[Elecraft] /BANK1 buttons do not work

Thu Dec 5 15:05:00 2002

Ken:

I would look in the area of U3 and check the voltagers around it. Make sure
you don't have a short between pins 6 & 7 of U3 on the front panel board.
Pin 6 is the input for Bank1 (the common for all Bank 1 functions) and 7 is
the input for the SPD RD ( Speed Rd).  I suspectg you might have a solder
bridge between Pins 6 & 7 on U3.

Good Luck

Jim Younce K4ZM
K2  SN 18
----- Original Message -----
From: "Ken Adams" <[email protected]>
To: <[email protected]>
Sent: Thursday, December 05, 2002 1:22 PM
Subject: [Elecraft] /BANK1 buttons do not work

> Gents,
> I just got to the point where the K2 is first powered on and
> some early testing is done.   This is on Page 42 of my manual.  The
> microprocessor initialization completed just fine and the VFO will
> change frequency.   All the buttons on the right side of the front
> panel work fine, but none of the buttons on the left side work.
>
> When I tap the DISPLAY button nothing happens.  I have
> double checked all soldering.  All the resistance checks were FB.
> The only other thing I note is that the when I turn the keyer speed
> control it is either 9 or 50 ... no linearity for anything in between.
>
> I bought this unit at Dayton and have waited until now to
> start the building process (I retired 8 weeks ago!).   The serial
> number is 2738.
>
> Any suggestions?
>
> 73, Ken K5KA
>
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