Vintage Simmons Drums (UK) Users Group

If your SDS7 is working fine, you are a lucky man ;-). There is only 1 battery to change. Open the case on the right side by removing the right front panel (the one with the incrementor, buttons and display). It is only 4 screws. Now pull out the very right board, containing the rom, ram and- the battery. Pray, that the battery has had no leakage and your board is still ok. Replace with NiCd, not Mh, Voltage is 3,6V.
Michael 


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