1 , the boot image is vague, though gradually to normal after a period of time , but after a period of time when the power failure shutdown will occur again , but as one day , more and more serious fault ;

2 , after the boot image has been blurred , use long after it did not improve.

Understand the point of failure errors:

Some semi-professionals to see these two failures to say that they are tube life , and some to see the maintenance staff would say about the focus adjusting the contrast or the ignition coil pole potentiometer on the potentiometer and acceleration will be very good, there are people said that the graphics hardware failure or damage caused by the graphics driver . Determine which of several points of failure are wrong - the contrast of the picture tube aging and decline will not cause such symptoms. As adjusted gathered pole pole and accelerate the potentiometer even incorrect , this is a temporary solution, but it is difficult to be transferred satisfactory level , the most annoying is that before long the fault will relapse , even accelerated aging CRT .

 

Cause and Countermeasures :

Are often used for more than two years Caixian this failure to appear , under the real cause of the failure in most cases is caused by oxidation damp CRT tube socket , just replace what genuine new socket will be able to troubleshoot . But some say the new socket before connecting to first find a small piece of sandpaper to the end of the picture tube protruding pin polished clean , aims to remove the oxide layer, such an approach is tantamount to superfluous. In my replacement of the header tube , and indeed some of the pin has several oxides , these oxides are missing in the original header to the pin , as long as clear can be swept away with a small brush . So far I have not seen a case of pins are oxidized , but the situation is due to the excessive force leaving the pin at the leak and damage the picture tube 'd encountered a few cases, so we should not be polished with sandpaper to avoid "death " damages ! If the seat is not effective to replace the pipe to be replaced ignition coil, but this work I suggest that you are looking for the best professionals ! In addition , depending on the part of the circuit to put some models are special, sometimes after failure can also cause blurred images , but then usually brightness and rows, field amplitude also have abnormal for such failure point I suggest you deliver professional deal !

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