Question about RCA 27F530T 27" TV

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Screen colour missing

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?

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Re: screen colour missing

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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RCA model #f27648 reds missing from picture

It sounds to be a video output stage circuit fault. Check all the solder terminals at its CRT base card, including the solder terminals of the CRT base to the card. Re-solder all the suspected solder terminals by applying a little more fresh solder. Contact any service technician. Check the solder terminals of Red color output transisotor. If needy, replace it with a new one with same number printed on it. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" will make surf easy. Surf the site with patience. Pull up older posts there.
The fault is 'one colour predominant/absent screen'

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Colours missing from tv

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