Question about Toshiba TheaterWide 52HM84 52" Rear Projection HDTV-Ready Television
Recently, my TV lost picture but had full sound and tried to reboot itself 8 times. As normal, I replaced the DLP Lamp as suggested in the Owner's Manual. After replacing the bulb, I found that the television had the same problem. After a few days or so, we turn on the television and it worked properly without any problems for a few days. Then again, the TV failed with sound and no picture. Basically over the last three weeks, it comes back and then goes away. Every time the television does not power on, I hear the fan speed up, then go quiet for a milliseconds and then continue to speed to its top speed. Since I have replaced the lamp, I do not think that it is a lamp problem. I want to fix this problem on my own but I do not even know where to begin to trouble shoot it. Reading all the other Toshiba posts, I can be fairly sure to assume that it is lamp ballast problem. Any suggestion?
I did not see any light when I tried in the dark. Do you think it's the ballast problem?
Posted on Jan 16, 2008
The ballast should make momentary arcing sound and orange flash in its spark gap tube when it 1st trys to light the lamp. look for it in the darkness it will be easier to spot, as you listen for it. make sure you are buying toshiba factory replacement lamp.
Posted on Jan 15, 2008
SOURCE: replacing ballast
To confirm if the ballast is bad check the ballast board to see if the spark gap (on the ballast board) lights when you first turn the set on. If it does than the ballast is ok.
Posted on Sep 20, 2009
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