My RCA TV missing red colour in it, it was allright for few seconds when the tv is turned on, but afterwards the red color is gone. What problem could this be?
This problem could be a few things. first if you know how touse a volt metter go to the crt pcb on the end of the picture tube. Try to measer the voltage on the collector of the red drive transistor. If when the red color goes away and the voltage shoots way up past 150 or so volts then the red drive is disapearing from the video jungle ic or through one of the componets from it. If the voltage drops way low like less then 65 to 75 volts or less then theres a cold solder connection between the b+ feed resistor that suppys the b+ to the drive transistor the driver power supply sourse.. In an extremely rare case would the Picture tube be at fault but certainly could be. Good Luck OOps almost forgot it could als be a bad connection on the crt socket as well..
Posted on Apr 05, 2006
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My picture has no color. Its in b&w. The menu is in color, but everything else is not. I have a 27v514t that I am wondering if I could use parts from that one to fix my 27v530t. Also- the 514t was said to have no sound. I want to fix the 530t, but not sure if it has a seperate color graphics card that I can switch with from the 514t tv. I am at [email protected]
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