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HITACHI 50ux10b rear projection TVfrom about 1993

HITACHI 50ux10b rear projection TV from about 1993
The TV would cut the pic and sound periodically and then come back on after a few minutes --all for a few days --
And now , it wont come back on at all--The red light comes on indicating power but there is no pic or sound --I tried re-starting several times and even pulled the power plug and still nothing, except the red light --I even checked all the cable lines and other connections--

Could this involve extensive repairs ? Sure would appreciate your help.

Thanks,,,,Ralph -- repko@cox.net

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Sorry,time to move on and buy a new TV.Too costly to repair!
solutiondoct

Posted on Nov 22, 2008

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You might have to change the power regulator. you need a qualified tv technician to solve this problem

Posted on Nov 21, 2008

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I fix one like this one; it was about 300.00 there was problems with the power supply,some capacitors leaking and the regulator ic was bad. only a technician could do this job

Posted on Nov 21, 2008

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It will run you about 400 to repair

Posted on Nov 21, 2008

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Hello repko,

This looks like a problem related to your High Voltage Protection circuit. This circuit shuts the TV down when it senses a high current condition (a short in a vital circuit). It may not involve extensive repairs, but it will involve some repair work. I can give you a better diagnosis if you do a few things for me.

1) unplug the TV and take the lower rear panel off
2) look at the back of the panel or in the TV for a chart showing you the diagnostic LEDs
3) Look at see if LED D912 is red or not (this may differ in your model, if so write down the numbers of all the diagnostic LEDs and there condition on or off red or green.
4)post these in a reply to this topic.

Once this is done I'll be able to give you some idea of how extensive this may be.

Thank you,

I hope this helps,

Shuttle83

Posted on Nov 21, 2008

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