20 Most Recent Toshiba 56HM66 56" Projection HDTV Questions & Answers

unfortunately I don't have any solutions for you. I have just started to have the same problem and have only replaced the lamp. i was going to move on to the ballast but wouldn't want to if it going to be a waste of time. Did you ever find any way to resolve the prolem?

Did you use a Toshiba lamp--Toshiba sets will NOT work right with a generic !!

Replace the lamp.

Maybe you need a new one.

the motor for the colour wheel may be warn out or coated in dust. motors can go weak at any time. they usaly need to be replaced after 2-3 years.

Per the manual, page 2http://www.manualowl.com/m/Toshiba/56HM66/Manual/33146?page=2This TV contains several cooling fans to moderate the internal temperature. You may be able to hear the fans for several minutes after the TV is turned off. This is a function of the Quick Restart feature and is not a sign of TV malfunction. You can set the Quick Restart feature to stop the fans as soon as the TV is powered off. See "Setting the Quick Restart feature" (- page 20).

may have got a bad new one or ballast board in set is bad. It powers the lamp.

If you have not done so, not indicated here, inspect the lamp first, is it intact?

first place to look is the lamp this set uses, does it come on at all?

this is a digital board problem. Part# 75004946.
has to be data transferred from dmd board. options menu in service mode. scroll down to dmd>digital transfer. press left arrow on remote to initiate. when says ok exit on remote an shut off................. Meder's Tv

I seem to remember this issue in their sets, might want to spend some time with the model number and search "problems" as I have seen this in one of these before---several thousand sets ago.