I have an X5105, FW Version 3.0. The latest chronic issue that has worsened with use is intermittent transmit in CW Mode. Simply put, when the unit is placed into CW Mode and a key (paddle or SK) is inserted into the jack, the unit will initially transmit fine and eventually stop. The relay does engage and the TR LED illuminates with key down, but no power out. When the unit is shutdown for about 15 minutes, it returns to transmitting for about 10 minutes, than stops. Very annoying issue.
I have checked the following items in an attempt to triage and now stumped. This issue occurs:
- with keying contacts measuring infinity ohms (key up) and a solid 0 ohms (key down).
- with antenna jack terminated into a dummy load or tuned antenna.
- with ATU ON or OFF.
- at 0.1 to 5 W output setting (Po).
- with internal battery fully charged or low.
- with external battery power.
- with CHARGING ON or OFF.
- with or without ACC jack PTT used.
- with or without manual use of PTT button.
- with or without microphone connected.
- independent of QSK Time delay selected.
- independent of key type (MAN, AUTO-L, AUTO-R).
Has anyone seen this issue? Have I missed anything? Any suggestions from the group? Thanks.
Best 73, Lou N2JPR
Lou N2JPR