I have a 65HM167 that is about 6 years old. It has been a great TV. I have went through two bulbs and not long ago the screen just went black. No bulb pop or any noise that I recall. The bulb is intact with no visible signs of damage. I ordered a new ballast after reading some other posts on this forum hoping that would fix it to no avail so far. I am getting sound, but no picture and I don't believe I hear the bulb trying to fire. I can visually confirm both fans are running, and there also seems to be a click (but not from the ballast board, more from the color wheel enclosure) then a tenth of a second after I hear two 'wining' sounds that occur maybe a quarter second apart that I would describe as something spinning (a higher pitch, not bad and I recognize the sound from when the TV was working)- though I don't believe these sounds are coming from the fans. It sounds like the sounds come from the color wheel area so I'm guessing it is operating. I can see a green light on the board that sits vertically that is by the power supply board. On the front, I will get a blue light, then the yellow light will flash 15 times and everything will start over (click, two whining sounds, 15 blinks from from yellow led). This process repeats several times and then I get a red light. So all in all, I get sound, no picture, no menus, no bulb strike. Does anyone have any ideas what I should try next? If there is a way to test the bulb, the ballast, or any other parts that might be causing that that would also be greatly appreciated. I sure hate to loose this TV, it has really been a good one. And even more I hate to drop another $1,500-$2,000 for a new 65" flat screen. Thanks so much for the help!!