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Samsung LNT4669FX-XAA TV Power Supply Board Replacement

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    • Be sure to unplug the TV from the main wall outlet.

    • Carefully lay the TV screen down on a clean flat table with the back side facing you.

    • Using a #3 Phillips head screwdriver, remove the screws holding the back cover on.

    • Thoroughly clean the cover and boards using a damp towel (I like to use 91% isopropyl alcohol) and if heavily soiled use a vacuum with a brush.

    • Using the #3 Phillips head screwdriver, remove the screws holding the power supply board on.

    • Unplug the connectors connected to the board setting aside and carefully noting placement for later connection to the new board.

    • Insert the new power supply board into the location where the old board was located.

    • Follow the previous steps to connect the cables and screw in the screws.

    • Follow the first step in reverse to install the back cover.

    • Plug the power cord into a wall outlet and power on the TV to verify performance.


To reassemble your device, follow these instructions in reverse order.

You can also repair your Power Supply Board potentially by using the BN44-00166C repair kit.

See the Attached Documents schematic for further Power Supply Board details.

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James Finch

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