Question about Hitachi 57F500 57" Rear Projection HDTV-Ready Television

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My hitachi 57f500 turns itself off after 3 hours of use. Turning it back on restores the picture,

My hitachi 57f500 turns itself off. Turning it back on restores the picture. This happens after the tv has been on for approximately 3 hours.

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Hi I am Vortash
There may be actually nothing wrong with your set ? .......
This set has an anti surge protection circuit and it is designed to shut down should the incoming power peak above 240 volts or more , is this happenig at random times or around the same time in the evening or day it may be that this safety device is protecting the set .. sometimes local area transformers peak at the time of most consumer requirements this may just coincide to when you sit down to watch tv .. however if it has a habit of doing it at different times during the day .. then this safety circuit may be at fault and require an engineer to service the tv and check for poor components that have changed value .. It explains this is in the manual if you do not have one for your set you can download one for free from http://www.safemanuals.com hope this is of help regards Vortash

Posted on May 20, 2009

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You may have a bad convergance chip, a bad CRT( picture tube ), CRT Board ( board pluged into the picture tube),or a bad video chip. Although this is somwhat a common problem on this model of set, I have found many different fixes. Sorry I can't be of more help. Good Luck
Ed
NC Electronic
Mills, Wyoming

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