Service manual

CONTENTS
• SPECIFICATIONS
• BLOCK DIAGRAM
• CARE AND MAINTENANCE
• OVERVIEW
• FLASH CODE
• CIRCUIT THEORY
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POWER SUPPLY
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RESET LOGIC
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CLOCK CIRCUITS
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MICROPROCESSOR CONTROL OF RAM AND ROM
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SERIAL INTERFACE
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MICROPROCESSOR R/W AND MOTOR CONTROL LOGIC
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READ/WRITE CONTROL LOGIC
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READ AMPLIFIER
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WRITE AMPLIFIER
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POWER UP/DOWN WRITE PROTECTION
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STEPPER MOTOR CONTROL CIRCUITS
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SPINDLE MOTOR CONTROL CIRCUITS
• TROUBLESHOOTING GUIDE
• RESISTANCE CHECKS
• CASEWORK/ACCESSORY PARTS LIST
• MODEL INDENTIFICATION
• DEVICE NUMBER CHANGE
• PC ASSEMBLY 1540001
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BOARD LAYOUT
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PARTS LIST
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PIN CONFIGURATIONS
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SCHEMATIC
• PC ASSEMBLY 1540048
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BOARD LAYOUT
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PARTS LIST
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UPGRADE NOTES
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SCHEMATIC
• PC ASSEMBLY 250442, 250446
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BOARD LAYOUT
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PARTS LIST
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IC PINOUTS AND INTERNAL DIAGRAMS
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SCHEMATIC
• POWER SUPPLY ASSEMBLY 154002
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PARTS LIST
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TRANSFORMER
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ASSEMBLY DRAWING
• ALPS DRIVE ASSEMBLY
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PARTS LIST
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WIRING DIAGRAM AND LAYOUT
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MOTOR CONTROL PCB SCHEMATIC
• NEWTRONICS DRIVE ASSEMBLY
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PARTS LIST
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WIRING DIAGRAM AND LAYOUT
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MOTOR CONTROL PCB SCHEMATIC