May. 2008 DD-7 6. Adjust the MODE control to the 200 ms position. Verify that waveform output stops. 5. DA Check (EXP [Expression Pedal] Check) fig.DD-7-wave-2.eps_75 The CHECK LED goes dark. Make the connections shown below to the INPUT and OUTPUT jacks on the DD-7, using the settings indicated. INPUT A: Input a rectangular wave at 400 Hz, 800 mVp-p. INPUT B: Input a rectangular wave at 400 Hz, 800 mVp-p. OUTPUT A: Connect the oscilloscope. OUTPUT B: Connect the oscilloscope. 1. Adjust the MODE control to the 800 ms position. Set the oscilloscope to 500 mV/DIV, 1 ms/DIV, and coupling: DC. Verify that the CHECK LED is lighted up orange. 2. Connect the EV-5 to the TEMPO/EXP jack.
Verify that the CHECK LED is lighted up red. fig.DD-7-wave-1.eps_75 7. Adjust the MODE control to the 800 ms position. Verify that waveforms like those shown in the figure below are output. The CHECK LED lights up orange. fig.DD-7-wave-1.eps_75 3. Depress the heel of the EV-5 pedal all the way. fig.DD-7-wave-2.eps_75 8. Adjust the MODE control to the 3,200 ms position. Verify that waveform output stops. The CHECK LED goes dark. fig.DD-7-wave-2.eps_75 4. Depress the toe of the EV-5 pedal, and stop when the intermediate position is reached. fig.DD-7-wave-3.eps_75 Verify that the CHECK LED is lighted up green. 13