VTG GE Woodgrain 7-4956B AM FM Alarm Radio Cassette Player. Radio works!

VTG GE Woodgrain 7-4956B AM FM Alarm Radio Cassette Player. Radio works! Tape deck play works, but doesn't have sound. We were able to set the time, but the time doesn't keep time. You tube videos online show how to repair the tape player. Battery backup compartment, looks clean, not corroded.