Pioneer DDJ-ERGO-V Service Manual page 20

1
A
[3-4] Abnormalities regarding the JOG dial
After the JOG Assy is disassembled then reassembled, be sure to check that the load value for the JOG dial is within the
specified range. Refer to the "8.4 JOG DIAL ROTATION LOAD ADJUSTMENT".
No. Cause Diagnostics Point
Turning of the JOG dial is not detected.
1 Loose connection CDJ1 Assy
CDJ2 Assy
JOG1/2 Assy
2 Defective JOG1/2 JOG1/2 Assy
photo interrupter
B
3 Defective MAIN CDJ1 Assy
UCOM (IC1002)
Pressing on the JOG dial cannot be detected.
4 Loose connection CDJ1 Assy
CDJ2 Assy
TCH1/2 Assy
5 Defective TCH1/2 TCH1/2 Assy
photo interrupter
C
6 Defective MAIN CDJ1 Assy
UCOM (IC1002)
Noise is heard when the JOG dial is turned.
7 Defective gear, JOG section
Defective JOG
dial B
D
The JOG dial turns too freely. (The load value for the JOG dial is outside the specified range.)
8 Improper JOG section
adjustment or
assembly of the
JOG dial
E
Resistance to turning the JOG dial is too strong. (The load value for the JOG dial is outside the specified range.
9 Improper JOG section
adjustment of
the JOG dial or
defective washer,
gear, or cam plate
F
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1
2
Item to be Checked
Check the JOG_DIAL1/2_0 and
JOG_DIAL1/2_1 waveforms while the Jog
dial is rotated.
Check the JOG_DIAL1/2_0 and
JOG_DIAL1/2_1 waveforms while the Jog
dial is rotated.
If the symptom persists after the above
corrections.
Check the signal level of the JOG_TCH1/2
when the JOG dial is pressed.
Check the signal level of the JOG_TCH1/2
when the JOG dial is pressed.
If the symptom persists after the above
corrections.
There may be any scratches on the gear
or some foreign matter between the gears.
There may be any scratches or some
foreign matter on the JOG dial B or the
Roller B Assy.
Check that the load value for the JOG dial
is within the specified range, referring to
"Measuring method" in "8.4 JOG Dial
Rotation Load Adjustment."
Check that the load value for the JOG dial
is within the specified range, referring to
"Measuring method" in "8.4 JOG Dial
Rotation Load Adjustment."
DDJ-ERGO-V
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3
Corrective Action
If either waveform is abnormal, connection of
that signal line may be loose or the resistor or
the capacitor may be defective.
If either waveform is abnormal, the photo
interrupters (PC1701, PC2701) may be defective.
The MAIN UCOM (IC1002) may be defective.
If the signal level of the JOG_TCH1/2 does not
become L when the dial is pressed and H when
the dial is released (not pressed,) loose
connection of the signal line or a defective
resistor, capacitor, transistor may be suspected.
If the signal level of the JOG_TCH1/2 does not
become L when the dial is pressed and H when
the dial is released (not pressed,) a defective
photo interrupter (IC1801, IC2801) and
peripheral circuit may be suspected.
The MAIN UCOM (IC1002) may be defective.
If there are any scratches, replace the scratched
gear with a new one.
If there is any foreign matter, remove it then
replace the gears with new ones.
Gears to be replaced: Load gear, Encoder gear,
JOG shaft
If there are any scratches, replace the scratched
gear with a new one.
If any foreign matter is attached, remove it.
If it is outside the specified range, adjust the position
of the Adjust Plate to change the load value for the
JOG dial, referring to "Load adjustment method" in
"8.4 JOG Dial Rotation Load Adjustment."
During the above adjustment, if the upper-limit
adjustment position of the Adjust Plate is reached,
oil may have been spattered on the Adjust Plate.
Replace the washer, load gear, and cam plate with
new ones, then reassemble.
If it is outside the specified range, adjust the position
of the Adjust Plate to change the load value for the
JOG dial, referring to "Load adjustment method" in
"8.4 JOG Dial Rotation Load Adjustment."
During the above adjustment, if the lower-limit
adjustment position of the Adjust Plate is reached,
shavings from the worn-out washer may have
increased the friction. Replace the washer, load gear,
and cam plate with new ones, then reassemble.
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4
Reference
10.13 WAVEFORMS
2"#
10.13 WAVEFORMS
2"#
[7] Basic Operation
Check of the MAIN
UCOM
10.13 WAVEFORMS
2!
10.13 WAVEFORMS
2!
[7] Basic Operation
Check of the MAIN
UCOM
———
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8.4 JOG DIAL
ROTATION LOAD
ADJUSTMENT
8.4 JOG DIAL
ROTATION LOAD
ADJUSTMENT
8.4 JOG DIAL
ROTATION LOAD
ADJUSTMENT
8.4 JOG DIAL
ROTATION LOAD
ADJUSTMENT
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