Question about Toshiba REGZA 42 in. Flat-Panel LCD HDTV

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Sound but no picture on 42" Regza.

My 42" Regza has sound but the screen is completely dark? anyone experieneced anything similiar? what fixed the problem?

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It is either the backlight inverter is not getting the 24vdc from the power supply or the inverter board is bad. Look for bad components, short circuits, dark brown heat spots, fuses.
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Please see my basic troubleshooting guide here:
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Posted on Jul 11, 2010

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Have a toshiba 42" tv has sound but no picture how do I fix this?


Does your backlight turn on when you here the sound? If it does replace your T-con board. If you don't get any backlight, then you either have an inverter problem or a panel problem.

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That sounds like the backlight system or its powersupply has failed. If you can see an ghost like image when close and at an angle near the dge (depends on the light) then this confirms the backlight being the problem.

Repair cost should be about $100. You should be able to get this fixed under warrenty if you have any. If not get repair estimates before doing anything. It should be worth fixing but it never hurts to know if it is getting close to what a new replacment tv is worth.

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