Table Of Contents - Mitsubishi Electric DD-5000 Service Manual

1. PREPARATION FOR SERVICING ......................................... 1-1
2. LOCATION OF MAIN PARTS AND
MECHANISM PARTS ............................................................... 1-2
2-1. Location of Main Parts ....................................................... 1-2
2-2. Location of Mechanism Parts ............................................ 1-3
1. REPLACEMENT OF MECHANICAL PARTS ...................... 2-1
1-1. Cabinet Replacement .......................................................... 2-1
1-1-1. Top Cover ........................................................................ 2-1
1-1-2. Clamper Stay ................................................................... 2-1
1-1-3. Tray Panel ....................................................................... 2-2
1-1-4. Front Panel and Tray ..................................................... 2-3
1-1-5. Rear Panel ....................................................................... 2-3
1-2. PC Board Replacement ...................................................... 2-4
1-2-1. Main PC Board ............................................................... 2-4
1-2-2. Output PC Board ............................................................ 2-4
1-2-3. Power PC board .............................................................. 2-5
1. STANDING PC BOARDS FOR SERVICING ......................... 3-1
2. CIRCUIT SYMBOLS AND
SUPPLEMENTARY EXPLANATION ..................................... 3-2
2-1. Precautions for Part Replacement .................................... 3-2
2-2. Solid Resistor Indication .................................................... 3-2
2-3. Capacitance Indication ....................................................... 3-2
2-4. Inductor Indication ............................................................. 3-3
2-5. Waveform and Voltage Measurement .............................. 3-3
2-6. When Replaced ROM ICs or Upgraded Firmware ........ 3-4
3. PRINTED WIRING BOARD AND
SCHEMATIC DIAGRAM .......................................................... 3-5
4. BLOCK DIAGRAMS .................................................................. 3-7
4-1. Overall Block Diagram ...................................................... 3-7
4-2. Power Supply Block Diagram ........................................... 3-9
4-3. Front Display, Power Switch Block Diagram ................ 3-10
SAFETY PRECAUTION ................................................................. 4-1
NOTICE ............................................................................................. 4-1
ABBREVIATIONS ........................................................................... 4-1
1. Integrated Circuit (IC) ............................................................ 4-1
2. Capacitor (Cap) ....................................................................... 4-1
3. Resistor (Res) ........................................................................... 4-1
CONTENTS
SECTION 1
GENERAL DESCRIPTIONS
SECTION 2
PART REPLACEMENT AND ADJUSTMENT PROCEDURES
SECTION 3
SERVICING DIAGRAMS
SECTION 4
PARTS LIST
3. TROUBLESHOOTING .............................................................. 1-6
3-1. Main Circuit ........................................................................ 1-6
3-1-1. Servo System ................................................................... 1-6
3-1-2. Location Diagram of Servo Test Point ....................... 1-13
1-2-4. Front PC Board ............................................................... 2-5
1-3. Mechanism Parts ................................................................. 2-6
1-3-1. Mechanism Chassis Assembly ....................................... 2-6
1-3-2. Loading Belt .................................................................... 2-6
1-3-3. Loading Motor ................................................................ 2-7
1-3-4. Sub Chassis (with a pickup mechanism) ...................... 2-7
1-3-5. Pickup Mechanism Assembly ........................................ 2-8
1-3-6. Gear A Assembly, Gear B and
Rack Gear Assembly ...................................................... 2-8
1-3-7. Feed Motor ...................................................................... 2-9
4-4. Main Block Diagrams ....................................................... 3-13
4-5. Output Block Diagram ..................................................... 3-17
5. CIRCUIT DIAGRAMS ............................................................. 3-18
5-1. Power Supply Circuit Diagram ....................................... 3-18
5-2. Front Display, Power Switch Circuit Diagram .............. 3-21
5-3. Main Circuit Diagram ...................................................... 3-24
5-4. Output Circuit Diagram ................................................... 3-41
5-5. Motor System Circuit Diagrams ..................................... 3-47
6. PC BOARDS .............................................................................. 3-49
6-1. Power Supply PC Board ................................................... 3-49
6-2. Main PC Board ................................................................. 3-50
6-3. Output PC Board .............................................................. 3-55
4. EXPLODED VIEWS ................................................................... 4-2
4-1. Packing Assembly ............................................................... 4-2
4-2. Chassis Assembly ................................................................ 4-3
4-3. Mechanism Assembly ......................................................... 4-4
5. PARTS LIST ................................................................................ 4-5