WHEN THE TV TURNS ON THE GREEN LIGHT BLINKS BUT IT NEVER COMES ON----ALSO NOW THE BULB LIGHTS UP BUT USUALLY TURNS OFF AFTER ABOUT 10 OR 15 SECONDS AFTER THE TV IS TURNED ON. ONCE AGAIN THE LIGHTS BLINK ON AND OFF BUT THE TV NEVER TURNS ON.
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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
If there is no standby light or any blinking LED lights, check the outlet first to make sure you are getting power. If so, then the power supply board in the TV has failed. If you are getting blinks and just no picture or sound, it will be something else depending the sequence of blinks.
If you are getting blinks, I would check the lamp first. This is the most common failure. Look for either a cloud near the stem of the bulb or if it is shattered, replace the lamp.
Did you use an original replacement lamp or an aftermarket replacement? From the price you give, it sounds like an aftermarket lamp, which are notoriously buggy and the problem may be with the lamp. If not, the lamp driver is your next likely culprit. It is also called a lamp power supply or lamp ballast.
DO you have the owners mannel if so read it and see what they would do ,have you removed the lamp and if so how did it look? some lamps only last for 5,000 hrs and others 8,000 hrs If lamp is bad TV will not come on.