Steve,
As you said is only started after disassembling the front panel, I would
suggest looking for some other cause than the button itself. Check the
soldering of the pushbutton well. If you do disassemble the board from
the front panel again, you might try soldering the pushbutton from the
top - the leads do not stick very far through the holes and it may not
have been heated adequately in the initial soldering process.
Pushbutton failures are rare. They are sealed, so I do not think the
cleaner spray would be effective, but it may be worth a try. If you
remove the left side panel, you can get to the edge of the pushbutton
without disassembling anything else.
The microprocessor interprets the tap/hold selection, not the pushbutton
itself - of course the contacts could be bouncing and causing the
problem, but a bad solder connection might also behave that way too.
Steve Kallal wrote:
I just did the AF-Gain-Control Mod on my older K2 sn 2289. After
reassembly, the gray BAND+ is starting to fail. It is used a lot for
KDSP2 programming and does always recognize a push and hold function
now. It often interprets it as a momentary push.
I could and should just order the new part from Elecraft. I wonder if
some contact cleaner spray would help? I have some Radio Shack spray
cleaner already. I would like to hear from others on this reflector
first. It is odd that the failure started just after completely
removing the front panel and reassembling it.
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