Roland ME-25 - Test Mode Procedures and Checks; Quitting, Skipping, and Version Checks; Current, Voltage, Switch, and LED Checks

14
Feb. 2010 ME-25
Quitting the Test Mode
Detach the plug from the INPUT jack, switch off the power.
Skipping
1. Press and hold down [CRUNCH] and [SUPER].
This quits the test item currently being executed.
2. Press [EXIT] or [LEAD] to select the test item.
3. Press [WRITE] to execute the test item.
Test Items
1. Version Check and Device Check (p. 14)
2. Current-consumption Check, Voltage detection Check, and
SW (Switch) and LED Check (p. 14)
3. VR Check (p. 15)
4. EXP (Expression Pedal) VR Check and Calibration (p. 15)
5. D/A Check (p. 16)
6. A/D Check (p. 17)
7. Clip Check (p. 17)
8. Residual Noise Check (p. 17)
9. USB Check (p. 17)
10. Battery Operation Check (p. 17)
1. Version Check and Device Check
1. Turn down all controls all the way counterclockwise (minimum).
2. Hold down [WRITE] and [EXTREME] and insert a plug into the INPUT
jack.
The power comes on, and after a dot is displayed for approximately two
seconds, the version is displayed on the 7-segment LED display.
fig.test1-1.eps
Checking of the internal devices is conducted until the triangular LEDs to
the left and right of the 7-segment LED display lights up.
fig.test1-2.eps
3. Press [EXIT] to move to the next test.
2. Current-consumption Check, Voltage
detection Check, and SW (Switch) and
LED Check
1. Make sure that all LEDs light up.
2. Measure the current consumption and verify that it is between 110 and
130 mA.
* The voltage-detection check (steps 3 through 6 below) requires a stabilized
power supply. If none is available, skip steps 3 through 6.
3. Set the voltage of the stabilized power supply to 6.5 V.
4. Verify that bt is displayed on the 7-segment LED display.
fig.test2-1.eps
5. Set the voltage of the stabilized power supply to 9.0 V.
6. Verify that the reading on the 7-segment LED display changes from bt to
a fully illuminated state.
7. Press the switches shown in the following chart in the sequence shown
under No.
When you press each switch, verify that the corresponding LED in the
chart goes dark.
Verify that a clicking sensation is felt when each switch is pressed.
7-segment LED darkening sequence
fig.test2-2.eps
8. After all have gone dark, press [MEMORY ] to move to the next test.
No. Switch LED
1 WRITE 7-segment LED - A
2 WRITE 7-segment LED - B
3 WRITE 7-segment LED - C
4 WRITE 7-segment LED - D
5 EXIT 7-segment LED - E
6 EXIT 7-segment LED - F
7 EXIT 7-segment LED - G
8 EXIT 7-segment LED - H
9 LEAD LEAD
10 DRIVE DRIVE
11 CLEAN CLEAN
12 CRUNCH CRUNCH
13 HEAVY HEAVY
14 EXTREME EXTREME
15 SUPER STACK SUPER STACK
16 SUPER STACK PEDAL FX
17 SOLO/TAP TEMPO SOLO/TAP TEMPO
18
MEMORY
19
MEMORY