Question about Sony Handycam DCR-TRV120BT Digital Camcorder

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Head-Cleaning Tape not Working

I'm having a rather odd problem with my Sony DCR TRV-120 camcorder. When I insert the head-cleaning tape (wet kind with the brushes) it gives me the C:31:22 diagnostic message. But when I insert a brand new tape in there's no problem and I can record stuff but it will playback with some distortion which seems to be caused by dirty heads. The diagnostic describes this as a condensation problem somewhere in the camera. I wonder if the cleaning solution that I've applied to the brush of the head-cleaning tape is causing this. Is there another way that I can clean the heads with Q-Tips or some other household item without damaging the heads? Does the C:31:22 diagnostic come solely from the current condition of the head? Or could it be any number of things inside the camera?

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Another post here noted yet another discussion about giving the camera a whack on the side. This is not a good idea but since it fixed it points out that it was unlikely it was something the tape cleaner would fix. This likely means a trip to the repair depot.

Posted on Sep 14, 2005

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This is most likely caused by an oxidized, damaged or misaligned video drum and can usually be repaired fairly inexpensively. However, it's not a user serviceable problem and will need to be repaired by a qualified service technician.


My name is Rick and I'm a professional repair technician with over 20 years in the business and have repaired many of these. I'm semi retired and work from home with little overhead so I can keep repair costs low. If you decide to have the camera repaired, please click HERE for a directory listing that suits your needs.


If this response has been of any help to you, please be sure and give a positive vote for me on FixYa.com .

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