24
JAN.2006
5.SOUND Test2
Check for speaker flutter.
Adjust the VOLUME control so that the setting is no higher than the
center.
(Low Range Test)
1. Make sure a bass-range sine wave (with up and down changes in pitch) is
output from Output-L and -R.
2. Make sure the speaker audio is free of flutter.
fig.lcd-t10-low
3. Pressing [TEMPO + / YES] advances to the Mid Range Test.
(Mid Range Test)
4. Make sure a mid-range sine wave (with up and down changes in pitch) is
output from Output-L and -R.
5. Make sure the speaker audio is free of flutter.
fig.lcd-t11-mid
6. Pressing [TEMPO + / YES] advances to the High Range Test.
(High Range Test)
7. Make sure a treble-range sine wave (with up and down changes in pitch)
is output from Output-L and -R.
8. Make sure the speaker audio is free of flutter.
fig.lcd-t12-high
* Pressing [1] returns to the Low Range Test.
* Pressing [2] returns to the Mid Range Test.
* Pressing [3] returns to the High Range Test.
Note:The following three operations allow more detailed inspection.
1. Pressing [SONG] makes the pitch-changing stop. Pressing it a second
time resumes.
2. Pressing [SELECT < ] or [SELECT > ] during operation changes the
direction of the pitch-change.
3. Pressing [SELECT < ] or [SELECT > ] while operation is stopped allows
fine adjustment of the pitch.
9. Pressing [TEMPO + / YES] advances to the next item.
6.LCD Test
fig.lcd-t13-whole
1. Make sure all dots and icons on the LCD screen are displayed.
2. Pressing the [TEMPO + / YES] button advances to the LCD hide-all test.
fig.lcd-t14-noth
3. Make sure no dots or icon on the LCD screen are displayed.
4. Pressing the [TEMPO + / YES] button advances to the LCD Contrast Test.
(LCD Contrast Test)
fig.lcd-t15-cd20
5. Make sure the contrast value increases or decreases by 10 steps at a time
when [SELECT < ] or [SELECT > ] is pressed.
The contrast value is displayed on the LCD screen (at the ** location).
6. Pressing the [TEMPO + / YES] button proceeds to the next test.
Low: -- [1]
Mid: -- [2]
High: -- [3]
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