It was found to be a faulty KDSP2 module. Can anyone help me with
troubleshooting? The battery was checked OK, and there is no visible issue
anywhere. Any suggestions?
Many thanks,
Chris KM1B
On Fri, Jul 29, 2022 at 2:47 PM Don Wilhelm wrote:
> Chris,
>
> Do you still have sidetone? If
After following Don's suggestions, the issue was found to be from the
failed KDSP2 module. I have replaced the KDSP2 with my extra KAF2 module
and got the audio back. Now, I have to troubleshoot the KDSP2 module. As
I am getting the audio on and off intermittently with the KDSP2, I will
check
Chris,
Do you still have sidetone? If so Control Board U9 is still active, so
check the MUTE signal and CB Q6 and Q7 operation.
If you have the KDSP2 installed, remove it and install 2 wire jumpers
one between CB J1 pin 1 and CB J2 pin 1. The second jumper between CB
J1 pin 2 and CB J2
A quick update on this. George, W1JHR, suggested checking the faulty
headphone jack. It could be an easy fix, but my case is different because
I don't get audio on the headphone jack either. The issue seems to be
somewhere on the AF circuit.
I get the audio back if I leave the radio turned off
Hello,
I have two K2/100, and one of them developed an issue last night. It
suddenly lost audio. The S-meter is working, and it transmits fine but no
receive audio. When I leave it long enough, the audio comes back
occasionally, then goes off. I get the same results from the headphones,
so
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