Yamaha AW2400, Service Manual

Page: 63 / 172

63
AW2400
1-5. Fader calibration procedures
To perform the fader calibration only, turn on the power while
holding down the [JOG ON] key and [ENTER] key.
1-6. Fader Inspection
q
Preparation
a. Press the LAYER [TRACK1-12] key to select a TRACK1-
12 layer.
b. Move all the Faders to the top-most position.
c. Press the QUICK NAVIGATE [MONITOR] key several
times until the FADER Grp. screen is selected and press
[SEL1] - [SEL12] key to group the 12 Faders.
No.
1
2
3
4
5
Message on the display
Fader Calibration
Start [ENTER]
Calibrating Fader Move
#### Do Not Touch the
Faders ####
Set CH1-12: +10 dB,
ST: 0 dB [ENTER]
Set CH1-12: 0 dB,
ST: Any [ENTER]
Set CH1-12: –15 dB,
ST: –30 dB [ENTER]
Operation
Starts cal bration.
Press [ENTER].
Calibrating Fader Move
(motor drive). Do not touch
the faders. Do not block the
movement of the faders,
either.
Set the Faders for CH1-12 to
+10 dB and STEREO Fader
to 0 dB scale. When they are
set, press [ENTER].
Set the Faders for CH1-12 to
0 dB scale. It is not necessary
to adjust the STEREO Fader.
When they are set, press
[ENTER].
Set the faders for CH1-12 to
–15 dB and STEREO Fader
to –30 dB scale. When they
are set, press [ENTER].
w
Group Inspection
a. Operate the CH12 Fader 2 laps slowly (around 3
seconds/100 mm), and 2 laps quickly (around 1 second/
100 mm).
b. Operate the CH1 Fader 2 laps slowly (around 3 seconds/
100 mm), and 2 laps quickly (around 1 second/100 mm).
c. Check that no Fader vibrates or moves too slowly. Delay
limit should be less than the length of one Fader knob.
d. If any Fader is too slow, repeat aging ten times or more
following the procedures below.
Select LAYER TRACK1-12 and set the Faders 1-12 to
the top. Next, select TRACK13-24 and set the Faders 1-
12 to the bottom. Press TRACK1-12 and TRACK13-24
buttons alternately to repeat the up-and-down movement.
e
Recall Inspection
a. Press the LAYER [TRACK1-12] key to select TRACK1-
12. Move all the Faders (including the STEREO Fader)
to the top-most position.
b. Press the [SCENE] key to select the Library screen, press
the [INC/DEC] key to select number 1, and press the
[STORE] key to store as number 1.
c. Press the [INC/DEC] key to select number 0 and press
the [RECALL] key to recall the number 0. Press the [INC/
DEC] key to select number 1 and press the [RECALL]
key to recall the number 1.
Repeat recalling number 0 and number 1 twice.
d. Check that no Fader vibrates or moves too slowly during
the above operation.
Check also the positions of the Faders are as described
below.
All the Faders are within 2 mm from the –
∞
scale when
the number 0 is recalled (all the Faders are at the bottom).
CH1-12 Faders are within 2 mm from the +10 dB scale
and the STEREO Fader is within 2 mm from the 0 dB
scale when the number 1 is recalled (all the Faders are
at the top-most).
e. During the above check, delay limit should be less than
the length of one Fader knob. Perform the procedure “d”
in the “
w
Group Inspection” if any Fader is delayed. If
there is no abnormality, the recall test results are OK.
Select number 1 and press the [CLEAR] key to clear the
memory.
6
7
Set CH1-12: –
∞
dB,
ST: –
∞
dB [ENTER]
ERROR: Position Calibration.
Retry? [ENTER/CANCEL]
Set the Faders for CH1-12
and STEREO Fader to –
∞
dB
scale.
When they are set, press
[ENTER]. If there is no
problem in the Fader Position
d a t a , t h e c a l i b ra t i o n i s
completed and the main unit
program will star t in the
standard mode.
If the Fader Position data are
not in the expected limits in
the procedure numbers 3
through 6, "NG" is displayed
and this message will be
shown after procedure 6. To
c a l i b r a t e a g a i n , p r e s s
[ E N T E R ] ( t o r e t u r n t o
procedure 3.) If [CANCEL] is
p r e s s e d , c a l i b r a t i o n i s
stopped and the main unit
program will start.