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start | ws-1 & clones | programming | clock | mods | famous presets
Original programmer
Roland WS-1
The CR-78 can be programmed with a Roland WS-1 unit. It is no longer in production.
Hook up the WS-1 to the EXT CLOCK and the WRITE sockets at the back.
So how does it function?
You first select most of the settings on the front panel of the CR-78.
Make sure the CR-78 is not running.
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Choose the PROGRAM RHYTHM by pressing the corresponding yellow button. Clear the rhythm, by setting the switch to ALL and press the CLEAR button. Set the switch to MEMORY W/D (Write/Delete) Then you select an Instrument you want to program with the instrument selector. When you turn the knob, the chosen instrument sounds. Each rhythm can remember 4 different instruments. The instruments are chosen by you. You then press the Start/Stop button. This sets the sequencer pointer to the first step of the rhythm and arms the rhythm for recording the selected instrument. The TEMPO LED should light up. It lights up at the start of each Bar. When the LED does not light up, the sequencer position is not at the start of the Bar. Solution: first press STOP on the CR-78, then stop the external clock. This makes the CR-78 reset to the first step of the Bar, when you press START again. The CR-78 then patiently waits for the signals of the WS-1. |
Go to the WS-1
Use the STEP SELECTOR to decide how many steps are in between the sound of every instrument.
You can choose 8, 12, 16, 24 or 48 steps between each instrument sound.
What does this mean?
- The CR-78 can record 2 Bars of 48 steps each. That is the resolution for each Bar.
- a Bar with a 4/4 Timing is divided in 4 times 12 steps (makes 48 steps total).
- a Bar with a 3/3 Timing is divided in 3 times 16 steps (makes 48 steps total).
| one Bar (48 step resolution) | ||||||||||||||||||||||||||||||||||||||||||||||||
| TEMPO LED | ||||||||||||||||||||||||||||||||||||||||||||||||
| 4/4 | ||||||||||||||||||||||||||||||||||||||||||||||||
| 3/4 | ||||||||||||||||||||||||||||||||||||||||||||||||
What the WS-1 does is, when you press the white NOTE button on the panel:
- first it sends an S-Trigger (literally an on/off switch) to the WRITE Socket
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and then sends the amount of 5 Volts trigger signals you choose for the STEP SELECTOR to the EXT CLOCK Socket.
this makes the CR-78 sequencer advance this exact amount of steps.
When you press the white REST button:
- the WS-1 only sends the amount of 5 Volts trigger signals to the EXT CLOCK Socket to advance the sequencer.
That's all.
DIY
You could basically to the same thing, without the WS-1. The only signals you need to generate are:
- a 5 Volts Gate signal for the EXT CLOCK Socket.
- an on/off switch signal for the WRITE Socket.