Your LCD display says it is in TX mode.
Is it really in transmit mode? Or is it actually in RX and is the indication on the display false?
What happens when you activate the PTT switch?
Perhaps there's something wrong with the PTT swich or related wiring?
The message "dial is locked" is normally only displayed when the tuning pot is turned while transmitting. This is to prevent frequency shifts during transmissions,
73 Allard PE1NWL