For Owners of any model of Technics Piano
Technics SX-PX 74M Repair Help Needed
im owner of a Technics SX-PX 74M E-Piano wich has issues with the keystroke dynamic.
The notes D, fis and ais are allways played on maximum volume. This occures on all octaves.
Playing the Piano from an external MIDI Keyboard and Demo Tracks are fine.
All affected keys share the same ROW Lines in the Keyboard Matrix.
It may be a issue with the soldering or with the main ciruit on the keyboard pcb.
Can anyone help me to find a spare semiconductor called M7U042-016 for this Keyboard?
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