Roland Juno-GJ Service Notes page 18

Apr. 2006
5. Card
Checks connectors of the PC card and the peripheral circuit.
When entering the Card test, the following message appears in the screen.
fig.11
Insert the PC card prepared previously to the card slot.
If the test is passed, the following message appears.
fig.12
When removing the PC card, the test program advances to the next test item
automatically.
6. Encoder
When entering the Encoder test, the following message appears in the screen.
fig.13
Rotate the VALUE dial counterclockwise for a while, and confirm the Left: 72
OK message appears in the screen.
Next, rotate the VALUE dial clockwise for a while; the Right: 72 OK message
appears in the screen and the test program advances to the next test item
automatically.
7. Switch1 & LED
Checks the function of switches with LED.
When entering the Switch1 & LED test, the following message appears in the
screen.
fig.14
One of the switches with LED on the top panel lights. When pressing the
switch, the next switch with LED lights. Continue this operation. When the
tests of all switches are passed, the test program advances to the next test item
automatically.
8. Switch2
Checks the function of switches without LED.
When entering the Switch2 test, the following message appears in the screen.
fig.15
Press the switches drawn with solid lines one by one.
Confirm the color of the corresponding switch will be light.
When all switch's color are light and the test result is OK, the test program
advances to the next test item automatically.
9. LCD
Checks the function of the LCD.
When entering the LCD test, the following message appears in the screen.
fig.16
Display pattern are changed whenever [F6] is pressed, then check whether
dots are chipped, density is uniform, dust exist or not.
Tiles
fig.17
Tiles (reversed)
fig.18
JUNO-G/JUNO-G (J)
19