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It may have dying power supply due to bad caps. If you are going to DIY and already try the monitor with another PC, and have proper tools and know safety precaution then please read on: Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply (they should be replaced in a set), blown fuses; poor solder joints, failed inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed SAMSUNG monitors to get some ideas what to look for: http://s807.photobucket.com/albums/yy352/budm/ Post back what you see inside so we can guide you further and it will help out other people in the future also.
standby sont tv?...you need to open the back cover of your tv..check whether you fuse are blown/open...if yes,do not replace right away the fuse there might be a problem on the main supplys...using yuor multitester check your horizontal output transistor..it is located near the plyback transformer..if you do not now the correct testing of the transistor replace it with a new transistor...same with the regulator replace it with a new one...then replace the fuse ..your tv is now working again..
Look at the power supply module, most of them will have a surge protection devices (called MOV, same as used in common surge power strip but cannot handle big surge that power strip can handle) installed to protect minor surge, it should blow the fuse. Once MOV blown, it will more likely stay short circuit, if you put the new fuse in it will blow the fuse right away. You need to see if the MOVs blew up any sign of blown up components.
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might have happened due to over-voltage. Please check the power supply unit for
swollen capacitors and burnt wires/components on the power supply board of your
TV. You should try and turn off the TV for 8-10 hours to reset it. This issue
might have occurred due to blown pico fuses located on the D-Board or due to
blown fuse on the power supply board.
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There is 2 different flashers. One flasher for the turn signals and one flasher for the hazards. If you turn on the turn signals and the turn indicator on the dash lights up but doesn't blink, then most likely it is the turn signal flasher that is bad. Good luck.
Check power supply transisters possible shorted
and check transister next to ht runs picture may be shorted also check diodes 4off runs ac to dc
changover , this possible causes the fuse to blow , allways be carefull when pluging any
electrical item in
please let me know how you go thanks jeff..........
it may need a Flyback Transformer or a burnt capasitor and resistors. there are many posts with this same problem. Some a little different. Check the fuse just inside where the power supply cord goes in . if the fuse is blown you will have to find the reason it burned . But maybe you will be lucky and replace the fuse. And it will turn on. but I think that only a TV technician can fix the problem.I have a background on TV repair and I think it's the Flyback transformer. sometimes you canresolder them and they stay.
If you do not get any clicking or sound when trying to turn on the TV set, most likely the main fuse went out. This is almost always due to something else blowing out along or making the fuse to blow out. DO NOT SIMPLY REPLCE THE BLOWN FUSE! If there is other shorts inside the set, and you replace the blown fuse, you can cause more damage to the TV set. The best way to test this set if the fuse is blown would be to hook up a 100 to 150 watt light bulb across the blown fuse, and if there is a short in the TV set the light bulb will glow bright and stay bright. If the bulb lights up and goes dim maybe just maybe you got luck so replace the fuse and see what happens. If the light bulkb stays bright, there is a short in the set somewhere and if you do not have a service manual and a good multimeter and a knowledge of how the TV power supply works, you really should call in a pro to assist you in the repair of this TV. there is just too much High Voltage inside these TV sets to be experieenting around inside of it. Good Luck.