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LG Vu CU920 Microphone Replacement

Introducción

This guide will show you how to disassemble the LG Vu CU920 to replace a broken microphone. You will need to keep track of small screws, remove small components from the motherboard, and solder/unsolder a component

Qué necesitas

  1. LG Vu CU920 Microphone Replacement, Battery: paso 1, imagen 1 de 3 LG Vu CU920 Microphone Replacement, Battery: paso 1, imagen 2 de 3 LG Vu CU920 Microphone Replacement, Battery: paso 1, imagen 3 de 3

    • Remove the back cover by firmly pressing against the indent on the back panel. Slide the cover downward and off the phone.

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  2. LG Vu CU920 Microphone Replacement: paso 2, imagen 1 de 2 LG Vu CU920 Microphone Replacement: paso 2, imagen 2 de 2

    • Remove the battery by placing your fingernail or an opening tool at the bottom edge of the battery and lift it out.

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  3. LG Vu CU920 Microphone Replacement, Motherboard: paso 3, imagen 1 de 1

    • Remove the two 3.5 mm screws above the battery port with a Phillips #00 screwdriver.

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  4. LG Vu CU920 Microphone Replacement: paso 4, imagen 1 de 2 LG Vu CU920 Microphone Replacement: paso 4, imagen 2 de 2

    • Pull out the antenna to reveal a third screw.

    • Remove the 3.5 mm screw with a Phillips #00 screwdriver.

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  5. LG Vu CU920 Microphone Replacement: paso 5, imagen 1 de 3 LG Vu CU920 Microphone Replacement: paso 5, imagen 2 de 3 LG Vu CU920 Microphone Replacement: paso 5, imagen 3 de 3

    • Using a plastic opening tool, gently pop up the plastic tab.

    • Use the plastic opening tool to pry up the edges of the plastic casing. You will then be able to slide it around the edge to dislodge it.

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  7. LG Vu CU920 Microphone Replacement: paso 6, imagen 1 de 2 LG Vu CU920 Microphone Replacement: paso 6, imagen 2 de 2

    • Remove the plastic case to reveal the motherboard.

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  8. LG Vu CU920 Microphone Replacement: paso 7, imagen 1 de 1

    • Use a spudger to disconnect the cables from the motherboard.

    • The following steps will detail how to detach the cables from the connectors.

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  9. LG Vu CU920 Microphone Replacement: paso 8, imagen 1 de 3 LG Vu CU920 Microphone Replacement: paso 8, imagen 2 de 3 LG Vu CU920 Microphone Replacement: paso 8, imagen 3 de 3

    • Gently lift the ZIF connector (black tab) holding the ribbon cable in place. When it is in the upright position, remove the cable from the back side.

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  10. LG Vu CU920 Microphone Replacement: paso 9, imagen 1 de 1

    • Remove the jack attached to the red and blue wires by carefully pulling it upward from the motherboard.

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  11. LG Vu CU920 Microphone Replacement: paso 10, imagen 1 de 1

    • Remove the round jack connected to the black cabel by carefully prying it up from beneath with a spudger or plastic opening tool.

    • This jack snaps on, so there will be more resistance than there was with the previous jack.

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  12. LG Vu CU920 Microphone Replacement: paso 11, imagen 1 de 2 LG Vu CU920 Microphone Replacement: paso 11, imagen 2 de 2

    • Remove the remaining three ribbon cables by gently lifting them by the ends, opposite of the cables, with a plastic opening tool or spudger until they pop out.

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  13. LG Vu CU920 Microphone Replacement: paso 12, imagen 1 de 3 LG Vu CU920 Microphone Replacement: paso 12, imagen 2 de 3 LG Vu CU920 Microphone Replacement: paso 12, imagen 3 de 3

    • Remove the motherboard by gently prying it up with a spudger from the charging port.

    • Be careful not to yank the camera's ribbon cable as you lift the board. Make sure that it is in line with its hole in the motherboard.

    • Once the board has been lifted, remove it by pulling it away from the connected edge.

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  14. LG Vu CU920 Microphone Replacement, Microphone: paso 13, imagen 1 de 1

    • Unsolder the microphone located at the top right corner of the motherboard near the silver jack.

    • Solder in a replacement microphone.

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Conclusión

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

Autor

con 2 otros colaboradores

Gregory Davis

Miembro Desde 04/17/13

48 Reputación

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Equipo

Cal Poly, Team 8-57, Johann Spring 2013 Miembro de Cal Poly, Team 8-57, Johann Spring 2013

CPSU-JOHANN-S13S8G57

4 Miembros

7 Guías creadas

Un comentario

The microphone is located on a flex cable with the lower and side keys. The component shown is the external antenna connector, hence the location next to the internal antenna connector. Source: I work in cell phone repairs, soldering, and electrical circuitry.

Michael Benesch - Contestar

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