Question about Toshiba 42H81 42" Rear Projection Television

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42" standard tv

Push power and sounds like it turns on but it doesnt

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  • 46 Answers

The internal bulbs have deteriorated...the manufacturers are real smart, these monitors dont last forever. So if repair estimate is too expensive then replace the whole unit.

Posted on May 24, 2009

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Push power sounds like it turns on but it doesnt


Discharge the power from the set before you do anything. HIGH VOLTAGE!!! Look at the power supply. It will be in the area where your power chord is soldered in. Toshiba sets are notorious for the mosfet chips going bad. But your problem almost sounds like some bad capacitors. If the mosfets were bad, you wouldn't have any power to your buttons/LEDs. Replace all of the capacitors within the power supply section. They're cheap.

May 24, 2009 | Toshiba 42H81 42" Rear Projection...

1 Answer

My tv doesnt turn on but it has a clicking sound


Hi, this clicking sound is coming from the power supply board. this Board accepts the power stream from the wall outlet and regulates it with capacitors and resistors and transformers etc.. when these components are malfunctioning or damaged, your unit will make these clicking noises.

Simply replacing the power supply board and fly back, if installed, will fix this issue.

Please rate and have a great day:)

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The 7 blinks means that the SC scan drive board might need to be replace but only after checking the voltages from the power supply. If the voltages from the power supply are normal, then proceed to replace the SC scan board.
Click here to find the board you need.

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