AlphaTheta DJM-V10 - SAFETY INFORMATION

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SAFETY INFORMATION
CONTENTS
SAFETY INFORMATION..........................................................................................................................................................2
1. SERVICE PRECAUTIONS ....................................................................................................................................................3
1.1 NOTES ON SOLDERING ...............................................................................................................................................3
1.2 NOTES ON REPLACING................................................................................................................................................3
1.3 SERVICE NOTICE ..........................................................................................................................................................4
2. SPECIFICATIONS .................................................................................................................................................................5
3. BASIC ITEMS FOR SERVICE...............................................................................................................................................6
3.1 CHECK POINTS AFTER SERVICING............................................................................................................................6
3.2 JIGS LIST .......................................................................................................................................................................7
3.3 PCB LOCATIONS .........................................................................................................................................................10
4. BLOCK DIAGRAM...............................................................................................................................................................13
4.1 OVERALL WIRING DIAGRAM (1/2) .............................................................................................................................13
4.2 OVERALL WIRING DIAGRAM (2/2) .............................................................................................................................14
4.3 OVERALL BLOCK DIAGRAM.......................................................................................................................................15
4.4 DSP BLOCK DIAGRAM................................................................................................................................................16
4.5 POWER BLOCK DIAGRAM..........................................................................................................................................17
5. DIAGNOSIS.........................................................................................................................................................................18
5.1 POWER ON SEQUENCE .............................................................................................................................................18
5.2 MATRIX INFORMATION ...............................................................................................................................................20
5.3 TROUBLESHOOTING ..................................................................................................................................................22
5.4 INFORMATION ON POWER DIAGNOSTICS...............................................................................................................40
5.5 CUEVR ASSY DIAGNOSIS METHOD .........................................................................................................................42
5.6 STARTUP ERROR DISPLAY ........................................................................................................................................44
5.7 CONNECTION CHECK WITH EACH INTERFACE ......................................................................................................46
6. SERVICE MODE .................................................................................................................................................................47
6.1 TEST MODE .................................................................................................................................................................47
6.2 CROSSFADER CALIBRATION.....................................................................................................................................71
6.3 ABOUT THE DEVICE ...................................................................................................................................................75
7. DISASSEMBLY....................................................................................................................................................................76
8. EACH SETTING AND ADJUSTMENT ..............................................................................................................................106
8.1 NECESSARY ITEMS TO BE NOTED .........................................................................................................................106
8.2 UPDATING OF THE FIRMWARE ...............................................................................................................................107
8.3 WRITING THE SERIAL NUMBER OF THE UNIT .......................................................................................
...............108
8.4 USER SETABLE ITEMS .............................................................................................................................................109
9. EXPLODED VIEWS AND PARTS LIST.............................................................................................................................111
9.1 PACKING SECTION ...................................................................................................................................................111
9.2 EXTERIOR SECTION.................................................................................................................................................113
9.3 CHASSIS SECTION (1/2)...........................................................................................................................................115
9.4 CHASSIS SECTION (2/2)...........................................................................................................................................117
9.5 CONTROL PANEL SECTION (1/3).............................................................................................................................119
9.6 CONTROL PANEL SECTION (2/3).............................................................................................................................121
9.7 CONTROL PANEL SECTION (3/3).............................................................................................................................123
Since the fuse may be neutral of the mains supply, disconnect the mains to de-energize the phase conductors.
Caution
This service manual is intended for qualified service technicians; it is not meant for the casual do-it-
yourselfer. Qualified technicians have the necessary test equipment and tools, and have been trained
to properly and safety repair complex products such as those covered by this manual.
Improperly performed repairs can adversely affect the safety and reliability of the product and may
void the warranty. If you are not qualified to perform the repair of this product properly and safety,
you should not risk trying to do so and refer the repair to a qualified service technician.