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I own a Sony DCR-TRV330E digital camcorder, which was purchased approximately 7 years ago. when I began experiencing a strange issue, related to dubbing a tape on a VCR. During the dubbing procedure, the image displayed on the TV screen appears to be just fine, however, after it's done, and I try to play the target cassette on the VCR, the resulted image appears to be in black & white. This phenomena repeats itself on various types of VCR devices and cassettes. I'm using the standard A/V output connecter to hook the camcorder to the VCR. I have no other issues with the camcorder, the VCR, or the TV.

Please help me to figure out the cause of this problem and how to solve it.