Figure 1. Disk Memory Unit MU-768/G.
CHAPTER 1 INTRODUCTION - TM-11-7025-229-120011
DESTRUCTION OF ARMY ELECTRONICS MATERIEL - TM-11-7025-229-120012
Section II. EQUIPMENT DESCRIPTION AND DATA - TM-11-7025-229-120013
Figure 1-1. Disk Unite, Component Locations, Front Oblique View and Rear View
Table 1-2. Disk Unit Characteristics, Capabilities, and Features
Table 1-2. Disk Unit Characteristics, Capabilities, and Features-Continued
Table 1-3. Front Panel and Indicator Panel Controls and Indicators
Figure 1-2. Front Panel and Indicator Panel Controls and Indicators, Cut-Away View
Table 1-4. Rear Chassis Connectors
SAFETY PRECAUTIONS - TM-11-7025-229-120020
Section III. PRINCIPLES OF OPERATION
Figure 1-4. Processor/Disk Unit System Interface Configurations
Disk Controller PCB cont'd
Device Electronics PCB
Motor Control PCB
Indicator Panel
Head Disk Assembly cont'd
Power Supply - TM-11-7025-229-120028
Chapter 2 OPERATING INSTRUCTIONS - TM-11-7025-229-120029
DESCRIPTION OF OPERATOR'S CONTROLS AND INDICATORS
Section II. OPERATOR PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS)
Procedure column
Routine Services - TM-11-7025-229-120033
Table 2-1. Operator Preventive Maintenance Checks and Services - TM-11-7025-229-120034
Equipment Inspection and Maintenance Worksheet - TM-11-7025-229-120035
Section III. OPERATION UNDER USUAL CONDITIONS - TM-11-7025-229-120036
HDA CHANGE-OVER
HDA CHANGE-OVER cont'd
Figure - TM-11-7025-229-120039
Section IV. OPERATION UNDER UNUSUAL CONDITIONS - TM-11-7025-229-120040
Chapter 3 OPERATOR'S MAINTENANCE - TM-11-7025-229-120041
REMOVING AIR FILTERS
CHAPTER 4 ORGANIZATIONAL MAINTENANCE - TM-11-7025-229-120043
Section II. TROUBLESHOOTING
Table 4-1. Disk Unit Malfunction/Symptom Index
Figure 4-1. How to Use the Flowchart, Sample Flowchart - TM-11-7025-229-120046
TROUBLESHOOTING - TM-11-7025-229-120047
Noisy HDA Operation
SEL Indicator (UNIT SELECT) Won't Light
TROUBLESHOOTING FLOWCHART 1 - TM-11-7025-229-120050
PWR RDY INDICATOR NOT LIT (SHEET 2 OF 4)
PWR RDY INDICATOR NOT LIT (SHEET 3 OF 4)
PWR RDY INDICATOR NOT LIT (SHEET 4 OF 4)
TROUBLESHOOTING FLOWCHART 2 - TM-11-7025-229-120054
SLAVE DISK UNIT CANNOT BE ACCESSED BY HOST COMPUTER (SHEET 2 OF 4)
SLAVE DISK UNIT CANNOT BE ACCESSED BY HOST COMPUTER (SHEET 3 OF 4)
SLAVE DISK UNIT CANNOT BE ACCESSED BY HOST COMPUTER (SHEET 4 OF 4)
Section III. ORGANIZATIONAL MAINTENANCE PROCEDURES
Section IV. REMOVAL AND REPLACEMENT PROCEDURES - TM-11-7025-229-120059
INSTALLING DISK UNIT
REMOVING POWER CABLE - TM-11-7025-229-120061
INSTALLING POWER CABLE - TM-11-7025-229-120062
REMOVING I/O SIGNAL CABLES - TM-11-7025-229-120063
INSTALLING I/O SIGNAL CABLES - TM-11-7025-229-120064
CLEANING - TM-11-7025-229-120065
CHAPTER 5 PACKING FOR SHIPMENT OR STORAGE - TM-11-7025-229-120066
DISK UNIT PACKAGING AND PACKING
Figure 5-1. Packing a Typical Unit - TM-11-7025-229-120068
APPENDIX A REFERENCES - TM-11-7025-229-120069
REFERENCES - TM-11-7025-229-120070
APPENDIX B MAINTENANCE ALLOCATION CHART FOR DISK MEMORY UNIT MU-768/G
Overhaul
TOOL AND TEST EQUIPMENT REQUIREMENTS (SECTION III) - TM-11-7025-229-120073
SECTION II. MAINTENANCE ALLOCATION CHART FOR DISK MEMORY UNIT MU-768/G - TM-11-7025-229-120074
SECTION II. MAINTENANCE ALLOCATION CHART FOR DISK MEMORY UNIT MU-768/G - TM-11-7025-229-120075
SECTION III TOOL AND TEST EQUIPMENT REQUIREMENTS FOR DISK MEMORY UNIT -768/G
SECTION IV. REMARKS FOR DISK MEMORY UNIT MU-768/G
APPENDIX E EXPENDABLE SUPPLIES AND MATERIALS LIST - TM-11-7025-229-120078
SECTION II. EXPENDABLE SUPPLIES AND MATERIALS LIST - TM-11-7025-229-120079
GLOSSARY - TM-11-7025-229-120080
GLOSSARY - Continued
TM-11-7025-229-12 Disk Memory Unit MU-768/G (NSN 7025-01-155-0172) Manual
CHAPTER 1 INTRODUCTION - TM-11-7025-229-120011
DESTRUCTION OF ARMY ELECTRONICS MATERIEL - TM-11-7025-229-120012
Section II. EQUIPMENT DESCRIPTION AND DATA - TM-11-7025-229-120013
Figure 1-1. Disk Unite, Component Locations, Front Oblique View and Rear View
Table 1-2. Disk Unit Characteristics, Capabilities, and Features
Table 1-2. Disk Unit Characteristics, Capabilities, and Features-Continued
Table 1-3. Front Panel and Indicator Panel Controls and Indicators
Figure 1-2. Front Panel and Indicator Panel Controls and Indicators, Cut-Away View
Table 1-4. Rear Chassis Connectors
SAFETY PRECAUTIONS - TM-11-7025-229-120020
Section III. PRINCIPLES OF OPERATION
Figure 1-4. Processor/Disk Unit System Interface Configurations
Disk Controller PCB cont'd
Device Electronics PCB
Motor Control PCB
Indicator Panel
Head Disk Assembly cont'd
Power Supply - TM-11-7025-229-120028
Chapter 2 OPERATING INSTRUCTIONS - TM-11-7025-229-120029
DESCRIPTION OF OPERATOR'S CONTROLS AND INDICATORS
Section II. OPERATOR PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS)
Procedure column
Routine Services - TM-11-7025-229-120033
Table 2-1. Operator Preventive Maintenance Checks and Services - TM-11-7025-229-120034
Equipment Inspection and Maintenance Worksheet - TM-11-7025-229-120035
Section III. OPERATION UNDER USUAL CONDITIONS - TM-11-7025-229-120036
HDA CHANGE-OVER
HDA CHANGE-OVER cont'd
Figure - TM-11-7025-229-120039
Section IV. OPERATION UNDER UNUSUAL CONDITIONS - TM-11-7025-229-120040
Chapter 3 OPERATOR'S MAINTENANCE - TM-11-7025-229-120041
REMOVING AIR FILTERS
CHAPTER 4 ORGANIZATIONAL MAINTENANCE - TM-11-7025-229-120043
Section II. TROUBLESHOOTING
Table 4-1. Disk Unit Malfunction/Symptom Index
Figure 4-1. How to Use the Flowchart, Sample Flowchart - TM-11-7025-229-120046
TROUBLESHOOTING - TM-11-7025-229-120047
Noisy HDA Operation
SEL Indicator (UNIT SELECT) Won't Light
TROUBLESHOOTING FLOWCHART 1 - TM-11-7025-229-120050
PWR RDY INDICATOR NOT LIT (SHEET 2 OF 4)
PWR RDY INDICATOR NOT LIT (SHEET 3 OF 4)
PWR RDY INDICATOR NOT LIT (SHEET 4 OF 4)
TROUBLESHOOTING FLOWCHART 2 - TM-11-7025-229-120054
SLAVE DISK UNIT CANNOT BE ACCESSED BY HOST COMPUTER (SHEET 2 OF 4)
SLAVE DISK UNIT CANNOT BE ACCESSED BY HOST COMPUTER (SHEET 3 OF 4)
SLAVE DISK UNIT CANNOT BE ACCESSED BY HOST COMPUTER (SHEET 4 OF 4)
Section III. ORGANIZATIONAL MAINTENANCE PROCEDURES
Section IV. REMOVAL AND REPLACEMENT PROCEDURES - TM-11-7025-229-120059
INSTALLING DISK UNIT
REMOVING POWER CABLE - TM-11-7025-229-120061
INSTALLING POWER CABLE - TM-11-7025-229-120062
REMOVING I/O SIGNAL CABLES - TM-11-7025-229-120063
INSTALLING I/O SIGNAL CABLES - TM-11-7025-229-120064
CLEANING - TM-11-7025-229-120065
CHAPTER 5 PACKING FOR SHIPMENT OR STORAGE - TM-11-7025-229-120066
DISK UNIT PACKAGING AND PACKING
Figure 5-1. Packing a Typical Unit - TM-11-7025-229-120068
APPENDIX A REFERENCES - TM-11-7025-229-120069
REFERENCES - TM-11-7025-229-120070
APPENDIX B MAINTENANCE ALLOCATION CHART FOR DISK MEMORY UNIT MU-768/G
Overhaul
TOOL AND TEST EQUIPMENT REQUIREMENTS (SECTION III) - TM-11-7025-229-120073
SECTION II. MAINTENANCE ALLOCATION CHART FOR DISK MEMORY UNIT MU-768/G - TM-11-7025-229-120074
SECTION II. MAINTENANCE ALLOCATION CHART FOR DISK MEMORY UNIT MU-768/G - TM-11-7025-229-120075
SECTION III TOOL AND TEST EQUIPMENT REQUIREMENTS FOR DISK MEMORY UNIT -768/G
SECTION IV. REMARKS FOR DISK MEMORY UNIT MU-768/G
APPENDIX E EXPENDABLE SUPPLIES AND MATERIALS LIST - TM-11-7025-229-120078
SECTION II. EXPENDABLE SUPPLIES AND MATERIALS LIST - TM-11-7025-229-120079
GLOSSARY - TM-11-7025-229-120080
GLOSSARY - Continued
TM-11-7025-229-12 Disk Memory Unit MU-768/G (NSN 7025-01-155-0172) Manual
