Question about Hitachi 53FDX20B 53" Rear Projection Television

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TV PIcture and Sound Shut Down

Hitachi 53FDX20B Projection TV:Picture and sound were working and then it shut down. Powered on and off, everything reset and worked for about 20-30mins and then it happened again. Length of time between resets has shortened to about 1-2 mins. When the screen shuts down the front power light stays on. Removed back of TV, when the problem occurrs there are 4 green LED's and 1 Red that remain lit even though the screen and sound don't work. Can see 3 fuses which appear to be okay. Don't see or hear a fan. TV has 3 color tubes. Any ideas would be helpful

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  • mh5117 Jan 22, 2009

    The colors and sound all appear to be normal when the power is turned off and then back on. When the set goes into protection mode all of the leds remain lit and do not blink or go out.

  • mh5117 Jan 22, 2009

    The colors and sound all appear to be normal when the power is turned off and then back on. When the set goes into protection mode all of the leds remain lit and do not blink or go out.

  • denkal8 Feb 06, 2009

    I have a model 53fdx20b set that powers off by itself. It would do this several times and stay on, now it doesn't stay on at all. The sound does go on if I turn on aux. speakers. Thank you for yor help. Dennis

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  • 273 Answers

It would appear its shutting down in a protect mode
its possible its a convergence circuit problem or something on the deflection bd
but it most likley will require some assistance from a tech that is used to working on this type of set
if you noticed when it does come on that the colors are all off line then suspect convergence circuit trouble the the green leds tell you what source is still alive there is a chart in the cabinet that will correspond with each source voltage that can lead you to tracking it down if you know what to look for and have the tools to do so

Posted on Jan 21, 2009

  • T.l. Moore
    T.l. Moore Jan 23, 2009

    at this point you might want to consult a repairman in your area for assistance

    there are many possabilities and they will have to be traced down to tell you a repair scenario

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