Yamaha Motif XS Series, Руководство по обслуживанию

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MOTIF XS6/MOTIF XS7/MOTIF XS8
NG: No indication
[MIDI code output for judgment result]
OK: A0 08 02 <== (When the key is normal.)
NG: No output
[How to quit test]
If the C3 key is normally checked and indicated as OK, the test
will be completed and item selection condition will be selected.
If the judgment is NG on the way, refer to “
D. How to carry
out tests when judged as NG
” (page 113) to proceed the
test program.
[Others]
None
T08: KAT
(Test Code: A00900)
[First indication]
[Test contents]
Check that the keyboard works normally.
Compare the Key ON data from the EBUS controller with
Key No. on the LCD.
When the key is ON, velocity value in the received data will
be shown.
Check that After Touch works normally.
Compare the After Touch data from the EBUS controller
with the target value on the LCD.
Note: AT Offset test is executed on MOTIF XS8 only.
[Test method]
Plays each key in the order of scale.
Apply After Touch according to an LCD display as follows "
then release (127 to 0) smoothly.
Press [ENTER] 08 : KAT
TEST
MOTIF XS Test Program
<If keyboard test (C1) is pressed>
08 : KAT
TEST
MOTIF XS Test Program
xxx: Velocity of the pressed key
yyy: Target value
zzz: Current value
Scaling Press C 1
After Touch < yyy > zzz
AT Offset 1.556 v
Velocity xxx
OK
Displayed for XS8 only.
<After Touch test>
Note: AT Offset test is displayed on MOTIF XS8 only
Displayed for XS8 only.
OK
08 : KAT
TEST
MOTIF XS Test Program
yyy: Target value
zzz: Current value
Scaling
After Touch < yyy > zzz
AT Offset 1.556 v OK
Press the key that is shown on the LCD ON.
When the key is ON, the Velocity at the instant of ON is shown,
TONE (1KHz) will be played and the test for the next key will
be selected. The sound played is a sine wave almost as loud as
the sound for 1kHz sound check.
If an unexpected code is sent (wrong key is pressed), NG will
be shown and no sound will be played.
Then, if a correct code is received (correct key is pressed), the
test for the next key will be selected.
If all the keys are normal, OK will be indicated.
[Check item]
Check that all the keys are normal.
Check that After Touch value changes smoothly as you press
down a key and that judgment is OK. Next to the After Touch
judgment, an Offset voltage will be displayed.
Note: AT Offset test is executed on MOTIF XS8 only.
Permissible Offset voltage range should be 1.098 v to 2.695 v
and in case the value is out of the range, current value of the
After Touch will be
fi xed to 0.