AlphaTheta DJM-V10 - 1.3 SERVICE NOTICE

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1.3 SERVICE NOTICE
g Voltage monitoring
This unit always monitors for power failure and will shut itself off immediately after an error is detected.
If a power is defect, MIDI START/STOP (WAKE UP) LED is flashing in a cycle of 250 ms (light on 125 ms and light off 125 ms).
Other LEDs light off, and SW and VR become not working.
Repair the unit according to the diagnostic procedures described in "5.4 INFORMATION ON POWER DIAGNOSTICS."
g Confirmation of user-setting
This product has [UTILITY] and [MY SETTINGS] settings that can be set by the user.
[MY SETTINGS] is a setting for DJ and can be saved to a storage device (USB drive, etc.).
[UTILITY] and [MY SETTINGS] settings can be saved in the product as [OWNER SETTING] setting and can be loaded
at any time.
Check and save each setting before repairing.
Use the Check Sheet in "8.4 USER SETABLE ITEMS" to which you can transcribe the [UTILITY] settings
(Start up/[OWNER SETTING]), as required.
The settings are stored in FLASH ROM (64Mb) (IC1502) on the MAIN Assy.
For details, refer to "Changing the settings" in the Instruction Manual.
g Flash ROM in the MAIN Assy
Replacement of the FLASH ROM (IC1502) on the MAIN Assy are not possible during service, because writing of the
MAC address on the production line is required. If the IC is defective, replace the whole MAIN Assy.
This FLASH ROM contains data that can only be written in at the factory.
An IEEE 802.3-based MAC address specific to this unit has been written.
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."
g MAIN Assy replacement
Perform the following correspondence surely if you change the MAIN Assy.
! Execution of the writing the serial number of the Unit
For details on how to write the serial number, see "8.3 WRITING THE SERIAL NUMBER OF THE UNIT."
! Execution of the Crossfader calibration
See "6.2 CROSSFADER CALIBRATION."
g Cross Fader Service Assy replacement
Noncontact faders are adopted for the cross faders with this product. Compared with conventional contact-type cross faders,
noncontact faders offer dozens of times the durability.
Because high accuracy is required for assembly of the fader section, the service part of this section will be supplied as
a whole Assy. Use the
Cross Fader Service Assy (DEA1096) for replacement.
After replacement, be sure to perform Crossfader calibration.
See "6.2 CROSSFADER CALIBRATION."
If you don't, the unit may not start up properly.
Even when replacing MAIN Assy, it is necessary to do calibration.
The settings are stored in FLASH ROM (64Mb) (IC1502) on the MAIN Assy.
g About LED replacement on the Control panel
If you replace LED on the Control panel alone, be sure to confirm if there are any major differences in color and brightness
from the surrounding LEDs of the same color.
If there is a difference, replace the other LEDs at the same time.