Hi Norcal715. I love your you tube tv repair videos. I received an Sony KDS-70XBR2 as a freebie with the green picture. Found a donor set on CL and followed your videos. Sold it for $400. Awesome. I have since fixed another and made a test jig out of my donor set. Really enjoy fixing tvs. One question. some times when in service mode on Sony XBR1, the qm screen shows up but the patterns do not display. Cant figure out why. I got it at first but now for some reason once in service mode and cannt get test patterns.

Do you have any ideas?

Thanks in advance,
Chris