MATRIXSYNTH: Jupiter-4 accu/ battery replacement


Tuesday, August 17, 2010

Jupiter-4 accu/ battery replacement

via Marko of Retrosound.de
(click for more pics)

"I replaced the old Ni/Cd accu with a new lithium cell + battery-holder and remove the resistor R2 and R3 for a long synth-life."

inside a Roland Jupiter-4

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