Whena failure happens on TV, the TV should have some early signs of malfunction. Weshould use the correct approaches to determine the similar problems of the TV.This is the focus for the relief of malfunction, timely maintenance, andextension of service life.
Next, let's see how to findthe find the early signs of malfunction:
  
1. Turn on the TV, There'ssome changes on screen for picture like appearing in shades of red, blue, etc?After a while, it's back tonormal?
2. If you find the TV is in a splash screen, there's two kinds of possibilities. (1) If it's frequent appeared, it means the circuit of theTV was in faulty. (2)If it'stemporal appeared, it means there'ssome high-magnetic field causing interference.
3. If you find the TV is in a continuous picture rolling screen, it means there's some problems for the high voltage supplysystem. Pls stop using it in order to avoid damage of electronic components.
4. If you find the TV is in a gloomy picture with smaller size image, it meanspower supply or other output unit get faulty. You should send it to after salesdepartment. 
5. If you find the TV is in a blurred screen with strange noise, bad contrast,etc, it means there's someproblems for the tuner or medium-frenquency amplifier.

At last, it's important and necessary forus to find out the early sign and make a good maintenance for the TV.