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E-MU® Vintage Keys 3:  Broken Control Pots
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The Front Panel PCB is now out of the E-MU Vintage Keys synthesizer and our task is to remove and replace a broken volume pot.

Four Controller Pots of the E-MU Vintage Keys

The four cables that tie the Panel board to the Main board are long enough that you can work on both sides of the Panel board without unplugging it.

E-Mu Vintage Keys Panel PCB

But to make soldering easier, you can unplug the cables where they connect to the Main board (right).

Interconnect Cables
Main Board Connectors

In either case, while handling the Panel board, be gentle with the white and green wires going to the LCD backlight (right).

LCD Backlight Wires

Here you see the Volume pot's solder points.

Each pot has four terminal pins and two mounting tabs for a total of six solder points.

Volume Pot Solder Points

Here you see the VINTAGE KEYS REPLACEMENT POT we installed.

All the panel pots, except the data wheel, use the same part:  a 10 kilo-ohm, linear-taper pot.  (One of its four solder pins is a dummy terminal).

 

Now, put everything back together and put your E-MU Vintage Keys back in service!

Newly Replaced Volume Pot

E-MU® Vintage Keys
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