This TV has always worked GREAT !!! Then last night - BLACK. No picture no sound. I can turn it on and off and the little green light on top flashes slow but nothing happens and the back of the TV is not hot at all.
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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 your light is green it means that your TV is turning on. Or else you would have a flashing light. So if the TV is no but you are not getting a picture it means that one of your Zustain boards is bad. Their are two on your TV one on th eleft and one on the right. You can check to be sure by checking if there is power from the power supply to the Zustain boards. If their is then either one or both are bad. You can check the Fuses on the Zustain board if one is bad then that is your BAD one. Just replacing the fuse is not going to fix it you have to actually replace the board. If the fuses are good your boards can still be bad you just have to figure out which one. If all else fails you can always replace both boards. To order parts you have to get the part numbers from the actual part. you can get parts from www.interliquidparts.com
Check and replace damaged component/s at its horizontal scan output section circuit. Check the LOT (Line Output Transformer) too for damage. Replace the horizontal scan output transistor. Check the input voltage to LOT. If the voltage is absent check the feeder resistor; if any. If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ Type in this key phrase " my service table today " in the search box at the top right of the the home page, to get gathered some pages which has the details of practical experiences of the author of that site. The search result might display about 20 Nos of related posts. Press the "All posts" at the bottom of the list, then you can select them one by one.
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