Introduction

This is a television/PC monitor that did not work after a storm. I expected to replace a few capacitors, but it only needed a single diode at the cost of twenty-nine cents and about an hour of labor. A new power board for this TV would have cost somewhere around $80.

  1. This is the LG 17LX1R that will no longer turn on.
    • 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.

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  2. Remove the four Phillips head screws that attach the stand to the chassis.
    • 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.

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    • 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, possible blown component.

    • Disconnect all connectors from the power board

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

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    • 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

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    • 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 - Réponse

    • Device powers on and has audio and video after the repair.

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Conclusion

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

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oldturkey03

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Very nice good job

Bhullana - Réponse

good job my frend

youcef - Réponse

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