Sylvania Zv Sylvania ZV-420SL8 DVD Recorder And 4-Head Hi-Fi VCR Combo - ZV420SL8 I Keep Getting An Error E4 54037380?

Sylvania ZV-420SL8 DVD Recorder and 4-Head Hi-Fi VCR Combo - ZV420SL8 I keep getting an error e4 54037380? - sylvania zv

Does anyone know this book and what does the error code it?