Yamaha Disklavier Silent MarkIII DC3A Maintenance Handbook - Page 47
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7. Pass Numbers and Error Messages
1 PASS NUMBER
PEDAL PASS NUMBERS
PASS No.
Sustain Soft/shift
0
1 LOUD(SOFT)
CHECK SUM ERROR
2
— ADJUST LOUD PEDAL Too much of lost motion
3
— ADJUST LOUD PEDAL Too little lost motion
6
7 LOUD(SOFT)
SENSOR ERROR
8
9 LOUD(SOFT)
PEDAL OVER WEIGHT
10
11 LOUD(SOFT)
SENSOR ERROR
124
— ADJUST HALF POINT Pedal half point could not be found
127
127
* Pedal measurement should always be done after finishing the above countermeasures
KEYBOARD PASS NUMBERS
PASS No.
Condition
00
Nomal
01
Pedal movement problem
02
Acoustic adjustment problem
03
Hammer sensor problem
04
10, 20, 30
Key drive problem
Hammer sensor problem
11, 21, 31
Pedal movement problem
12, 22, 32
Acoustic adjustment problem
13, 23, 33
Hammer sensor problem
14, 24, 34
15, 25, 35
Acoustic adjustment problem
Key sensor problem
16, 26, 36
Acoustic adjustment problem
17, 27, 37
Pedal movement problem
18, 28, 38
19, 29, 39
Connector problem
while the power is ON
THE PLAYBACK TABLE CONDITIONS WHICH ARE USED WHEN PASS HAS OCCURED
PASS No.
Condition
00
All kinds of measurement phases (5 kinds) were used when calculating
01~03
4 kinds of measurement phases were used
04
3 kinds of measurement phases were used
10~19
The same table data of the next (black/white) before was used
20~29
The same table data of the next but one (black/white) before was used
30~39
Emergency table data was used
Message
Data has been erased or corrupted
for sustain pedal
for sustain pedal
Pedal A/D value = 0
The pedal is too heavy
Unusual sensor condition
Pedal is depressed during measuerment
Normal
45
Causes
Countermeasure
Measure again
Pedal acoustic adjustment
Pedal acoustic adjustment
Pedal measurement
Check the sensor condition
Pedal acoustic adjustment
Pedal measurement
Check the sensor condition
Perform the half point
measurement
Countermeasures
Pedal acoustic adjustment, Pedal measurement
Piano acoustic adjustment
Check the hammer sensor (sensor test)
Check key drive unit
Check the hammer sensor (sensor test)
Pedal acoustic adjustment, Pedal measurement
Piano acoustic adjustment
Check the hammer sensor (sensor test)
Piano acoustic adjustment
Check the key sensor (sensor test)
Piano acoustic adjustment
Pedal acoustic adjustment, Pedal measurement
Perform each measurement again
Pedal play-
back mode
SW
SW
SW
SW
SW
SW
HP
HP