Originally Posted by Barry_R
If it runs for 10 years without any trouble I will be happy. I run the backlight at 30% most times so that should extend it's life further. What about the pixels themselves? There is no mention of their lifespan is there?
Yea we are a bit crazy... There is always someone home so the TV gets turned on in the morning and gets watched off and on throughout the day.
I have always believed that it is better to leave it running than to shut it off and on 3 or 4 times a day.
No you aren't crazy, we are. Our TV is on for 24/7, except when we're on vacation. I recently replaced our, still working, Sony 27" direct view TV with a LG 32LC2D LCD flat panel display. The backlight is rated for 60,000 hours. For our use, it should be good for 8 1/3 years. By that time we should have the next revolution is display technology (4320p or holographic
), and it will get replaced.
The electronics may be using parts, and designs, made in the last 5 years, but the power supply designs still go back to the 70' or 80's, at best (made as cheap as possible). The biggest problems with turning the set on and off is that each time it's turned on, there is a power supply surge, which is more hazardous to the equipment health & life than anything else (except for running it in a hot room or equipment rack).
In testing that we did on spacecraft electronics (required 15 year life time at 24/7 operation) the biggest causes of test failures that we ever had was either bad parts or turning the equipment on and off. Whenever possible, our test gear is on 24/7 for maximum life and reduced calibration needs.
BTW, our TV is the only electronics that is on 24/7. Our surround sound system, PJ, DVD player, etc. is only turned on when we are going to use it. Then it's left on until we go to bed, the TV is turn off when we use the PJ (normally for 4 to 8 hours). None of my equipment is turned on for only an hour (except for the notebook computers, and those don't last for more than 5 years - my last one failed in less than 1.5 years).
Yes, turning the TV off when not in use is environmentally friendly (less electricity use). However, my new LCD display uses about half the power that my old CRT set did. So I just cut my electricity use (for that appliance) by 50%.
I agree with your latest post, many failures are fixable, if you want to go to the trouble. I had one TV which had it's picture tube fail (a set made by Thompson - sold by CC). The cost of the replacement was higher than the cost of a new set.