2 yr old tv. when i turn it on, the sound works fine. the screen is blue with white trace line. when i adjust the screen from the flyback transfer the tv shuts off with the power led blinking. i need to pull the plug and replug it back to get the sound but the screen is blue with white trace line. in background i can see some faint images.
i didnot see any obvious burned out parts.
i can follow directions. troubleshooting guide or stepwise approach will be helpful.
thanks in advance
It seems to be a problem with the G2 voltage or maybe a capacitor in the screen voltage circuit. Could possibly be a bad flyback or a problem with thepicture tube. I check with a crt rejuvinator should tel you if the crt is good or if it has a short in it. Good Luck.
thanks for the input. i was going to check out some basics.
tell me more about the capacitor controlling screen voltage. are they the one on the board at neck of crt or somewhere on the main board near flyback transformer.
the set is only 2 yr old still it maynot be cost effective to get into expensive repairs. i do not think the tube is under warrenty since i do not have the receipt.
thanks again.
I would say that the video amp in crt board is faulty
Check the capacitor on the main crt board as well as the video drive IC on the crt board. It is not a descret componet. You really should get a schematic diagram so you will know where all these parts are.