My tv powers on and off. When you unlpug it and plug it back up it powers on. and it will power on and off sometimes five or six times in a row and then it might stay on for a minute and then go off. sometime it might even stay on for ten or minutes before powering off. I just need a little help
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Re: powering on and off
I must say this is a wierd problem here.
First of all, make sure that the T.V. has enough space, and the cables arent layed on each other, give each cable its space.
Now, try to check the main T.V. cable, is it strongly plugged in? because it should be, might be that your cable is weak and gets loose sometimes, so try to plug it in in a strong way.
Keep me informed.
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When was the projection lamp last change?If the tv,projection lamp inside the tv at last change was 1/ 1/2 or 2 years ago,and the tv is on,an in use at lest 4 or 5 hours day.The projection lamp life,it over should be change the projection lamp.Now tv turn on LED light "LAMP" indication light up or flashes?Yes,the projection is dead,hear alot of clicking too?The Ballast board it also dead,should be change too.The Ballast board,this board job,it help to ignite the projection lamp.
My thoughts is that there is an issue on the power supply board. Sony is one of the best serviceable TV's. If you find a TV shop that services Sony. They will be able to fix it. May not be the cheepest but they should be able to fix it. Blessing, A/V Media Guy
Pull back make sure Fans are clean ,But if you have never replace Lamp ,Lamp needs to be replace call Mats 1-800-628-1118 Rember also Ballast board is what turns Lamp on For Ballast board call Encompass 1-800-638-3328
If lamp is good, Did you reset lamp hours? That should be done. Reset instructions are different for different brand tv's. If you have reset the lamp hour counter, then test the ballast and the power supply to make sure they are sending out a constant voltage and current reading.
take the back off. find the board that ac cord is connected to.there are six screws,four plugs and a ground wire. carefully remove the plugs without breaking any of the wires.(the first time a plug is removed it can be quite hard to get out.) then remove the six screws and the ground wire connected to the chassis.lift out the board replace it with the new one and reverse the the instructions. retired tv repairman
Resetting the TV NOTE: Some TVs have a reset button. If available and accessible, try using the reset buttons before using the steps below. Using the reset buttons can save time. 1.Unplug the TV power cord from the power outlet. 2.Unplug any connected devices (DVD, Set-top boxes, etc...) 3.Press and hold the TV power button for five seconds. 4.Plug the TV power cord back into the power outlet and turn on the TV. 5.Open the on-screen menu to confirm that the TV is responding again. 6.Turn off the TV and reconnect the devices. 7.Turn on the TV.
this tvhas a built in safety feature, fuse, sometimes you can hear a faint popping noise when you turn the tv on and it shuts down. This feature was designed to prevent power surges from hurting your tv any more than it already is. You will have to have someone repair the small problem you have now and reset the tv. 10% of the time you can try holding doen the menu button for 10 seconds and/or unlpugging it for 4 hours to do a hard reset. This hardly ever works though. It will probably cost you about 200 to 500 to fix it. sorry
Most likely the convergence ICs are bad. These aare large black ICs attached to a heatsink. They will be marked STK393-110 and have about 15 pins or so. Replace these and check the fuses marked F9A01- F9A06 on the same board. Replace any open fuses after the IC replacement and report your results here.
You might want to unlpug the powercord for the night, then plug it back in the next morning. Some times that can help reset things.
If that still doesnt do the trick, you might have a faulty power cord. If it does this with every source you hook up to your TV then that would be a sign that its something in the set vs. your external source.