A service from a synth tech would have it working again. Note:Crash & Clap trigger buttons do not function - those sound do not respond to midi note in. Ultra rare!
Sequential Circuits Drumtraks vintage drum machine Photocopied Operation Manual
Sequential Circuits DrumTraks Model 400 Vintage Drum Machine SCI DrumTracks
Sequential Circuits SCI TOM Digital Cartridge - 16 Drum Machine Kits In One Cart
Sequential Circuits SCI TOM Analogue Cartridge - 16 Drum Machine Kits In 1 Cart
Sequential Circuits SCI TOM 2 x Sound Cartridges - 32 Drum Machine Kits 2 Carts
