All, I have acquired a used KX3 (serial number between 4000 and 5000, uC firmware 0.150, dsp firmware 01.21) and I am checking it out. The problem I have encountered is no RX audio:
1. The AF/RF-SQL knob does not change either RF or AF gain. When I TAP the knob I momentarily see 1 in the OFS/B window then returns to VFO B. Rotating the knob does nothing. A second tap shows RF --58 momentarily and then returns to VFO B, 2. WIth the MODE set to USB and tuning to 14074 (lots of loud FT8 stations on this freq) I see S meter action. 3. When I send CW I hear a side tone from the headphone and the speaker when the headphone is unplugged. 4. When I HOLD the AF/RF-SQL knob and go to MON the OFS/B window show 5 and rotating the AF/RF-SQL knob does not change the number. 5. The PBT I/II knob appears to function properly. 6. With MODE set to USB rotating the Keyer/Mic knob does not produce any indication of a change in MIC gain in the OFS/B window. When in the CW mode rotating the know does not change keyer speed (remains at 18 WPM), 7. When I HOLD the KEYER/MIC knob to adjust power 5.0W is displayed in the OFS/B window. However rotating the knob does not change the power level. 8. The KX3 transmits CW properly at 5 W output. 9. I do not yet have a USB/Serial interface to possibly reload firmware. I'm looking for suggestions for next troubleshooting steps. Robie - AJ4F ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
