Question about Hitachi 50EX01B 50" Rear Projection Television
it could be an internal corruption problem, but I doubt it. This
problem is usually a serious power failure and generally very
expensive. Sorry to say.
ONE: First, reset the tv by unplugging the power cord and let it remain unplugged for at least 4 hours. When you plug it back in the internal codes will come up as factory default settings. It may reset the power control section, but I doubt it; maybe 10% chance.
TWO: Look for a fuse on the back side of the set. It would be a black round knob with a fuse inside when you unscrew the cap. The fuse is usually about 1.5 inches long and 1/4 inch in diameter with metal on both ends and glass tube in the middle. Replace it with the exact same rating. It will probably blow again when you put in the new fuse (90% probably) and you will have to find out what is causing the failure.
THREE: If nothing seems to make any improvements, you will need to have a trained tech come to your home for a house call. If you can find someone who has experience with your model or similar chassis from the same manufacturer you will be better off.
IS THE SET WORTH FIXING: Yes, generally speaking, big projection sets are built to last 10 to 20 years. If you like the set and it has been a good product for you it would be worth fixing. The cost of repair will likely be in excess of $200 plus the house call. But that may not be a bad investment to keep it running for another few years.
But, in the long run it is a decision you will have to make.
Technically speaking, the cause of power interrupt failures are caused by heavy power drawing circiuts such as the projection tubes, power supply and high voltage sections. The projection tubes are very, very expensive to replace, but the others are not so bad.
Hope this helps you get started on the right solution.
Thanks for sending in your question and let me know if you will need further commentary.
Posted on Mar 29, 2009
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