Yamaha MODX6 Service Manual page 46

MODX6/MODX7
LCD display
19 : ROM
20 : RAM
21 : Internal Audio
22 : Touch Panel
Calibration
23 : TG Interrupt
46
Checks eMMC (IC403), SUB CPU ROM (IC502) and WAVE ROM (IC601, IC604, IC605, IC607).
(This check takes about 11 seconds.)
1) Press the [ENTER] button, and then the result is shown on the LCD.
Until the result is given, "Now Executing..." is shown.
If no problem is found: OK
If any problem is found: NG
2) Confirm that "OK" is shown for all items on the LCD.
3) When OK/NG of the test result is shown, testing is finished and the display is changed to the test
item selection screen.
Checks MAIN CPU RAM (IC401), EFFECT RAM (IC803, IC804) and WAVE RAM (IC901).
1) Press the [ENTER] button, and then the result is shown on the LCD.
If no problem is found: OK
If any problem is found: NG
2) Confirm that "OK" is shown for all items on the LCD.
3) When OK/NG of the test result is shown, testing is finished and the display is changed to the test
item selection screen.
Checks whether the correct audio signals are output/received between the SWP70 and SSP2. (There are
8 connection lines for audio output.) The full scale 441Hz sine wave is output and changed via SSP2 by
each 2 channels and 2 ways of connection (4 patterns in all).
1) Press the [ENTER] button, and "Audio 1 ON" is shown on the LCD and a 441Hz sine wave
sound is produced. (Audio 1 test)
2) Press the [ENTER] button, and "Audio 2 ON" is shown on the LCD and a 441Hz sine wave
sound is produced. (Audio 2 test)
3) Press the [ENTER] button, and " Audio 3 ON " is shown on the LCD and a 441Hz sine wave
sound is produced. (Audio 3 test)
4) Press the [ENTER] button, and " Audio 4 ON " is shown on the LCD and a 441Hz sine wave
sound is produced. (Audio 4 test)
5) Press the [ENTER] button, and "OK" is shown on the LCD, testing is finished and the display is
changed to the test item selection screen.
Checks whether the touch panel works properly or not.
1) Press the [ENTER] button. The mark "
□
2) Touch the mark ( ) at the upper left.
When the touch panel is touched, the built-in buzzer sounds.
3) Then, touch the mark ( □
"center", according to the display on the screen.
4) When all checks are over, "OK" is shown on the LCD.
Testing is finished and the display is changed to the test item selection screen.
Checks that the CPU can receive the interrupt signal from the SWP70.
1) Press the [ENTER] button, and then the result is shown on the LCD.
If no problem is found: OK
If any problem is found: NG
2) Confirm that "OK" is shown for all items on the LCD.
3） When OK/NG of the test result is shown, testing is finished and the display
item selection screen.
Test items and judging conditions
□
" is shown at the upper left of the LCD (touch panel).
) in the following order, "upper right" → "lower right" → "lower left"
is changed to the test
→