I had not realized that I was at the end of a tape and kept hitting fast forward and play to see what else was on the tape. The tape got to the end and automatically started to rewind and I hit play again and the tape got all jammed and wouldn't eject. I opened the VCR and extricated the tape but now it won't work. Tapes won't go in unless I manually push them, won't play and won't eject. Please help.