TV power light comes on but no picture/no sound

tv seems to turn on but no picture? - Forums - CNET

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CNETJun 11, 2015 - ... Samsung Dlp TV (HLR-5067W) it seems like the TV turns on butthere is no picture. ... the lamp is, light is visible from where the lamp is located but no picture. DLP Twon't turn on, blinking green lamp light then shuts dow ...
Jun 11, 2015
Samsung Plasma TV - Won't turn on
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The timer, lamp, and standby/temp. light are flashing?!
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TV with Black Blank Screen Repair How to Troubleshoot ...

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May 8, 2014 - Uploaded by ShopJimmy.com
TV Repair Help for a TV With a Black No Image on the Screen ...I Have A Sanyo TV I Can Hear But Black Screen Im 14 And Dont Know What To Do ! .... power button the power light goes from red to green, the screen flashes on then goes black ....Troubleshooting LCD Backlight Failure Samsung LNT-4066 ...

Samsung plasma tv repair blinking light no picture ...

I would have the power supply checked for the screen and then have the power button checked it may be faulty.

The power light keeps flashing and the tv won't turn on. If you unplug for a minute and hit the power button it sound like it is coming on then it shuts off and the red power light flashes slowly. The TV is a Panisonic 1080i HDTV, about 6-7 years old.

how many times is the power light blinking as thats a error code. 3 blinks is the most famous which means convergence circuit failure.

blown caps in the power supply a 470m at 16 volt cap it will be puffed up

I would try a power drain:  Unplug the TV's power cable so the TV is not grounded to the house.  Then press and hold in the TV's own power button for one minute to drain the capacitors. Plug the TV back in and see what happens.  If the TV will still not turn on, I would say you have a problem with the TV's mainboard as a dead power supply will not light any LED's for you.

Hi


check the main fuse that should be close to where the power cord comes in,if you find the fuse blown it needs to be replaced with an exact replacement for AMPS rating and VOLTS rating as well as size,if the fuse is blown black we might have more problems ahead in the circuit and it will blow up again as soon as you plug the tv back in,if it blows again it will need a more involved repair,the problem could be in the primary side of the power supply.......
Check horizontal output transistor.............

you have warranty go with it .......you can get it fixed ....

NO audio and no picture .... no power to on - off button. Checked outlet and it is good .... cable connection good - checked with another tv....

This sounds like an o-so familar problem. It sounds like the Switching IC or the MICOM has failed

I was watching my tv and it just automatically turn off, everytime since then i turn it on it goes off in seconds without picture or sound comes.