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M-Audio® Keystation 88es 2:  Replacing the USB Jack
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The Keystation's Input/Output Printed Circuit Board is now completely disconnected.

In this photo, the KEYBOARD assembly is removed, but it wouldn't have to be for this repair.

Remove the PC Board by taking out the five, gold screws that attach it to the bottom shell.

I/O Circuit Board

Here's the I/O Board removed from the Keystation.

I/O Board Removed

Here's the foil side of the board.

Underside of I/O Board

Here's a close-up of the six solder points that hold in the USB jack.

The two large solder points simply hold the jack's frame to the circuit board and aren't part of an electrical circuit.

The four, smaller points connect to the jack's electrical pins.

De-solder the six solder points, swap in a new USB jack, and re-solder the six points.

USB Jack Connections

Here's the new USB jack installed in the reassembled, M-Audio Keystation 88.

Finished Job

M-Audio® Keystation 88es
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