I try to record and the camcorder blanks out and shows a pix of the camera and a battery and says "communication error" and then shuts off. I have made sure it is charged and I've also tried to take the battery off and put it back on. Any help would be great.
Just found a workaround for the "cheap battery" problem. The problem is that there is some circuitry in the more expensive JVC batteries that the generics don't have. When this isn't detected by the camcorder, it won't function. It's a neat trick to make you buy the proprietary battery. Well, the generic battery I have has a plug in the back of it so you can charge it with the JVC factory supplied charger. There was also a jumper cord supplied with the camcorder. Plug this in the back of your cheap battery, plug the other end into your DC port on your camera, and voila! You're in business. Downsides are that you have a short cord between the battery and camcorder and the battery indicator won't work so you'll need a spare.
Try using the orijinal JVC battery, sometimes compatible batteries cause this kind of problems.
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I have the same problem on my GRD340 except it's with the original JVC battery which has worked for 18months or more. I bought a new battery as well and still have the problem
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