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Re: tv will not start up
Does the front led flash. if it doesnt then you may have a primary power problem.. the fuse may have blowed,., this ussally means other componets have shorted IF the led flashes then you have a processor shutdown
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Some of these sets if you unplug them---The green power light will blink for about 70 seconds before it stops--this is normal as the receiver unit in this set is booting up. Wait for the light to stop blinking and then the set should turn on. Some of these sets develop a problem where the light never stops blinking--usually the receiver is now bad--very expensive to get fixed.
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There are many protective circuits inside the set that will shut it down if a problem is detected. It sounds like there are intermittant detections of problems and the "restart" temporarily clears the problem. If the unit is no longer under warranty, open up the back with the set unplugged and try reseating all of the boards and connectors. The trip may have jared a few things loose. Update this with the results.
You definitely have a bad lamp. Sony rates the lamp life at between 4000 and 8000 hours. There are 3 things that effect the lamp life, listed in order of importance: 1) number of times the lamp is turned on and off. Every time the lamp is first fired, it takes life off the lamp. Customers I see that turn the TV on in the morning, leave it on all day and then turn it off on the evening can get up to 12000 lamp hours 2) ventilation. Be sure you have at least 6 inches of open space all the way around the set and that the vents are clear of dust and debris. 3) power. If the power is interrupted when the set is on, there cannot be a proper cool down cycle. The fans will run after you turn the set off to properly cool it down, if the power is lost this cannot happen. If your power is unreliable, buy a small UPS to let the set finish a cool down cycle
Occasionally a lamp will faill before the average lamp time due to being defective. from your purchase date it sounds like you got about average lamp time. Be sure to purchase AN ORIGINAL SONY LAMP as a replacement, becuase the aftermarket lamps are bad news, Be sure to rate this solution. Thanks!
Does the timer/stand-by light blink at all? If so, count how many times it does. It will usually be in intervals. If it isn't blinking, and you have nothing on the screen, you might have a problem with the "G" Board, part # A1316499A.
Your set will one day soon not come on at all. theres several capacitors on the PIP board if your set has PIP or the capacitors in the power supply. A good tech should know where to check as this set some say is hard to work on but i quess its like anything you work on for a bit gets easyer. Call an authorized repair center for pioneer. Good Luck