Samsung HCN4226W 42" Rear Projection HDTV-Ready Television "drive blue light connecting" Questions

...blue drive circuit board on the green bulb, still has green picture. I connected the green drive board unto the blue bulb still no blue. I suspect a bad blue bulb. I confirms video signal levels thru ...

blue and green just not the red.... what part would mess this up? Sounds like you have two differant problems. A red drive or red picture tube is bad and the conbvergence IC's are bad. To test the red

blue and red. I also have come to notice that if the TV is off for a while then the green works fine for a couple hours. AFter it has been on for awhile is when the green starts flickering on and off.

blue light on the front blinks and the thumping sound gets louder... Help?? The problem is one of the video drive IC's on the crt boards is bad. These IC's are located behind the front speaker grille.

...blue dropout; ->cyan -> red dropout; magenta -> green dropout). The picture tube circuit includes not only the high voltage (second anode) section, but also the picture tube drive connection ...

...drive IC's on the crt boards short and cause this symptom. Try unplugging the 200 volt source to the crt boards and see it the set powers up and stays on. There is a B+ relay which supplies 130 Volts ...

...drive IC's on the crt boards short and cause this symptom. Try unplugging the 200 volt source to the crt boards and see it the set powers up and stays on. There is a B+ relay which supplies 130 Volts ...

...blue wires that has a black and white wire in each of them. is this plug the one that you unpluged. i had the same problem, bought this convergence board from ebay Samsung TV Convergence Board ...

...blue. In another ten seconds, the words check HDTV RGBHV cables. I have checked cables actually reversed all and can find no cable problems. And during this, the red light on the converter starts ...

...Drive) at no cost to you, end of story ^^ you have dust inside your optical block. you can have a expert try to remove the block, and blow it out with air . if that do's not work then the , optical ...