TV turns on, but no backlight, no audio, no picture

Panel or backlight problem

Sir
PIC OFF/TIMER LED-------Green or Orange LED-------
* Lights up in green when Picture Off is activated
* Lights up in orange when the timer is set
When timer is set, the LED remains lit even
when the TV is turned off
thanks
M Nasir

Hi Omar,
Most likely it is the backlight in your TV causing this problem. Please check the backlight strips if you can. T Con board has nothing to do with this fault. I hope it helps.
Good luck.

Use a voltmeter to confirm all the voltages are present when the TV is powered on. If they are all correct then replace the led driver.

These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices.
http://electro-medical.blogspot.com/
http://electronicshelponline.blogspot.com/
If blinks continue without any pause, the main board is faulty.
Search the site by type in the "brand name" to your device, in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.

T'Con board fault. Check and replace it. If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/

If the TV is older than 3-5 years or do, it is probably an LCD model with a fluorescent backlight. These backlights have issues with the inverter boards and/or the tubes failing over time. This is why newer flat-panels have gone to LED backlighting. Without the backlight, the picture is actually on the screen, but you aren't able to view it because there is no light to illuminate it. These CAN be repaired, but the cost of new TVs makes it almost most cost-effective to upgrade to an LED TV.

video chipset bad. Need service.

Bad caps in the power supply must be replaced .

I had a similar problem. Fleeting video, then audio only for few seconds and then nothing except the green power LED blinking on and off.
I changed the power inverter board, backlight inverter boards and power supply board but still the problem is not gone.

Just 18 month old TV and out of warranty.