Yamaha Disklavier Silent MarkIII DC3A Maintenance Handbook - Page 35
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5. Keyboard measurement — re-writing of table data for keyboard
Power
+
00
* MAINTENANCE *
*** MODE GP **
R
5 times
05
*** KEYBOARD ***
** MEASUREMENT *
05
KEYBOARD MEASURE
PDL=01 PHS-01
05
CALCULATION!
05
OK !
PRESS [STOP]
05
END!
00
* MAINTENANCE *
*** MODE GP ***
After measuring the piano condition, calculate the opti-
mum keyboard playback table, and save it on the EEP-
ROM of the PK-CTL board
Reason for keyboard measurement
Improvement of minimum pressure playback through the piano
action regulation also depends on the condition of the piano action
regulation, and the keyboard playback table (which matches the con-
dition of the action).
Keyboard measurement should be carried out when:
• the piano is delivered and installed
• when piano action regulation has been carried out
• when instability of pianissimo passages in detected in automatic
playback
Measurement phases
* There are 5 kinds of measurement phases.
01 (minimum pressure) ~ 05 (fortissimo)
* Each measurement phase measures four pedal ON/OFF conditions
as listed below.
* Calculation starts after the measurement.
Push 'YES' button for displayed PASS No. and which key No. when
PASS occurs
Pedal phases
GP
01
02
1 key measurement mode
*** KEYBOARD ***
** MEASUREMENT *
+ /YES
–/NO
**** XX KEY ****
** MEASUREMENT *
XX KEY MEASURE
PDL=01 PHS-01
33
Sustain
OFF
ON
Single key measurement can be done
when PASS occurs
Select Key No.
Measurement start