Yamaha MX-1, Product Handbook

Page: 74 / 116

II-22
Keyboard Pass Numbers
K
eyboard-measurement data is collected both for pedal phases and for dri
v
e-current phases.
1.
Pedal phases •
UP models: 01 to 04
•
GPs , MPX70: 01, 02
•
DGP211XG, DGT7: 01-
--jaiat
2.
Dri
v
e-current phases
Fi
v
e phases: PHS 01 (minimum pressure) to PHS 05 (maximum pressure)
•
The location of the P
ASS number on the display identifi
es the pedal phase that generated the problem.
•
The v
alue of the P
ASS number indicates the dri
v
e-current phase that generated the problem.
•
The ten’
s digit of the P
ASS number indicates the se
v
erity of the problem. (Higher v
alues indicate more serious problems.)
P
ASS
No.
Data Used f
or
T
a
b
le Calculation
Cause
What
to
Do
00
Nor
mal
V
elocity PHS 1–5
01
V
elocity PHS 2 w
as abnor
mal
V
elocity PHS 1, 3, 4, 5
P
edal mo
v
ement prob
lem
Acoustic adjustment prob
lem
Hammer Sensor prob
lem
P
edal Acoustic Adjustment
P
edal Measurement
Piano Acoutic Adjustment Chec
k the Hammer Sensor (Sensor test)
02
V
elocity PHS 3 w
as abnor
mal.
V
elocity PHS 1, 2, 4, 5
03
V
elocity PHS 4 w
as abnor
mal.
V
elocity PHS 1, 2, 3, 5
04
V
elocity PHS’
s 2 and 4 w
ere abnor
mal.
V
elocity PHS 1, 3, 5
10, 20, 30
V
elocity PHS 1 measurement v
alue = 0
10 to 19:
Use data from preced- ing same-color k
e
y.
20 to 29:
Use data from second preceding same-color key
.
30 to 39:
Use emergency tab
le
.
K
e
y Dr
iv
e prob
lem
Hammer Sensor prob
lem
Chec
k the K
e
y Dr
iv
e Unit
Chec
k the Hammer Sensor (Sensor test)
11,
21,
31
V
elocity PHS 1 measurement v
alue w
as too large
.
P
edal
mo
v
ement
prob
lem
Acoustic adjustment prob
lem
Hammer Sensor prob
lem
P
edal Acoustic Adjustment
P
edal Measurement
Piano Acoustic Adjustment Chec
k the Hammer Sensor (Sensor test)
12, 22, 32
V
elocity PHS’
s 2 and 3 w
ere abnor
mal.
13, 23, 33
V
elocity PHS’
s 3 and 4 w
ere abnor
mal.
14, 24, 34
V
elocity PHS 5 w
as abnor
mal.
15, 25, 35
Could not measure k
e
y-off
.
Acoustic adjustment prob
lem
K
e
y Sensor prob
lem
Acoustic adjustment prob
lem
P
edal mo
v
ement prob
lem
Piano Acoustic Adjustment Chec
k the Hammer Sensor (Sensor test)
Piano Acoustic Adjustment P
edal Acoustic Adjustment
P
edal Measurement
16, 26, 36
No applicab
le tab
le f
or touch data (TD).
17, 27, 37
No applicab
le tab
le f
or attac
k dela
y (AD).
18, 28, 38
No applicab
le tab
les f
or both
TD and AD
.
19, 29, 39
Error wr
iting to EEPR
OM.
Connector prob
lem
while the po
w
er is ON
P
erf
or
m each Measurement again