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Re: sound but no picture
Loss of picture with sound ..loss of picture could one of many problems.. these units have serval specal fuses that a tech would need to check. loss of high voltage is a possibility. i would think this would be worth getting a tech to check out, the fact you still have sound may be a positive,
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This is a common problem with this TV, but there is an upgrade to correct the CONVERVGENCE circuit problem. If you want to repair this concern yourself: Contact:B&D ENTERPRISES, 1-800-458-6053, www.bdent.com and ask for KIT10 for your Hitachi TV. If you want some else to do the repair for you call an Authorized Service Center. Needs convergence IC's http://www.digitalhome.ca/forum/showpost.php?p=564268&postcount=220 http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html
Sorry to say, But its probably the light engine.Hitachi has had big problems with this, its all over the net about this kind of problem. If the set is not very old, you may try to call Hitachi and complain, They did replace mine in my 50V715 but I had to pay a service call of $300 to have an authorized dealer replace it. Hope this is helpful.
Read the info from this website and see if that could help you to fix your TV. All rear projection TVs behave the same way regardless who manufactured them. Before trying to make any adjustments, put a mark on the original position of that screen control potentiometer just in case you have to put it back to where it was.