Power indicator on, logo flashes briefly, but then no picture. What's wrong?

Hello,

It could be t-con bord or backlight issue. You can find more information how to repair this issue on jestine yong blog. Search for tv no picture and you can find many articles about this issue and how can fix it. jestineyong.com Or you can search on youtube for videos.

This could be due to bad capacitors in the sweep supply, a bad High Voltage block, a bad regulator.

check the T con board . check led driver board and led driver switch

Those flashes are fault indications. http://electronicshelponline.blogspot.com/ Visit the site linked here to get more details. Search the site by type in the brand name of your device in the search box at the top right of the display window to get gathered all the related posts.

Does the screen flash on briefly then go black when first switched on? See my posts in march for my answer to this fault.I traced the same fault on my own tv down to a faulty led in the backlight strip. Also my tv did the same thing,standby light flashed twice and then went out.Hope this helps

This indicates that the picture is being recorded. Do not turn the camera off or remove the memory card while this is flashing.

It sounds like you have corrupted files in windows, or you have a problem with the hard drive. Remove the hard drive and re-seat it back in place, start up the computer! If no change, use the original recovery disc if you have one and reload the operational system, if that fails have the hard drive tested for bad sectors at the computer repair store.

Look inside for bad caps with bulgng tops, worst case will be shorted out transistors in the backlight inverter circuits or bad lamps. Check to see if you do have he 12vdc for the inveter circuits. See example of failed monitors with bad caps here: http://s807.photobucket.com/home/budm/allalbums

hold the on button then turn up the volume

3 things will cause this and one wil be the problem. first off flashing green indicates protection mode.

Check for a faulty vertical chip. usualy removing it and briefly turning on the set will make the set work with a line across the middle of the screen. If the chip is the fault please replace the capacitors around the i.c as the fault will reaccur.

next check the horizontal out transistor , it should not be shorted between base and collector. if so check for dry joints around flyback trany and horizontal stage circuit.

last is the 8 volt regulator that supplies the micro its power. located on the power module.