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Philips 22PFL3504D Power Transformer Replacement

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  1. Philips 22PFL3504D Power Transformer Replacement, Power Transformer: paso 1, imagen 1 de 3 Philips 22PFL3504D Power Transformer Replacement, Power Transformer: paso 1, imagen 2 de 3 Philips 22PFL3504D Power Transformer Replacement, Power Transformer: paso 1, imagen 3 de 3
    • Here is the Philips 22PFL3504D. Fingerprints are definitely visible on the glossy front bezel and the LCD. those are really just smudges.

    • Turn the TV over and lay it down,

    • this will show the four Philips head screws that hold the base on to the TV

  2. Philips 22PFL3504D Power Transformer Replacement: paso 2, imagen 1 de 3 Philips 22PFL3504D Power Transformer Replacement: paso 2, imagen 2 de 3 Philips 22PFL3504D Power Transformer Replacement: paso 2, imagen 3 de 3
    • With the four M3X15 mm screws removed, the base can be taken off.

    • Remove the three Philips head screws on the right side

    • Remove the three Philips head screws on the left side.

  3. Philips 22PFL3504D Power Transformer Replacement: paso 3, imagen 1 de 3 Philips 22PFL3504D Power Transformer Replacement: paso 3, imagen 2 de 3 Philips 22PFL3504D Power Transformer Replacement: paso 3, imagen 3 de 3
    • Remove the two Philips head screws on the bottom

    • The back cover can now be removed by simply lifting it up.

    • Here is a view of the layout of this TV. Clean and tidy with only a few ribbon cables.

  4. Philips 22PFL3504D Power Transformer Replacement: paso 4, imagen 1 de 3 Philips 22PFL3504D Power Transformer Replacement: paso 4, imagen 2 de 3 Philips 22PFL3504D Power Transformer Replacement: paso 4, imagen 3 de 3
    • Remove the three CCFL connectors

    • Remove the top flat ribbon cable. it is a simple press fit and just needs to be pulled out.

    • remove the two and flat ribbon cables from the video board,

    • as well as the ribbon cable from the interface board.

  5. Philips 22PFL3504D Power Transformer Replacement: paso 5, imagen 1 de 3 Philips 22PFL3504D Power Transformer Replacement: paso 5, imagen 2 de 3 Philips 22PFL3504D Power Transformer Replacement: paso 5, imagen 3 de 3
    • Remove the power button cable. It is a eight pin connetor and needs to be pulled up

    • Remove the twelve M3x6mm Philips head screws

    • Remove the board from the TV

    • this is the transformer that needs to be replaced.

  6. Philips 22PFL3504D Power Transformer Replacement: paso 6, imagen 1 de 3 Philips 22PFL3504D Power Transformer Replacement: paso 6, imagen 2 de 3 Philips 22PFL3504D Power Transformer Replacement: paso 6, imagen 3 de 3
    • Turn the board over so that the solder points are up. Identify the connections for the transformer

    • Use some flux on the desolder wick and desolder the contacts.

    • The wick leaves the contacts without any solder, which will help to easily remove the transformer.

  7. Philips 22PFL3504D Power Transformer Replacement: paso 7, imagen 1 de 3 Philips 22PFL3504D Power Transformer Replacement: paso 7, imagen 2 de 3 Philips 22PFL3504D Power Transformer Replacement: paso 7, imagen 3 de 3
    • Turn the board component side up and remove the transformer

    • Here is the board with the transformer removed.

    • Always make sure the the replacement parts are identical in size and contacts. I like to compare the old (right) to the new (left)

  8. Philips 22PFL3504D Power Transformer Replacement: paso 8, imagen 1 de 3 Philips 22PFL3504D Power Transformer Replacement: paso 8, imagen 2 de 3 Philips 22PFL3504D Power Transformer Replacement: paso 8, imagen 3 de 3
    • Insert the new transformer gently through the holes on the board.

    • Turn the logic board component side down, identify the transformer contacts. Apply some flux to the contacts.

    • Solder the new transformer in place. The brownish residue is from the flux. The board can be cleaned with isopropyl alcohol after the solder repair.

  9. Philips 22PFL3504D Power Transformer Replacement: paso 9, imagen 1 de 2 Philips 22PFL3504D Power Transformer Replacement: paso 9, imagen 2 de 2
    • Ensure the all connections have been soldered and no accidental solder bridge was created. If it all looks satisfactory, reassemble the TV

    • After the repair and reassembly. hopefully this is what you will see. A perfect picture and no disturbing humming

Conclusión

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

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oldturkey03

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2 comentarios

What was the problem with the tv? How did you know that the problem was the transfomer?

Nalon - - Contestar

The transformer had a “bad" humming sound, explained in the text ;-)

Fredrik Närstrand -

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