Sep. 2001 fig.LCD13 Confirm these three points. A) Using an oscilloscope, observe that a short wave is obtained from OUTPUT . B) Since output mute is automatically made ‘On/Off’, make sure that it is on. 2) Pressing further (maximum value) displays “***” on the right display. C) Confirm that the level changes when the OUTPUT knob is turned. fig.LCD20 fig.LCD10 or fig.LCD14 Oscilloscope : 1.0 V/DIV, 0.5 ms/DIV Mute = Off Mute = On fig.1 3) Finally, returning the pedal forward (minimum value) displays “***” on the left display, and the inspection for that pedal is complete. fig.LCD11 or fig.LCD15 After the EXP PEDAL inspection completes, it will automatically proceed to the next inspection. 7.
Battery fig.2 fig.LCD16 The voltage of the memory backup battery is displayed. To proceed to the next inspection, press the [EXIT] button. 8. MIDI IN/OUT fig.LCD18 Connect the MIDI IN connector and the MIDI OUT connector with a MIDI cable. D) Confirm that a same waveform as that from OUTPUT is obtained from Phones. “No Connect” is displayed if the connectors are not connected with a MIDI cable. E) Confirm that a short wave is obtained from Send and that mute is effective. If the connectors are properly connected, “Verify OK !” is displayed. After the MIDI IN/OUT inspection completes, it will automatically proceed to the next inspection. Oscilloscope :
1.0 V/DIV, 0.5 ms/DIV Mute = Off Mute = On fig.LCD17 9. Note : Check both L(MONO) and R. OUTPUT D/A Also, when the OUTPUT jack is used for a single channel, the L and R signals will be internally mixed, therefore, empty plugs must be inserted in the R channel for L(MONO) channel measurement and in the L(MONO) channel for R channel measurement, respectively. fig.LCD19 16