Alesis SR-16 – Not working

Got a Alesis SR-16 Drum computer from a friend of mine. The machine didn’t work, it only show 8 blocks on the display. Revision: Rev D p/n: 9-40-1034   Let’s find the problem First I tested the voltage regulators VR1 (7805) and VR5 (7905), they both outputing the right voltage levels (5V and -5V). Next […]

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