Service Notice - Pioneer CDJ-2000NXS2 Service Manual

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1.3 SERVICE NOTICE

Before starting servicing
For prevention of electrical shock, before starting working on the product, be sure to wait at least 2 minutes after unplugging
the Power cord.
About the self-diagnostic functions for the drives
This unit has self-diagnostic functions for the drives in Service mode. Use the self-diagnostic functions to check the drives if
the problem symptom pointed out by the customer is a malfunction related to the drives or if a drive-related error is logged in
the error history.
For details on the self-diagnostic functions for the drives, see "[5] Drive self-diagnosis" and "[6] Contents of drive self-diagnosis"
in "6.1 SERVICE MODE."
About the Flash ROM (IC12) and USB-LAN Conversion IC (IC602) in the MAIN Assy
Replacement of the Flash ROM (IC12) and USB-LAN Conversion IC (IC602) in the MAIN Assy is not possible during service,
because writing of the MAC address on the production line is required and USB-LAN Conversion IC (IC602) has unique ID.
Therefore, the Flash ROM (IC12) and USB-LAN Conversion IC (IC602) are not supplied as a service part.
If the Flash ROM and USB-LAN Conversion IC are defective, replace the whole MAIN Assy.
After replacing the the MAIN Assy, writing of the serial number of the unit is required.
For details on how to write the serial number, see "8.3 WRITING THE SERIAL NUMBER OF THE UNIT."
About work required after replacement of the TM Assy 09SD-S
After replacement of the TM Assy 09SD-S, reset the LD lighting time to zero.
How to Reset: See "6 Drive LD life manual input" in "[3] Various displayed information" in "6.1 SERVICE MODE."
About transfer of the accumulated LD lighting time data after replacement of the MAIN Assy
This unit is equipped with self-diagnostic functions for the drives in Service mode. The service-life check for the laser
diode (for CDs/DVDs) among the self-diagnostic functions uses the accumulated lighting time for judgment. If it is
7,000 hours or less, the laser diode is judged as OK. The accumulated lighting time of the LD is stored in the Flash ROM
(IC12) in the MAIN Assy. Therefore, after replacement of the MAIN Assy, the accumulated lighting time of the LD is cleared
and proper judgment will not be possible after that. To avoid such a situation, when replacement of the
MAIN Assy is required, transfer the LD accumulated lighting time data.
Before replacement, confirm the drive LD lighting time in Service mode and take note of the time value. After replacement
is finished, enter Service mode then change the drive LD lighting time value to what you noted.
For details on how to confirm and change the LD lighting time, see "6 Drive LD life manual input" in "[3] Various displayed
information" in "6.1 SERVICE MODE."
About backup of the UTILITY settings
As this unit is provided with user-settable UTILITY settings (such as the Play mode setting,) it is recommended that you back
up the settings before starting repair. The settings can be stored for backup in a USB memory device or an SD card.
For details on how to back up and restore data, see "g How to Back Up and Restore the Settings" in "8.6 ITEMS FOR WHICH
USER SETTINGS ARE AVAILABLE."
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