I have fan#1 and Fan#2 message on screen.It won't

Jul 05, 2009

- If the Actuator Driver Board has been replaced, it really seems to come down to either the Color Wheel Assy , the DMD Board, or Digital board. My gut hunch is the DMD Board. It Controls Lamp turn on, Powers the Color Wheel, Drives DMD Panel, Sensor Control, and Actuator Control. It could very well cause all the symptoms the set has. If the color Wheel is turning it is probably OK. What is the state of the LED's on the front of the set? When the unit shuts down one or more should be blinking.
Hope this helps,
Skyassoc

Jul 16, 2009

- When the Lamp goes out does the Color Wheel also stop and or does the rest of the set stay operating when the Lamp goes out?
The DMD board does control Lamp turn on and has other sensor control features. The real question is if the Digital board is giving the command to the DMD to turn the Lamp off. There is only a few reasons that the LEDs on the front of the unit are not blinking when the unit fails. It almost has to be one of the two causing the problem. But, go over very closely and look for any plug connectors or ribbon connectors that you might have over looked
connecting. In some respect you have too many odd things happening to be another Board failure.
Hope this helps,
Skyassoc

Aug 03, 2009

- After mulling this around for most of the day and going through the service manual, I also cannot get past the Power Supply being only around 162V to the Ballast. Either you got a bogus reading or the Power Supply you got is defective. The supply voltage should be approx 280V DC at CN1 on the Ballast Board according to the service manual. Try putting the old one back in and recheck the Voltage Reading at CN1. I still come back to the DMD Board being the problem. It has a part to play with all of the parts you have replaced both good and bad. It also controls the temp sensors and the error LEDs. From what I see you have replaced everything else except the DMD and Digital Boards. My vote is the DMD.

Sep 18, 2009

- I am glad you are up and running and I was able to help a little.
Now enjoy it, you have certainly earned it.
God Bless,
Skyassoc