Cris,

In that case, you have firmware 2.04R which locks the sidetone source at U8-4. Is your K2 Serial number below 3000?  If so you must do the sidetone source wiring changes as shown in the KIO2 or KPA100 manual.

If SN3000 or above, you have a problem that needs to be found.  Do you have an oscilloscope to aid in troubleshooting?

73,
Don W3FPR

On 7/26/2020 12:18 PM, Christophe aufacf wrote:
hello sorry for the delay,
I didn't have the time, look at the lack of time

stl regler 030, I press on display I have U8-4 but impossible to switch to U8-25

thank you for your opinion

thank you again for your precious help

73 , Cris F8ACF

Le lun. 20 juil. 2020 à 22:56, Don Wilhelm <[email protected]> a écrit :
Christophe,

You likely do not have the proper sidetone source selected.
Go to the STL menu and set the parameter to about 30 - then tap DISPLAY
to toggle between U6-25 and U8-4.  Stop when you hear sidetone and exit
the menu.

73,
Don W3FPR

On 7/20/2020 3:50 PM, Christophe aufacf wrote:
Good morning all ,

I repaired my K2 with Don recently the problem now

I realized that I can handle in Cw but I no longer have at the same
time the sound of the CW of course in emission

the STL 030 menu, whatever the level, nothing changes, any idea?




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