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Vintage Television and Video Vintage television and video equipment, programmes, VCRs etc. |
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17th Nov 2018, 11:34 pm | #1 |
Retired Dormant Member
Join Date: Nov 2018
Location: Madrid, Spain
Posts: 1
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Audio problem with 1984 JVC GR-C1
Hi.
I purchased, not too long ago, an old JVC GR-C1 (the famous Marty McFly camera from Back to the Future). When it arrived, I tested it, and it was working great. I made a couple of recordings, and everything was fine. The battery was dead, but the camera came with an original JVC wall plug adapter, and, as I said, was working and recording great. A couple of weeks ago, I had an 80s party at my house, and I wanted to record some videos with it. When I checked the videos, there was no sound. I have the AV output cable, so I connected it to the TV, and my old recordings had sound, but these new recordings from the party had no sound at all. I also tested not recording into a tape, but just putting the camera in record mode, so I can see the picture and hear the audio in real time from the TV thanks to the AV cable, and no audio can be heard. A friend of mine has the same camera. I tried his microphone with my camera, and I have no sound. If I connect my microphone in his camera, it works. So the problem is not the microphone. As I'm kind of good in electronics, I disassembled the camera so to get to the audio board, to check if there was any blown fuse or capacitor. I can't see anything strange on the board. There are no fuses, but the capacitors look ok to me, they're not fat or blown. Anyone had a similar problem? Any solution? Thanks a lot! |
18th Nov 2018, 4:56 pm | #2 |
Heptode
Join Date: Apr 2008
Location: Eastbourne, East Sussex, UK.
Posts: 671
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Re: Audio problem with 1984 JVC GR-C1
I'm guessing the microphone is an electret type which will need some power to it to make the preamplifier within work. Is it receiving a voltage from the camera? If you connect a dynamic mic which doesn't need a voltage to power it does it work then?
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