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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 ..........................................................................................................................................................3
2. SPECIFICATIONS .................................................................................................................................................................6
3. BASIC ITEMS FOR SERVICE...............................................................................................................................................7
3.1 CHECK POINTS AFTER SERVICING............................................................................................................................7
3.2 JIGS LIST .......................................................................................................................................................................8
3.3 PCB LOCATIONS .........................................................................................................................................................10
4. BLOCK DIAGRAM...............................................................................................................................................................12
4.1 OVERALL WIRING DIAGRAM......................................................................................................................................12
4.2 SIGNAL ROUTE BLOCK DIAGRAM ............................................................................................................................13
4.3 POWER BLOCK DIAGRAM..........................................................................................................................................14
5. DIAGNOSIS.........................................................................................................................................................................15
5.1 POWER ON SEQUENCE .............................................................................................................................................15
5.2 TROUBLESHOOTING ..................................................................................................................................................16
5.3 JLCD ASSY DIAGNOSIS METHOD .............................................................................................................................24
5.4 VOLTAGE MONITORING CIRCUIT ..............................................................................................................................30
5.5 ERROR CODE DISPLAY ..............................................................................................................................................32
5.6 CONNECTION CONFIRMATION WITH THE PC .........................................................................................................32
5.7 ABOUT LED..................................................................................................................................................................34
6. SERVICE MODE .................................................................................................................................................................37
6.1 SERVICE MODE...........................................................................................................................................................37
6.2 JOG LCD CALIBRATION ..............................................................................................................................................37
6.3 ABOUT THE DEVICE ...................................................................................................................................................48
7. DISASSEMBLY....................................................................................................................................................................49
8. EACH SETTING AND ADJUSTMENT ................................................................................................................................69
8.1 NECESSARY ITEMS TO BE NOTED ...........................................................................................................................69
8.2 UPDATING OF THE FIRMWARE .................................................................................................................................70
8.3 WRITING THE SERIAL NUMBER OF THE UNIT ........................................................................................................71
8.4 JOG DIAL ROTATION LOAD ADJUSTMENT ...............................................................................................................72
8.5 TEMPO ZERO POINT ADJUSTMENT .........................................................................................................................75
8.6 USER SETABLE ITEMS ...............................................................................................................................................76
9. EXPLODED VIEWS AND PARTS LIST...............................................................................................................................78
9.1 PACKING SECTION .....................................................................................................................................................78
9.2 CHASSIS SECTION .....................................................................................................................................................80
9.3 CONTROL PANEL (1/2) SECTION...............................................................................................................................82
9.4 CONTROL PANEL (2/2) SECTION...............................................................................................................................84
9.5 DISPLAY SECTION ......................................................................................................................................................86
9.6 JOG DIAL SECTION.....................................................................................................................................................88
Since the fuse may be neutral of the mains supply, disconnect the mains to de-energize the phase conductors.
Caution
