Pioneer CDJ-400 Service Manual page 27

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6.2.2 Mode for checking load on the JOG dial and Adjustment
This mode is for objectively judging the load (light or heavy touch) on the JOG dial when it is turned, with a value.
Mode for Checking Load on the JOG Dial : ON
POWER OFF
[Measuring procedure]
After entering this mode, rapidly turn the JOG dial, either clockwise or
counterclockwise. The figures will be displayed.
If, for example, "8.6: 115" is displayed, each figure means the following:
8.6 : Maximum speed (Normal speed is one rotation in 1.8 sec.)
115 : Time (in msec) required for decreasing the rotation speed
from 3 times to 1.5 times normal speed
To measure the time required for reducing the rotation speed, the
maximum speed must be 7.0 times normal speed or higher.
If measurements are consecutively performed several times, the mean
value of the results of up to four latest measurements will be displayed,
in order to minimize variation.
Standard value: 95 ± 25 msec
[Adjustment procedure]
1. Enter this mode.
2. Adjust the adjustment value of Adjust plate to "0".
3. Rapidly turn the JOG dial, either clockwise or counterclockwise.
4. The rotational speed (maximum speed) and time are displayed in
the dot FL display section.
• The time required so that the rotation may decrease from 3 times
normal speed to 1.5 times normal speed when maximum speed is
only 7 times normal speed or more is displayed.
• Moreover, the mean value of the measurement result at the
rotation decrease time is displayed since the second times.
• The thing that the mean value at the decrease of the rotation three
times in total time is in the standard value (95 ± 25 msec) is
confirmed. Perform the following procedure if coming off from the
standard value.
5. When the rotational speed is smaller than 70, the adjustment value
of the adjust plate is changed to "-1" and performs the procedure 3
and 4. (1)
When the rotational speed is larger than 120, the adjustment value
of the adjust plate is changed to "+1" and performs the procedure 3
and 4. (2)
-3
Adjust plate
-2
+2
(The installation position refers to the JOG Dial
-1 +1
0
of section "7. DISASSEMBLY".)
1 2
Mode for Checking Load on the JOG Dial : CANCEL
POWER OFF
5
6
POWER ON
CDJ-400
6
7
FL Display
S ERV I CE MODE
Place the TEMPO slider at the
positive maximum-value (lowest)
position then press any key once.
Mode for checking load
on the JOG dial
FL Display
0 . 0 :
0m
Time (msec)
Max. speed
The unit enters the mode for checking
load on the JOG dial, and the maximum
speed and the time required for transition
are displayed on the dot-matrix display.
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8
A
B
C
D
E
F
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