Difficulty

Moderate

Steps

8

Time Required

                          30 minutes            

Sections

1

  • USB charging port
  • 8 steps

Flags

2

In Progress

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  • BackSONY WH-CH700N bluetooth headphones

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What you need

Step 1

              Remove the foam pad               
  • Remove the foam pad by pulling up on the foam until it clears the groove.
  • Working around the foam, carefully slip it off to reveal the screws.

Remove the foam pad by pulling up on the foam until it clears the groove.

Working around the foam, carefully slip it off to reveal the screws.

1024

Step 2

              Open the headphones               
  • Remove the 4 screws holding the speaker enclosure to the main body.
  • Do not fully lift off as the speaker is still connected to the board.

Remove the 4 screws holding the speaker enclosure to the main body.

Do not fully lift off as the speaker is still connected to the board.

Step 3

              Remove the speaker (L) and desolder connections               
  • Desolder the speaker to fully remove it.
  • Desolder the mic and speaker conncetions
  • Desolder the battery connector.

Desolder the speaker to fully remove it.

Desolder the mic and speaker conncetions

Desolder the battery connector.

Step 4

              Remove the the board               
  • Remove one Phillips screw, holding down the board
  • The board is also held in by clips, so use a prying tool or just fingers to pull upp on the board to release it.

Remove one Phillips screw, holding down the board

The board is also held in by clips, so use a prying tool or just fingers to pull upp on the board to release it.

Step 5

              Board view               
  • You successfully removed the main board.
  • You can see the damaged USB connector

You successfully removed the main board.

You can see the damaged USB connector

Step 6

              Apply protective tape               
  • Apply Kapton tape to ensure protect the plastic components like, switches and the jack conncetor.

Apply Kapton tape to ensure protect the plastic components like, switches and the jack conncetor.

Step 7

              Apply flux               
  • Apply flux to the top pins and the mounting pins (underside) to help solder flow.

Apply flux to the top pins and the mounting pins (underside) to help solder flow.

Step 8

              Desolder the USB connector               
  • Grab the connector with tweezers and apply heat from the mounting pins’ side (bottom).
  • Be careful with the hot air station and position the board in a way that you do not burn the jack connector while heating up the port.
  • 320 degrees (Celsius) with 20-30% airflow is more than enough to get the connector off.
  • Clean the pads with a solder wick.

Grab the connector with tweezers and apply heat from the mounting pins’ side (bottom).

Be careful with the hot air station and position the board in a way that you do not burn the jack connector while heating up the port.

320 degrees (Celsius) with 20-30% airflow is more than enough to get the connector off.

Clean the pads with a solder wick.

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

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                                      with 1 other contributor 

                    honakrisi                     

Member since: 01/28/2020

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