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Repairing LG 17LX1R LCD Television Power board

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  1. Repairing LG 17LX1R LCD Television Power board, Repairing LG 17LX1R LCD Television Power board: paso 1, imagen 1 de 3 Repairing LG 17LX1R LCD Television Power board, Repairing LG 17LX1R LCD Television Power board: paso 1, imagen 2 de 3 Repairing LG 17LX1R LCD Television Power board, Repairing LG 17LX1R LCD Television Power board: paso 1, imagen 3 de 3
    • This is the LG 17LX1R that will no longer turn on.

    • Remove the cover from the stand by.

    • Press down on the two tabs. The cover should come off easily.

    • Remove the four screws that hold the stand assembly to the chassis.

  2. Repairing LG 17LX1R LCD Television Power board: paso 2, imagen 1 de 3 Repairing LG 17LX1R LCD Television Power board: paso 2, imagen 2 de 3 Repairing LG 17LX1R LCD Television Power board: paso 2, imagen 3 de 3
    • Remove the four Phillips head screws that attach the stand to the chassis.

    • Remove the eight Phillips screws that hold the back to the chassis. Once the screws are removed, the back will simply snap off.

    • Remove the metal shield. It is fastened with six Phillips screws.

  3. Repairing LG 17LX1R LCD Television Power board: paso 3, imagen 1 de 3 Repairing LG 17LX1R LCD Television Power board: paso 3, imagen 2 de 3 Repairing LG 17LX1R LCD Television Power board: paso 3, imagen 3 de 3
    • After the shield is removed, the power board and the main board are visible.

    • Power Board

    • Main Board

    • Fuse

    • Check all capacitors for blown tops and/or leakage.

    • Thoroughly inspect the boards. Brown discoloration around Diode D102 is evidence of a short circuit, possibly a blown component.

    • Disconnect all connectors from the power board

    • Remove the four screws that mount the power board to the chassis.

  4. Repairing LG 17LX1R LCD Television Power board: paso 4, imagen 1 de 3 Repairing LG 17LX1R LCD Television Power board: paso 4, imagen 2 de 3 Repairing LG 17LX1R LCD Television Power board: paso 4, imagen 3 de 3
    • These are the chassis with the power board removed.

    • Discoloration of the back side of the power board is a sign of a faulty diode.

    • Unsolder the diode from the power board.

    • Replacement diode

  5. Repairing LG 17LX1R LCD Television Power board: paso 5, imagen 1 de 3 Repairing LG 17LX1R LCD Television Power board: paso 5, imagen 2 de 3 Repairing LG 17LX1R LCD Television Power board: paso 5, imagen 3 de 3
    • Here is the removed diode. Description on the diode reads LT526 IN4007.

    • Solder the new diode onto the power board. Use a pair of tweezers or hemostat to hold the diode in place while soldering.

    • Once the diode is replaced, clean the board with isopropyl alcohol to get rid of any debris or old flux.

    Include many telivisions and user manual

    Raz Media - Contestar

  6. Repairing LG 17LX1R LCD Television Power board: paso 6, imagen 1 de 1
    • Device powers on and has audio and video after the repair.

Conclusión

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

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oldturkey03

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Very nice good job

Bhullana - Contestar

good job my frend

youcef - Contestar

great idea thats perfect

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