Yamaha CS-5

The CS-5 may be a lower-end CS series synthesizer from Yamaha but it still has all you need for vintage analog bass and synth effects at a very affordable price! The CS-5 is a single-oscillator monophonic analog synthesizer with classic filter, envelope and modulation controls. It features 37 full-sized keys, a multi-mode 12 dB/Oct resonant filter, an LFO with sample and hold, and an external audio input you can route through the VCF or VCA sections. The CS-5 is a very flexible and modulate-able analog synth that is quite capable of warm analog bass and bubbly synth effects! The absence of patch storage, MIDI and velocity are just reminders that the CS-5 is old - it's Vintage! It's been used by Siouxsie and the Banshees, Depeche Mode, Richard Barbieri and the Sneaker Pimps.
- Specifications
- Polyphony - Monophonic
- Oscillators - 1 VCO with pulse or sawtooth waveforms and noise-gen
- LFO - Yes, with sine, sawtooth, sample and hold
- Filter - 1 filter: 12dB/oct High pass or Low pass; 6dB/oct band-pass
- Effects - None
- Keyboard - 37 keys
- Memory - None
- Control - CV / Gate
- Date Produced - 1978-83
- Websites of Interest
- Resources & Credits
Images from Mark Smith.
Errors or Corrections? Send them here.

Firstly on the top right hand side (amplifier section) there is an initial level control - that is probably all the way up - make sure that is at zero as this is what produces the constant drone.
Secondly make sure the EG depth control just below the initial level is at maximum as this allows the envelope to trigger the notes. Now when you play it you can hear the notes accroding to the way you have set the amplifier section and the constant drone should be gone.
Let me know if this works for you.