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Instructions are printed on the back of the unit. Click the image to read.
"classic electronic musical instrument by Mattel called Synsonics Drums (circa
1982). This is a model 5281. It synthesizes the percussive sounds of the cymbal,
snare drum, 2 different tom tom drums, and a bass drum. Additionally, three
memories are provided to allow the storage of drum patterns. The Synsonics Drums
is powered by 6 C-cell batteries and has a 9 volt power supply input. A
technique called multiplexing is used several times in the Synsonics Drums. In
multiplexing, one line or group of lines is able to carry signals for use by
different parts of the systems at different times. Some of the features:
Headphone jack RCA jacks for stereo output to an external amplifier LED
indicators Record and playback, 3 memory locations Snare, cymbal, tom tom, bass
drum and other sounds Use fingers or drum sticks A technical manual is included
that contains the internal schematic, parts list and troubleshooting guide. The
unit is used, but fully functional and just requires 6 batteries or an external
9 volt power source."