JD800
PRESS SIMULTANEOUSLY
DATA TRANFER + PAGE UP +YES + POWER
When it is inoperative:
Refer to [3] 1 and 8 in the Troubleshooting section
(p.38, 39).
When it is inoperative:
Refer TO [2] 9 in the Troubleshooting section (p.37).
[11] Keyboard Test
1.Press [NUMBER 3] while holding down [EXIT].
2. If the correct key name and the velocity are displayed when the key is hit. the test has been successfully completed.
When it is inoperative:
Refer to [2) 2, [3] 1 and 6, and [4] 2 in the
Troubleshooting section (p.34 - 40).
[12) MIDI Test
1.Press [NUMBER 4] while holding down [EXIT].
2.Connect a single cable to both the MIDI IN and the MIDI OUT connectors on the rear panel.
3.Check that the "OK" message is displayed.
4.Disconnect the cable and check that the display changes from "OK" to "NG."
When it is inoperative:
Refer to [4] in the Troubleshooting section (p.40).
[13] Output Test
1.Connect the cable to each MIX OUT L/R and DIR OUT L/R jacks on the rear panel, and observe each signal by an instrument such as an oscilloscope.
2.Press [NUMBER 5] while holding down (EXIT].
3.Confirm that the voice is output only through MIX OUT L.
4.Press [CURSOR R].
5.Check that the voice is output only through MIX OUT R.
6. Press [CURSOR R].
7.Check that the voice is output only through DIR OUT L.
8.Press [CURSOR R].
9.Check that the voice is output only through DIR OUT R.
[14] Effect Test
1.Press [NUMBER 6] while holding down [EXIT].
2.Hold down any key on the keyboard for approximately one second.
3.If the sound comes out clearly, the test has been successfully completed.(Make sure that noise is not mixed with the sound.)
When it is inoperative:
Refer to [3] 1, 3 and 4 in the Troubleshooting
section (p.38, 39).
[15] D/A Adjustment
1.Use an instrument such as an oscilloscope to observe the output waveform of MIX OUT L on the rear panel.
2.Press [NUMBER 7] while holding down [EXIT].
3.A sine wave with a relatively low sound volume should be output. Make it a smooth sine wave by adjusting VR1 on the Jack aboard.
| [16] Exit Test Mode |
1.Press [NUMBER 8] while holding down [EXIT].
2.Press [INC/YES] when the display below is shown.
NOTE:
If operation does not leave the test mode even when the above steps are performed, turn the power switch off briefly, then back on. This returns operation to the Multi mode.
(P.38, 39).