TV Repair Tips

Make Model Problem
Samsung LN46C630 No picture. Lamps are not on.
Samsung LN46C610N1FXZA, LN46C630K1FXZA, LN46C650L1FXZA, LN46C670M1FXZA, LN46C750R2FXZA, LN55C610N1FXZA, LN55C630K1FXZA, LN55C650L1FXZA, LN55C750R2FXZA, LN52C530F1FXZA, LN52C539F1HXZA Sound is there but no picture. Using a flashlight you can see video is there. Backlights are off.
Samsung LN46C630K1FXZA Customer complains that When unit first comes on it has vertical lines on the screen for about 10 minutes and then works OK. Of course the unit did not do it for me but I suspected the TCon or a bad panel by the description.
Samsung LN46C610N1FXZA, LN46C630K1FXZA, LN46C650L1FXZA, LN46C670M1FXZA, LN46C750R2FXZA, LN55C610N1FXZA, LN55C630K1FXZA, LN55C650L1FXZA, LN55C750R2FXZA, LN52C530F1FXZA, LN52C539F1HXZA After warmup looks like strobe light effect. Fast flashing brightness on picture.