When i turn the tv on, the picture flashes to green and then back to it's normal color. it switches between green and normal for about an hour, and then it stops - usually, it remains green! Any suggestions?
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It could be the temp sensor going bad. This sensor sits on top of the
metal housing which the bulb assembly slides into. The bulb assembly
will have a hole on top and this is where the sensor is above. There is a
small blue and white wire that plugs into it. If you pull the wire out
and put a paper clip or wire in the coupling you will basically bypass
the sensor connecting the blue and white wire. If your tv turns on then
that is your problem. Its cheap too. Here were my symptoms..1] Turn tv
on 2] Bulb would light up..(which eliminates the ballast) regular
picture would show up (which eliminates the bulb and color wheel) 3] 30
seconds later tv would shut down with 3 flashing lights. After bypass
the tv turned on as always and hasnt shut down yet. Always un plug tv
first. Get the replacement part to avoid overheating and possible fire
your picture tube is wearing out . there is a way around it it will work for a while .you need to lower the drive for the green . on the board on the neck of the picture tube there are three adjustments marked red , blue, green on the front of the tv turn down the color all the way down . normally you would have a black in white picture but now you have a green and white find the screw adjustment marked green and carefully turn it down untill the picture is black in white and your fixed . adjust color back up .... dont do this repair unless you are confortable working around high voltages a wrong move inside a tv can kill you , this adjusment must be made with power on so you can see the picture as your going ... so this may not be for you . use your own judgement ........Please if this answer helped , please rate this 3 or 4 stars . and keep me in the paid answer department . A 1 or 2 may knock me down into the unpaid ranks. Thanks Cactus Bob .
sounds like your picture tube is going out, if its an old tv it would be best to let it die since its very costly to fix these problems. If its new you better get it looked at. It is a hardware problem, nothing you can do about it.
Chuck the TV - probably
It depends on the repair facilities available where you live.
In big urban areas the cost of staffing a repair shop is such it can cost nearly as much per hour just to look at an item is it does to buy the next one-plus you get all the latest features.