What are the negative effects (if any) for leaving a prosumer comcorder powered 24hrs a day? I have a use case where I need to leave a pro-sumer camcorder, (Let's say a Canon XA10) powered 24 hours a day indefinitely. The HDMI out of the camera would be used for monitoring 24 hours a day, but no recording would be done, and the LCD and viewfinder can stay turned off.  Additionally, other mechanical functions like auto focus can be disabled.

Are there any negative effects on the camera to leaving it on and powered for extended periods of time?
There could be some consequences to using the Canon XA10 24/7, although I don't think they are very likely to happen.

I can think of two things that might go wrong:


Even tough the LCD is off, the CMOS sensor inside is still working. This can generate significant heat and cause an overheat. However, most cameras have a built in protection that shuts them down in case of overheating, so it's not a real risk.
Depending on what you will be shooting it is possible that the sun will shine directly through the lens on the sensor for a long time. There's some debate on this on the Photo.SE site, but some think this can damage your sensor.