The D8443 was my first box.. since i got it, i managed to put my hands on 4 other boxes for a total of 30$ spent. I repaired all the cassette decks but i still have a problem with my magnavox. The mecanism of the deck is mint and everything rolls but there is a problem. When i put the TAPE ON option, the motor tuns for about 1 sec and stops.. the connection fails and i dont know here to look.