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VPM-1
VOLUME PEDAL MOD FOR ERNIE BALL VP JR
Assembly Manual
© 2020 ZEPPELIN DESIGN LABS. NO PART OF THIS DOCUMENT MAY BE REPRODUCED WITHOUT WRITTEN PERMISSION FROM THE AUTHOR. ZEPPELIN DESIGN LABS TAKES
NO RESPONSIBILITY FOR ANY DAMAGE OR HARM THAT MAY COME TO ANYONE OR ANYTHING THROUGH THEIR PRODUCTS.
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INTRODUCTION ...................................................................................................... 3
ABOUT THE ERNIE BALL VOLUME PEDAL ............................................................... 3
HOW THE VPM-1 WORKS ................................................................................... 4
WHAT’S IN THE BOX ................................................................................................ 6
WHAT YOU WILL NEED .......................................................................................... 11
TOOLS ............................................................................................................. 11
SUPPLIES .......................................................................................................... 11
POPULATING THE PRINTED CIRCUIT BOARDS ........................................................... 11
MAIN BOARD ................................................................................................... 14
SENSOR BOARD ............................................................................................... 31
STEREO UPGRADE BOARD ................................................................................ 34
EXPRESSION UPGRADE BOARD ......................................................................... 37
PREPARING THE ERNIE BALL VP JR ............................................................................ 40
PUTTING IT ALL TOGETHER ..................................................................................... 42
CHASSIS .......................................................................................................... 42
POTENTIOMETER BLOCK ................................................................................... 45
MAGNET ......................................................................................................... 47
MAIN BOARD & CHASSIS ................................................................................. 49
SETTING UP STEREO CONFIGURATION ................................................................... 51
CALIBRATING THE VPM-1 ........................................................................................ 53
WARNING:
THIS IS NOT A BEGINNERS SOLDERING PROJECT. THE COMPACT SIZE AND
SMALL FOOT PRINTS OF THE COMPONENTS ON THE VPM-1 CIRCUIT BOARD CAN BE
DIFFICULT TO SOLDER. WE HIGHLY RECOMMEND COMPACT CIRCUIT BOARD SOLDERING
EXPERIENCE AS A PREREQUISITE FOR THIS KIT. ZEPPELIN DESIGN LABS IS NOT RESPONSIBLE
FOR THE SUCCESS OF YOUR KIT.
