Yes, this is a well known problem with this camcorder. If it is still under warranty, don't attempt to fix it yourself, send it back to JVC and have them repair it.
If your camcorder is not under warranty, you are free to do what you like with it but keep in the back of your mind that you may have to purchase another!
With that said, here are a few suggestions on how to fix the issue, but nothing solid: (disconnect the power before trying any of this)
The "Take your camcorder apart" fix:
Remove every single tiny little screw on the exterior case. Be warned there are at least 5 different types of screws... you will want to remember what went where. You will need a small phillips screw driver. All the screws on the inside of the viewer and also there is one inside the S-Video flap if yours comes equipped. There is also a screw on the top on the piece in front of the eye viewer. Probably 18 screws or so to remove.
Once all the screws are removed, carefully, and I mean carefully, seperate the two halves of the outer casing...and the camera comes apart. Inside there are a few connectors that connect the two halves. The one closest to the rear (thumb switch), if unplugged will do a "hard reset". Leave unplugged for about 5 minutes. Be careful to separate the halves gently as there are a few wires connecting one half to the other, and a couple connecting the lens parts to the main board (I had pulled out one of these, but manged to get it back in). There are a few tabs and parts that kinda snap in, but it wasn't hard to figure out.
Clean the condensation sensor fix:
If you open the tape compartment and look inside to the very back left of the camera you will see a silver piece (drive motor) with orange plastic piece on it. On the right side of that you will see a black square (condensation sensor). Disconnect power and take a long q-tip dipped in windex and gently wipe the sensor. You will get some black goop on the q-tip. After you gently clean it well, dry it with compressed air, or allow to airdry for approx. 10 min. Reconnect power...message should be gone.
Read this article from a JVC owner who tried all of the above.
Last update: 06:50 PM Saturday, April 7, 2007