Yamaha Disklavier MX100A Product Handbook page 103

Messages related to the PK-CTL Board: Protect Function
No. Message
LOUD PEDAL
06 TIME OUT !!
SOFT PEDAL
07 TIME OUT !!
SENSOR
08 LED ON ERROR!
SENSOR
09 NOT CONNECTED !
SOFT PEDAL
11 MUTE ERROR!
LOUD PEDAL OVER
12 LOAD! ERROR!
SOFT PEDAL OVER
13 LOAD! -> DISABLE!
PIANO POWER OFF!
(THERMOSTAT)
14
PIANO POWER OFF!
(PWM OVER)
15
Condition
The keyboard & sustain, soft/
shift pedal playback stop →
Press STOP button to reset
Soft/shift pedal playback
stop → Turn power off then
back on to reset
LCD display only. Recording
and Keyboard measurement
cannot be performed
LCD display only. Recording
and Keyboard measurement
cannot be performed
LCD display only. The MX100II
Mute function does not work
The keyboard & sustain, soft/
shift pedal playback stop →
Press STOP button to reset
Soft/shift pedal playback
stop → Turn power off then
back on to reset
The keyboard & sustain, soft/
shift pedal playback stop. Play-
back functions cannot be
restored until the solenoid has
cooled down sufficiently.
The keyboard & sustain, soft/
shift pedal playback stop. Play-
back function cannot be
restored until the drive transis-
tor(s) has/have cooled down
sufficiently and the power has
been turned off, then turned
back on.
Contents and countermeasures
The sustain pedal solenoid continually requires excessive
drive voltage to function. → Check sustain pedal acoustic
adjustment
The soft/shift pedal solenoid continually requires excessive
drive voltage to function. → Check soft/shift pedal acoustic
adjustment
Data communication between emitter and receiver is not done
when LEDs are ON. → Check each connecter
Data communication between emitter and receiver is not done
when LEDs are OFF. → Check each connecter
The acoustic adjustment of the soft pedal is not correct →
Check pedal adjustment. Mute solenoid problem → Change
the solenoid
Sustain pedal movement and operation is not within accepta-
ble range → Check the acoustic pedal adjustment and pedal
sensor board.
Soft/shift pedal movement and operation is not within accepta-
ble range. → Check the acoustic pedal adjustment and pedal
sensor board.
100V of power to Keyboard and pedal drive OFF.
Either the sustain or soft/shift solenoid thermostat has acti-
vated because the solenoid become too hot. → Check pedal
acoustic adjustments or replace the broken thermostat.
100V (120V for Grand) of power to Keyboard and pedal drive
OFF. One or more key drive transistors have become too hot
and the protect circuit has activated. → Check the drive board
II-51