No backlights i have this tv toshiba 47hl167 47 inch lcd tv witch do come on and stay on but no backlights at all you can see the picture ONLY IF YOU LOOK CLOSLEY AT THE SCREEN WITH A LIGHT SHINNING ON IT OR A AWAY FROM THE SCREEN enough to create the reflection yes you can see the picture on a dark screen no backlights nowhere can yall give me a little advice joe

The Spaminator Mar 22, 2021
Hi Dawn Thomas, the lamp is known as a back light and using a torch on the screen when tv on will confirm if the back light is the fault. it could also be a faulty backlight inverter which powers the back light .

Hi,

Normally it could be a lot of things, but most of the times is the backlight that goes off.

Turn the TV on, chose a channel and once you have sound and no picture try to look really close to the screen and see if there is an image there and just the backlight is OFF. (sometimes a dim ambient light and a flashlight pointing at the screen helps to see, try various angles until you can check if there is an image or not runing on the screen).

If you have image and no backlight, then depends on what type of LCD you have.
Backlight can be with CCLF lights (really thin flourescent lamps) or LED (horizontal led strips beyond the LCD panel).

Either way you will have to check the power source and probably dismantle the hole LCD screen witch is made from a few VERY SENSITIVE layers (they break quite easy, specially the first one, the LCD layer) and replace the lamps/led strips (all of them would be the best choice, but could get expensive).

You can find many tutorials on Youtube on how to do it, could be a nice 50$ to 100$ weekend project if you have experience with electronics, still a risky and possible dangerous one, remember TVs still have charge in them after unpluging them so if you dont have experience or knowledge about it, dont try it, leave to a professional.

Hope it helps

Do this test first. With the TV on normally, shine a flashlight on the screen. look for a dim moving picture.
1) If you see one, the backlight led driver isn't working.
2) If you DON'T see a picture replace the T-Con board.
You can get parts here: www.shopjimmy.com TV Parts Universal TV Stands DLP Chips ShopJimmy

Hi Cool,
Please disconnect the bulbs number one and solder a 4200pf/2kv capacitor in its place. See if the set works. Do the same for all the bulbs till you find the defective one. With the defective bulb replaced with 4200pf capacitor set will not power off. If this works and the light on the screen is sufficient, you can leave the capacitor soldered there. I hope it helps.
Good luck.

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/

check the video amplifier and lcd backlighting they may be faulty

Head to the hardware store for replacements. They will be somewhere in the range of an 8 to 12mm and about an inch to inch and a half long.

That model is an LCD that uses a backlight. Probably with CCFL tubes. They are known to have bad inverter supplies. Its an old TV though. Keep that in mind.

Its a backlight problem. Common with this model. Under warranty? If not, then its a service shop repair.

I have same problem with a 7 month old Toshiba 26LV610U LCD TV/DVD combo.