Question about Samsung HLP4663W 46" Rear Projection HDTV

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When switched on the picture briefly apperars

When i switch the tv on the picture appears briefly then goes blank but the sound remains. you can see movement on the screen from an angle but its like it should be back lit or something can you help? its a samsung LA40N8

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  • 69 Answers

If this is a lcd flat panel the invertors for the backlights have failed

Posted on Feb 07, 2010

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Upon power on from the mains the TV goes into standby mode as expected. Red LED light appears in bottom right of tv. When then switching on the RED briefly turns green and then disappears. This has...


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There's some kind of circuit fault and it overheats,Sound like the power board on the tv need to be replaced. You can call or email the manufacturer and see what they say. Also get a cost estimate for the repair. It might not be cost effective in repairing the tv, due to the price of labor.

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there is a problem on your inverter board and the cold cathode lamp.The inverter board is the supplying high voltage supply to the cold cathode lamp.This cold cathode lamp is the illuminating the screen in which the the picture will appear once cold cathode is lit.here is a link where you can buy the parts.. Normal 0 MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman";}
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:Good luck hope this helps you..
please rate my help

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inverter panel is faulty you can probably source another via ebay if your confident on fitting it could be expensive otherwise

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your lcd tv is most likely not getting enough reception for the visual signal, try switching your tv back to analog signal (not digital) if you can by switching off av on remote, do you get your picture back, if yes thats your problem check your aerial, aerial leads and plugs, also do you have an aerial amplifier plugged into a power point, is it turned on to aplify signal.

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Philips 43PP8545


You have no high voltage, like many in this forum, this model of Philips has some of the same problems. Look around here you may find the answer to your set. If not check Vertical IC, TDA8177, audio ic on signal board up front on left. check Power supply first for blown fuse, 1000, 2004, 1300, 1900 etc. No sound or pic means something is open. Does set has L E D lights on front of set?

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