Hitachi 57S700 57" Rear Projection HDTV Logo

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Posted on Aug 16, 2007
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Will not turn off

When i go to turn off the tv magic focus comes on (which it is not set to do) i let it run then the picture comes back but no sound. i can't change channels or volume. i press the power button it returns to normal tv. i have unplugged it for hours with the same result each time i even tried the timer same result.

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  • Expert 140 Answers
  • Posted on Aug 20, 2007
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It sounds like the contacts on the on-off relay are stuck on. You can tap the top of the relay cover and that will shut it off (releasing the contacts) For a permanent fix, try taking the plastic cover off the relay and clean the contacts with a file (or just replace the relay)

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Some kind of a problem likely in the magic focus area--is the set showing a error on screen if you engage the magic focus?

One thing not to do is disconnect the sensors inside the screen as that could make things worse......
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Model does not sound like Hitachi but if it is have you unplugged the set? The magic focus is a auto convergence circuit in the Hitachi sets.
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Press the Magic Focus button,will not solved ur tv convergence problems.Ur tv 100% have an convergence problems,it dead.The tv convergence board have dead 2 STK convergence ICS and some or all of it resistors.These parts on the tv convergence board,must be replaced to solved the tv picture convergence problems.The shop,will cost u like $300-350 for parts and labors.
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50ux26b Hitachi

Good Day;

Sounds like the Convergence Circuit in the TV has failed. Call an Authorized Service Center and have them come out and give you a wtitten estimate B4 repair.

Good Luck, big IRISH.
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Go to the panel (on the tv set), hit magic focus on there....then hold power button for several seconds long. It should go off and fix your problem.
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