Display problem in Sony Vaio svf5212

[Lucifer1920]

My laptop is not showing anything on screen, not even backlight. I tried connecting HDMI cable to my TV but still it shows no signal. I think LCD screen is in good condition, as on time when I turned on my laptop it was displaying. But next time when I booted it, it wasn't showing anyyhing.I think there is some other problem. Kindly , if any one can help. Thanks in advance.

 

[Lucifer1920]

MERGED QUESTION
Question from Lucifer1920 : "Display problem in Sony Vaio svf5212"

My laptop is not showing anything on screen, not even backlight. I tried connecting HDMI cable to my TV but still it shows no signal. I think LCD screen is in good condition, as on time when I turned on my laptop it was displaying. But next time when I booted it, it wasn't showing anyyhing.I think there is some other problem. Kindly , if any one can help. Thanks in advance.