I recently purchased a used BC700A scanner. The scan functions do not seem to work. If I scan say WX, it never breaks squelch. The weird thing is, if I SEARCH the band, squelch breaks easily on the channels I am interested in. I contacted Uniden about a service manual, or a factory reset procedure. The very nice gal on the service desk said they had no manuals, and she directed me to this site. I already have the owners manual for the BC700a, but am looking for a service manual or adjustment info / tips that might correct this issue. Thanks for reading. Bill.