Hi I working on Sony KE-42M1 plasma tv.When tv is on the picture did not
appear but after 2-3 seconds the symphtoms looks like picture wash out
the screen from black to real picture but still picture looks pretty
dark(don't see any colors).If I send 7 bar colors signal all of them is
black.I changed the BP board which is make the video but problem still
exist.My thoughts that it could be Y-board because the power supply is
ok(checked all voltages output)or screen itself.Is anybody had the
similar problem with this model?Any help will be appreciate.Thank you