Question about Toshiba 50HP66 50 in. Plasma Television

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Black screen no video no audio suddenly now

Black screen no video no audio happened suddenly ,now permanently doing nothing

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This set is a 50" plasma. first check the AC power fuse on the filter board then: if it is bad: check the power supply by marking and, removing all the cables; (so you can put them back in the correct spot) except the filter board to power supply cable; that connects to the Power supply board. Then: replace the blown AC fuse and, re-power: If the power supply blows the fuse: again, the power supply is bad and, must be replaced or, repaired. If the fuse does not blow: turn off the set then: on again, reconnecting and, disconnecting each board cable in turn, untill the fuse blows again this cable leads to the bad board; replace or, repair the board that blows the AC fuse every time the bad board is connected, irregardless of which other cable to the power supply may be connected also; or, not.

Posted on Jun 26, 2010

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Check and have the lamp replaced, if it has been at least a couple years since you purchased the set then Its time for a new one...

Posted on Jun 05, 2010

  • Circuit World
    Circuit World Oct 21, 2010

    There are no lamps in a plasma TV to replace, only DLP projection TV's and projectors use halogen bulbs as a light source. seems as though a main ac fuse has opened if so replace it. If it blows again then your bridge rectifier, thermistor, and varistor need to be replaced. those components are responsible for handling in-rush current and current suppression. Let me know if this helps
    http://tvtechwork.webs.com/

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