Question about Toshiba 32AF41 32" TV

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Green is not being displayed on my TV

I bought my TV used about a month ago and up until now there have been no problems. I turned the TV off last night and when I turned it back on this morning it looked weird. After a quick investigation I found that the color green was not being displayed. The OSD that use to be green is now black. Tried several different inputs including the colorstream, and nothing will display green. I took a picture of the TV to show the problem (http://img.photobucket.com/albums/v666/Stirlin_05/TV.jpg) The LED in the back should be green as well as the black circle next to the red circle on the blue background (right side of screen). Any ideas?

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You chk with RGB drive voltage and re solder the nick board.

Posted on Dec 29, 2012

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If you have experience troubleshooting solid state TV sets, you should be able to tell by a couple of voltage measurements if its a problem with the picture tube or the drive circuit. Simply take the multimeter and compare the base voltage of the green drive to the red or blue drive transistor. If the voltage is about the same, measure the collector of all three. if the green voltage on the collector is higher then the others, then theres an open between the drive transistor and the crt element. this could be an open resistor, a bad solder connection on the crt socket, or an open picture tube element. If theres no voltage there then your going to have to trouble shoot the drive circuit.

Posted on Sep 08, 2006

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