A prior owner pried open the cassette carriage when the load/unload/eject belt broke to get the tape out, which bent the carriage. I realigned the carriage and replaced the load/unload/eject belt and idler drive belt. The unit now loads, unloads, and ejects, but when I record a tape, it plays back with snow. I believe this may be caused by excessive back tension because the mystery belt/tires are missing. Any help would be appreciated.