals. Removed one of them - whups, it's
> got the "S"! That means that the upgraded crystals are already
> installed. I thought there was no "S" - it was hard to read with
> them installed.
>
> So I resoldered the crystals. Being in there, I gave the RF board a
> scrub with IPA. Back to the shack....
>
> ...Audio is way down. No transmit, not on CW nor on phone.
>
> I hauled it back to the bench, got out a visor magnifier and a
> powerful flashlight, and looked over the whole board for solder
> splashes and cold joints. Didn't find any splashes. Found & touched
> up a few iffy joints. Found one joint with no solder at all - just
> the component lead sticking up through the hole with air all around
> it. Soldered that one.
>
> Back to the shack. Still no joy. Guess I gotta troubleshoot it.
>
> Hauled the scope to the operating position. Brought up the
> schematic. Ready to start troubleshooting. Punched the power button
> and....
>
> ....Everything works! Nice loud audio. Good transmit RF. Go
> figure...
>
> - Jerry KF6VB
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