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Roland E-X20 Service Notes page 10

Arranger keyboard

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Dec. 2017
Test 3: Function Buttons Inspection
When switch to the Test 3, the LCD will display: SHIFT
Press the [+] button can start the buttons inspection.
In the process of buttons inspection, the LCD will indicate the next button number that need to check.
Please check the buttons strictly in the order from left to right, as the following figure:
fig.test-3.eps
When the current button check is passed, the piano would sound the prompt tone "Clave". Otherwise, the piano would sound the prompt tone "Cymbal".
When all of the button checks are passed, the LCD will display: PASS
At this time, you should rotate the dial anticlockwise until the number exceeding 10, and then rotate it clockwise to return to 0, which indicate this test is passed.
When all of the function buttons and the dial checking are passed, the LCD will display: PASS
At this time, you can press and hold [START/STOP] button then press [+] button to enter into Test 4.
* If the current function button check is failed, the test would stop at the current position until the current error to be solved.
Test 4: Keys Inspection
When switch to the Test 4, the LCD will display: K61-C7
* K61 is the key number (the last key), C7 is the key name.
Press the [+] button can start the keys inspection.
In the process of keys inspection, the LCD will indicate the next key which you need to check. For example: K60-B6, it means you should check the second key
(From right to left): B6.
You should check the keys strictly in the order from right to left with medium velocity(40–90). If the key number and the velocity level that you pressed are right,
the piano would sound the prompt tone "Clave" and the PC will receive a midi data (NOTE ON event) from the piano. If the key number is right but the velocity
level is wrong, the piano would sound the prompt tone "Metronome2". If the key number is wrong, the piano would sound the prompt tone "Cymbal".
The keys inspection order as the following figure:
fig.test-4.eps
When all of the key checks are passed, the LCD will display "PASS".
At this time, you can press and hold [START/STOP] button then press [+] button to enter into Test 5.
* If the current key check is failed, the test would stop at the current position until the current error to be solved.
* Once starting the key inspection (after pressing the key: C8), you must finish this test item before you switch to other test item.
* If you can choose the USB Audio Device in a PC MIDI software (e.g. MIDI-OX), and could also receive MIDI data from the piano, it means the USB jack is working. Also, you
can judge whether the velocity level are in normal range by checking the received MIDI notes.
10
E-X20,
E-X20A

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