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Logitech S-LG3 Subwoofer Logitech Soundman Speaker Capacitance Replacement

Wat je nodig hebt

  1. Logitech S-LG3 Subwoofer Logitech Soundman Speaker Capacitance Replacement, Open up the casing: stap 1, afbeelding 1 van 3 Logitech S-LG3 Subwoofer Logitech Soundman Speaker Capacitance Replacement, Open up the casing: stap 1, afbeelding 2 van 3 Logitech S-LG3 Subwoofer Logitech Soundman Speaker Capacitance Replacement, Open up the casing: stap 1, afbeelding 3 van 3
    • Before all unplug the power supply from the wall socket to make sure the appliance is shut down.

    • Remove the 8 screws from the rear panel with a #01 philips screw driver

    • Keep the screw drivers aside and smoothly separate the two halves of the casing.

  2. Logitech S-LG3 Subwoofer Logitech Soundman Speaker Capacitance Replacement, Detach the main board from the rear panel: stap 2, afbeelding 1 van 3 Logitech S-LG3 Subwoofer Logitech Soundman Speaker Capacitance Replacement, Detach the main board from the rear panel: stap 2, afbeelding 2 van 3 Logitech S-LG3 Subwoofer Logitech Soundman Speaker Capacitance Replacement, Detach the main board from the rear panel: stap 2, afbeelding 3 van 3
    • Inspect the inside of the casing and check the visual aspect of the capacitors. Wear glasses and gloves in case of leaking electrolyte from capacitors.

    • Gently unsnap the connection pins on the right of the picture.

    • Smoothly unsnap the connector of the power supply attached to the main board. Don't try to pull these connectors : you may damage the power chord and get more repairs to do.

  3. Logitech S-LG3 Subwoofer Logitech Soundman Speaker Capacitance Replacement, Separate the main board from the casing: stap 3, afbeelding 1 van 3 Logitech S-LG3 Subwoofer Logitech Soundman Speaker Capacitance Replacement, Separate the main board from the casing: stap 3, afbeelding 2 van 3 Logitech S-LG3 Subwoofer Logitech Soundman Speaker Capacitance Replacement, Separate the main board from the casing: stap 3, afbeelding 3 van 3
    • Remove the 5 screws binding the main board to the casing. Use a #01 Philips screw driver.

    • Remove the 2 screws that binds the heat sink to the metal plate of the casing. Use a #01 Philips screw driver.

    • The 2 screws of the heat sink might be sealed with glue. Use a cutter to scracth and completely remove the glue.

  4. Logitech S-LG3 Subwoofer Logitech Soundman Speaker Capacitance Replacement, Release the main board: stap 4, afbeelding 1 van 3 Logitech S-LG3 Subwoofer Logitech Soundman Speaker Capacitance Replacement, Release the main board: stap 4, afbeelding 2 van 3 Logitech S-LG3 Subwoofer Logitech Soundman Speaker Capacitance Replacement, Release the main board: stap 4, afbeelding 3 van 3
    • Make sure you have removed the heat sink of subwoofer drivers and the 7 screws.

    • Unsnap at least one connector that links the main board to the woofers.

    • Spot the capacitor that you will need to change. Spot the shape of the top of the capacitor : if in curved shape it means the capacitor must be changed asap. Sometimes there is no visible damage of the capacitor but the replacement of the capacitor will still fix the sizzling sound.

  5. Logitech S-LG3 Subwoofer Logitech Soundman Speaker Capacitance Replacement, Replace the capacitor: stap 5, afbeelding 1 van 2 Logitech S-LG3 Subwoofer Logitech Soundman Speaker Capacitance Replacement, Replace the capacitor: stap 5, afbeelding 2 van 2
    • Make sure you have spotted the minus sign printed on the side of the capacitor to avoid any error in the placement of the spare capacitor. If the pins of the new capacitor are not soldered in the right pin holes it will result in severe damages.

    • Use a soldering iron to remove the dysfunctional capacitor. Use desoldering braid and clean the PCB if you see electrolytic leakage.

    • With the soldering iron solder the spare capacitor to the main board with the negative terminal in the same hole as the previous capacitor.

    • With a cutting plier cut the terminals of the capacitor as close as possible to the main board. This will avoid any risk of circuit shortening and new damage to the subwoofer.

  6. Logitech S-LG3 Subwoofer Logitech Soundman Speaker Capacitance Replacement, Apply thermal paste before final step: stap 6, afbeelding 1 van 3 Logitech S-LG3 Subwoofer Logitech Soundman Speaker Capacitance Replacement, Apply thermal paste before final step: stap 6, afbeelding 2 van 3 Logitech S-LG3 Subwoofer Logitech Soundman Speaker Capacitance Replacement, Apply thermal paste before final step: stap 6, afbeelding 3 van 3
    • Don't forget this step to avoid any thermal damage that may lead to destruction of components or injuries.

    • Apply some thermal grease to any surface that interface with the heat sink.

Conclusie

Please follow the previous steps in the reverse order to finish this fixing and enjoy listening to clean sound again.

Één andere persoon heeft deze handleiding voltooid.

David

Lid sinds: 05/23/14

1.523 Reputatie

5 handleidingen geschreven

Één opmerking

The only difficult part is putting the thing back together.

dark circ - Antwoord

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