Casio CTK-501 Battery Connection Replacement
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If the battery area has been damaged you might have to repair the connection to the circuit board that collects all the power for the keyboard.
- Author: Jimmy Winne
- Difficulty: Moderate
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Use a #2 Phillips screwdriver to remove the twenty-seven 12 mm screws from the dark gray bottom panel.
Flip the entire keyboard so the keys face up, and be careful not to let the bottom drop.
Flip the top half of the keyboard and set onto the bottom half with the internal parts facing up.
Plug in the soldering iron and set it somewhere safe where it can't catch anything on fire.
Unscrew the top green circuit board with black and red wires running into it.
Heat up the solder covering the end of the wires connected to the circuit board. Once the solder melts, remove the wires from the circuit board.
Melt new solder with your soldering iron, then apply it over the tip of the wire touching the circuit board.
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