VX-1R on 2 meters jumps to PS (programmed scan) and the display shows 3F3F3F in memory mode. Works ok on VFO but when I go back to memory mode it will scan for a while and then lock up the screen and sometimes I have to remove battery to get it turned off. Have done hard reset twice with no luck. Will I have to send it in or can it be reset in field? Seems to be ok on other bands. I was using with a mag mount ant. with TSHWR in area. Thanks for you help.