[Elecraft] Fwd: Lost Sidetone and Spotting Tone

Mon Mar 8 07:49:00 2004

Correction: I do have sidetone with the basic K2, just not with the KPA100.

>Date: Sun, 07 Mar 2004 19:31:35 -0700
>To: [email protected]
>From: "D.R. Weiss KIØRP" <[email protected]>
>Subject: Lost Sidetone and Spotting Tone
>
>I just completed and installed the KPA100 in my K2.  I did not yet do the=

>Control board modifications for computer control.  Everything checks out 
>OK except I have no sidetone or spotting tone, either with the KPA100 or 
>with the basic K2.  (I had them in the basic K2 before starting this 
>project.)  I tried changing the sidetone source, via the menu, back and 
>forth between U6 pin 25 and U8 pin 4, without success.
>
>The only changes I made to the basic K2, as part of building the KPA100, 
>were--
>*remove pin 4 of P4 on the K2 Control board (p. 21 of the KPA100=
 instructions)
>*upgrade main processor firmware to ver. 2.03D (furnished with the KPA100)
>*upgrade I/O firmware to ver. 1.07 (furnished with the KPA100)
>*install Aux RF (P6) and Aux 12V (P3) connectors on the RF board (p. 42 of=

>instructions)
>
>My questions: Are the Control board modifications REQUIRED in order to 
>have sidetone, or does anyone know of any other likely sources of this=
 problem?
>
>Thanks,
>Dave Weiss KI0RP
>K2 #2249