Facing TV Problems? Ask a TV Technician.
If there is still a good voltage from the inverter to the backlight when it goes off, then the backlight itself is faulty.Also, if on powering on, the screen is visible for a second or split second and then goes dark the rest of the time, then it's definitely the backlight that has failed.
The backlight itself cannot be replaced - the TV is beyond economical repair in this case.
If the chip is bad the backlight will not come on.
If the backlight comes on for 2 seconds then goes off then the backlight itself is faulty - not a component on a board.
The backlight is the bulbs that actually provide the light and are built into the LCD display panel.
No, when the bulbs fail, they will come on briefly and then go off again.These are not incandescent bulbs in the traditional sense, they are actually Cold Cathode Fluorescent Lamps.
The backlight is built into the LCD display panel and the entire panel must be replaced - they are not separate parts.
Correct, the bulbs (lamps) are an integral part of the LCD display.