Pioneer CDJ-2000NXS Service Manual page 22

1
A The JOG dial turns too freely. (The load value for the JOG dial is outside the specified range.)
No. Cause Diagnostics Point
1 Improper adjust- JOG Assy
ment
or assembly
of the JOG dial
Resistance to turning the JOG dial is too strong. (The load value for the JOG dial is outside the specified range.)
No. Cause Diagnostics Point
B
1 Improper adjust- JOG Assy
ment of the JOG
dial or defective
washer, gear, or
cam plate
The ADJ KNOB does not work or does not stop at the intended position.
No. Cause Diagnostics Point
1 Improper adjust- JOG Assy
C
ment
or assembly
of the JOG dial
[4] USB (Type A/Type B), SD Card
[4-1] No communication via the USB connector (Type A)
Check the following, with a USB device connected to the USB A connector.
No. Cause Diagnostics Point
D
1 Loose connections Between USBA Assy
in the communi-
and MAIN Assy
cation line.
2 V+5_USB_HOST_ MAIN Assy
VBUS is defective.
3 The USB USBB Assy
POWER SW IC
or its control
signal is defective.
E
4 Defective MAIN Assy
MAIN CPU
[4-2] No communication via the USB connector (Type B)
Check the following, with a USB device connected to the USB B connector.
No. Cause Diagnostics Point
1 Loose connections MAIN Assy
in the communi-
cation line.
2 Defective MAIN Assy
MAIN CPU
3 Loose connections MAIN Assy
F
in the USB signal.
4 Defective MAIN Assy
USB CONTROLLER
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1
2
Item to be Checked
Check that the load value for the JOG dial
is within the specified range, referring to
"Measuring method" in "8.3 JOG DIAL
ROTATION LOAD ADJUSTMENT."
Item to be Checked
Check that the load value for the JOG dial
is within the specified range, referring to
"Measuring method" in "8.3 JOG DIAL
ROTATION LOAD ADJUSTMENT."
Item to be Checked
Check if the plate spring of the JOG
holder is worn out or deformed.
Check if there is any foreign object in
the link section (gears).
Item to be Checked
Check the connection of the USB
communication line.
Check V+5_USB_HOST_VBUS of the
USB power supply.
Check the CPU_USB_HSTPWREN and
CPU_USB_HSTPWRFL signals from the
USB POWER SW IC (IC6301).
If the symptom persists after the above
corrections.
Item to be Checked
Check the connections from the MAIN
CPU and USB CONTROLLER.
Check the signal from the MAIN CPU and
USB CONTROLLER.
Check the connections of the
communication line (USB_D+, USB_D-).
If the symptom persists after the above
corrections.
CDJ-2000NXS
2
3
Corrective Action
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 "How to Adjust" in "8.3 JOG DIAL
ROTATION LOAD ADJUSTMENT."
During the above adjustment, if the upper-limit
adjustment position of the Adjust Plate is reached,
oil mayhave been spattered on the Adjust Plate.
Replace the washer, gear, and cam plate with new
ones, then reassemble. After replacement, adjust
the position of the Adjust Plate to change the load
value for the JOG dial.
Corrective Action
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 "How to Adjust" in "8.3 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, gear,
and cam plate with new ones, then reassemble.
After replacement, adjust the position of the Adjust
Plate to change the load value for the JOG dial.
Corrective Action
Replace the JOG holder. After replacement,
adjust the position of the Adjust Plate to
change the load value for the JOG dial.
Remove the foreign object. During reassembly,
pay attention to the position of the cam plate.
After replacement, adjust the position of the Adjust
Plate to change the load value for the JOG dial.
Corrective Action
If connection is improper, resolder it.
If connection is proper, go to 2.
If V+5_USB_HOST_VBUS cannot be confirmed, go to 3.
If V+5_USB_HOST_VBUS can be confirmed, go to 4.
If the CPU_USB_HSTPWREN signal does not become H,
check the connection. If the connection is OK, then the
MAIN CPU (IC10) is defective. Replace the MAIN Assy.
If the CPU_USB_HSTPWRFL signal does not become H,
the USB POWER SW IC (IC6301) is in a state of
shutdown caused by abnormally high temperature.
Check the connection. If the connection is OK, then the
port may be damaged. Replace it.
The MAIN CPU (IC10) is defective.
Replace the MAIN Assy.
Corrective Action
If connection is improper, resolder it.
If connection is proper, go to 2.
If the signal is not output from the MAIN CPU
(IC10), it may be defective.
Replace the MAIN Assy.
The communication line may be loosely
connected. Correct it if it is.
The USB CONTROLLER (IC701) is defective.
Replace it.
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4
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