hi I have an error code 91-455 on a dsr-85p followinmg a tape jam. I have tried the maintenance menu and get the following result. Top end sensor enabled causes the cassette compartment to go down and put up the flap. Nothing will reset the cassette compartment apart from manually. The error code seems to mean no communication between servo and cpu. Maybe eveything has to be wound back to starting positions. Then the cpu might recognise a starting point. Any other ideas please. Thanks Peter

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