Roland JD-XA - Analog Adjustment Mode

32
Jul. 2015 JD-XA
Analog Adjustment Mode
Items Required
• Oscilloscope
• Tester (measurable to 10mV)
Entering the Analog Adjustment Mode
Hold down 01, 03 and 04 and switch on the power.
* Continue to hold down the three buttons above until the version is displayed on
the screen.
Quitting the Analog Adjustment Mode
Switch off the power.
Skipping Test Items
This is the same as Skipping Test Items (p. 24).
Test Items
1. Version (p. 32)
2. OSC Adjust (p. 32)
3. Pulse Width Check (p. 33)
4. VCF1 Check (p. 33)
5. VCF2 Check (p. 34)
6. VCF3 Check (p. 34)
7. Routing Check (p. 34)
8. CV Adjust (p. 35)
9. GATE Check (p. 35)
1. Version
This is the same as 1. Version (p. 24).
Press to advance to the next test item.
2. OSC Adjust
This adjusts the wave form and the level of the saw wave of each
oscillator.
+————————————————+
|A1-OSC1: **|
|Press [ENTER] |
+————————————————+
1. Connect the oscilloscope to the ANLALOG DRY jack.
65-Hz (C2) saw wave is output.
2. Press + or - to change the degree of leaning of the saw wave and adjust so
that clipping disappears as shown in the figure below.
fig.test-a-2-1-e.eps
fig.test-a-2-2-e.eps
fig.test-a-2-3.eps
3. Press + or -, and when the value on the screen becomes 93, press Enter.
1,046 Hz (C6) saw wave is output and a screen like the one shown below
appears.
+————————————————+
|A1-OSC1: ( **)|
|Press [ENTER] |
+————————————————+
4. Verify that there is no clip on the wave and the value on the screen is in
the range of 80 to 93, and then press Enter.
Execution advances to the adjustment of the next wave form.
5. For A1-OSC2, A2-OSC1, A2-OSC2, A3-OSC1, A3-OSC2, A4-OSC1 and
A4-OSC2, adjust in the same way as steps 2 through 4.
6. Press Write.
The results of adjustment are written and execution advances to the next
test item.
CLIPPED
EDGE
Not OK
CLIPPED
EDGE
Not OK
OK
SHARP
EDGE