[Elecraft] KX3 Won't turn on

[Raymond DiGiglio]

When I apply power to my KX3, the LCD lights up but stays blank. The radio
and all controls are unresponsive. For awhile it would do this and then
respond within a minute and work normally but now it quit responding. Any
idea which circuits I should check for failure. The manual doesn't explain
the start up process in any detail to know where to start checking.
Thanks, Ray