Table Of Contents - NEC D2246 Maintenance Manual

Contents (cont'd)
Chapter 4 Removal and Replacement Procedures
Page
4.1 G9QST (Logic and Servo) PCB Removal .............................. 4-1
4.2 G9QSN (Read/Write) PCB Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 4-3
4.3 Earth Pad Assembly Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 4-3
4.4 G9QSQ (Power Amplifier) PCB Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 4-4
4.5 Motor Stator Assembly Removal ..................................... 4-6
Chapter 5 Adjustments
5.1 Required Tools... . ........ .... . ............. ............. . .. ....... 5-1
5.2 Servo Offset Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 5-1
5.3 Seek Speed Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 5-3
Chapter 6 Illustrated Parts Breakdown. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..
5-1
Chapter 7 DKUOOO-H3PM 3-Input DC Regulator Option
7.1 General Description....... . .... ....... . ..... .. . ... .... .... . ... ... .. 7-1
7.2 Interface Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 7-2
7.2.1 DC Power Connector (P4) ..................................... 7-2
7.2.2 Signal Ground Terminal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 7-3
7.2.3 DC Power Input Requirements ................................. 7-3
7.3 Installing the 3-Input DC Power Regulator. . . . . . . . . . . . . . . . . . . . . . . . . . . .. 7-4
Chapter 8 DKU-HDPI Dual-Port Interface Option
8.1 General Description ................................................ 8-1
8.2 Switches and Indicators ............................................. 8-2
8.2.1 Port A (Route 0) Switches and Indicators. . . . . . . . . . . . . . . . . . . . . . . .. 8-3
8.2.2 Port B (Route 1) Switches and Indicators. . . . . . . . . . . . . . . . . . . . . . . .. 8-3
8.2.3 Release Timer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 8-3
8.3 Drive Selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 8-3
8.4 Interface .......................................................... 8-4
8.5 Status Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 8-4
8.5.1 Release Command ............................................ 8-4
8.5.2 Priority Select. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 8-4
8.6 Installing the Dual-Port Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 8-7
Appendix A Schematic Diagrams
A.1 Signal Tracing Scheme .............................................. A-I
A.2 Drawings......................................................... A-I
Appendix B Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. B-1
IV