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Question: malfunction

My GV-D1000 has a malfunction. One day, it dindn't recognize a tape, and a message (i don't remember if it was "C:41:00" or "C:21:00") appeard at top right. In this case, according to the manual, the way is to send to the dealer or to local services. After this i disconnected and then reconnected but nothing happenned. Then i pushed the reset button, but the things remained the same.

No matter what tape i put there, it's always the same: no images can be viwed, and the timecode remais at zero, despite i advance or rewind the cassete.
If someone has a suggestion, i'm very grateful.