Roland MT-90U Service Notes page 19

Mar. 2008
1. Version
Verify the version of the system.
1.
Hold down the [R] and [
The Test mode is enabled.
2.
Verify that [SYS] has been selected and press the [
fig.test-Version.eps
3.
Verify that the unit is at the latest version.
4.
Press the [ ] button to advance to the next item.
2. Device Test
This automatically checks the operation of the Wave ROM.
fig.test-Device-1.eps
fig.test-Device-2.eps
When OK is displayed, press the [
item.
3. USB Test
This performs a USB connection check.
1.
Using a USB cable, connect the USB connector on the front panel to the
USB connector on the rear panel.
2.
Verify that the message displayed on the LCD screen changes from
Disconnected to Connected.
fig.test-USB-1.eps
fig.test-USB-2.eps
If no problem is found, execution automatically advances to the next
item.
4. IrDA Test
This performs testing of infrared communication.
* Outside Japan, this test is not required. Press the [
next item.
fig.test-IrDA.eps
] buttons and switch on the power.
] button.
] button to advance to the next
] button to advance to the
5. Switch Test
This tests switch operation.
1.
Press the [ ], [ ], [-], and [+] buttons on the front panel in
sequence, one at a time, and verify that each button name is displayed on
the LCD screen.
2.
Connect the pedal switch to the Start/Stop jack on the rear panel.
3.
Depress the pedal and verify that the message Pedal is displayed on the
LCD screen.
fig.test-Switch-1.eps
4.
Aim the remote-control unit at the infrared port on the front panel.
5.
Press the [REPEAT] button on the remote control and verify that the
message RemoteRepeat is displayed on the LCD screen.
fig.test-Switch-2.eps
When verification for all switches has finished, execution automatically
advances to the next item.
6. Red LED Test
This tests illumination of the red LEDs.
1.
Press the [ ], [ ], [
at a time.
2.
Verify that the corresponding LED for each lights up.
3.
Press the [ ] button.
4.
Verify that the Beat LED (to the left of the LCD screen) lights up.
When verification for all red LEDs has finished, execution automatically
advances to the next item.
7. Green LED Test
This tests illumination of the green LEDs.
1.
Press the [R], [1], [2], [3], [4], and [
2.
Verify that the corresponding LED for each lights up.
3.
Press the [ ] button.
4.
Verify that the Beat LED (to the left of the LCD screen) lights up.
When verification for all green LEDs has finished, execution
automatically advances to the next item.
8. LCD Test
This tests the display of the LCD screen.
fig.test-LCD.eps
1.
Verify that pressing the [
and that pressing the [ ] button makes the entire screen light up.
2.
Press the buttons just described in alternation and verify that no dot
drop-out is present.
3.
Press the [ ] button to advance to the next item.
MT-90U
], and [ ] buttons in sequence, one
] buttons in sequence, one at a time.
] button makes the entire screen go dark
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