My uncle's tv is about 4 years old. on power up , everything is working fine. about 5-7 minutes later after tv warms up, starts to cycle through demo mode on screen. I managed to turn if off through menu and even take batteries out of remote, yet demo mode still re-appeared. I saw other problems on this page mention remote sensor in the TV and microprossor. anyone see this problem b4. Should I try the remote sensor assembly on the TV first. Don't want to start throwing parts at it until I can either rule out or prove something is at fault. Anyone know if I can just disconnect the remote sensor inside to see if my screen demo goes away ?whithout causing harm to other components inside ?
many thanks in advance,
Some friends of ours has this problem also. I've been trying to find a solution over the internet for a few hours now. I came across one page that said to hold the menu button on the front of the tv in for 20 seconds and that should fix it. guess we'll see.
I have this same problem, just started 2 days ago. Changed batteries in remote and everything - driving me nuts- now i cannot change channel or adjust volume! I powered off TV, took batteries out of remote, turned back on and now still stuck. I think we bought junk!
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I have two RCA HD52W59 TV's. I have had one for 3 years and one 4 years. The one I have had for 4 years is giving me the problem. Last week the tv turned off while watching it. It wouldnt come right back on. 10 minutes later we tried and it worked fine. the other night the kids were watching and it turned off and smelled like something burning. I tried turning it right back on and got no power at all. I tried to turn it on two days later and it made a buzzing noise and the green light went out. Never did get a picture, no powering up on the screen. Any ideas? Don't want to spend alot of money. Really loved the TV hope it isnt junk now. Better yet I hope the same thing doesnt happen to the other one I have.
It might be that your fridge went into something called 'demo mode' that shuts the compressor down so as not to waste electricity on the showroom floor. The freezer and fridge sides both start to warm up, but the temperatures shown on the outside of the door never change, so you don't know you have a problem until you open the fridge or freezer and find you have a melted mess. My Samsung is 7 years old and we run into this problem frequently when our power is on and off, like just recently with hurricane Ike. Per the Samsung website, the cure for 'demo mode' is to unplug the fridge for 1 minute then plug it back in. They also suggested pressing Power Freeze and Freezer Temp together for 8 seconds until you hear a chime to cancel demo mode. Good luck. I really dislike this machine.
Do you have your TV plugged directly into the wall? You cannot plug into a power strip, it needs its own direct power source. Also, I have heard that there can be electrical problems inside. I have this same model, I love it, picture and sound. I just replaced the bulb for the first time last night. It was a little premature to replace it now but I know what caused it. I bought a new bulb and it works like a gem. If you ever need to change the bulb do it yourself. It takes maybe 2 minutes. The bulb looks like the Flux Copassitor and all you do is remove the door in the back on the side. Unscrew the the 2 screws that hold the bulb in and just pull out. When you put the new one in make sure you do NOT touch the glass on the new lamp. Just slid it in and screw the 2 screws back in and make sure the door is closed and tight. My uncle had a service guy do his and he got raked for 5-$600, The bulb costs about $200. Should last about 5-6 years at a rate of 5-6 hours of TV on time. Hope this helped. If not, sorry, but at least you know how to change the bulb. Good Luck!!!
Its not worth having it looked at. $100.00 for a new 400.00 unit? My unit is doing the same thing. Turn it on and 2 to 5 minutes later it may come on. Change to video 3 4 5 etc it stop again. Only works with a cold start. Something in the unit has failed and is heat related. My original Kenwood 20/20 recevier still works. Must be 40 years old. New products just last 5 to ten years max if your lucky.