help with the dreaded 'lamp light'

[ficklerx]

I have an HLR5067W that originally had the 'lamp light' blinking with no picture. Here is what I have attempted and results so far:

1. Remove and inspect bulb since 4+ years old. Found a hairline crack in the lens. Replaced with Samsung bulb and housing purchased for this sort of emergency. No change.

2. I was not hearing the ballast 'click' upon plugging in the unit so I replaced the ballast. No change. I have 316 V coming in from the power board. The bulb does light when plugging in the unit and this produces a faint glow on the screen. But the lamp light still flashes.

3. After hearing a faint bearing noise while the unit was powering down (only heard from behind with cover off), I inspected the fan in front of the the DMD which was ok.

4. Next on to the color wheel. The bearing was making noise when manually spun so I ordered a silver color wheel to replace the silver color wheel I had. No change.

Here is the current state. Upon plugging up the unit, with or without closing the safety switch, I can now hear the ballast click and the the lamp lights as described above in #2. The fans spin and the color wheel is now quiet. Closing the safety switch makes no difference. The lamp light will eventually stop blinking (15-20 sec) but the lamp will stay dimly lit and the fans will continue to spin as long as the unit is plugged in.

Any help would be appreciated.

[Angel]

As you said in the other topic, the DMD board could be malfunctioning. Since this is the device that controls the color wheel, ballast and lamp to create the picture.

[Jason1976]

most likely the digital board with the hdmi jack. check out the post I just put up. I found a way to fix the board without replacing it.