The Oxley State School Keyboard had been lying around home for a while waiting to be fixed. Turned out it had two problems. A dead power pack. Confirmed dead with multimeter followed by visual inspection showing a wire broken off right where it came out of the transformer. A replacement (12V 1A) plug pack was located in the junk box. The keyboard connector is wired -ve tip which is unusual except for keyboards. (The Roland at church is also negative tip). The replacement plug pack had just bare wires so we cut the wires and connector off the old pluch pack and joined them onto the new one. This worked a treat until we bumped the keyboard and it shut down. This sensitivity was traced to the DC input plug where the smallest touch would cause the keyboard to loose power.
Chris took the bottom off the keyboard and visual inspection showed that the solder had cracked where the connector contacts were soldered to the printed circuit board. He re-soldered it and it came back to life. - Job done
In this picture, the keyboard is upside down. I am holding the bottom of the keyboard. the keys are facing down under where Chris is soldering.
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