Toshiba SD-2109 Service Manual - Page 4

1. OPERATING INSTRUCTIONS 2. LOCATION OF MAIN PARTS AND MECHANISM PARTS 2-1. Location of Main Parts 2-2. Location of Mechanism Parts CONTENTS SECTION 1 GENERAL DESCRIPTIONS 1-1 1-22 1-22 1-23 3. TROUBLESHOOTING 3-1. Main Circuit 3-1-1. Servo System 3.1-2. Location Diagram of Servo Test Point 1-26 1-26 1-26 1-33 SECTION 2 PART REPLACEMENT AND ADJUSTMENT PROCEDURES 1. REPLACEMENT OF MECHANICAL PARTS 2-1 1-2-4. Front PC Board 2-5 1-1. Cabinet Replacement 2-1 1-3. Mechanism Parts 2-6 1-1-1. Top Cover 2-1 1-3-1. Mechanism Chassis Assembly 2-6 1-1-2. Clamper Stay 2-1 1-3-2. Loading Belt 2-6 1-1-3. Tray Panel 2-2 1-3-3. Loading Motor 2-7 1-1-4. Front Panel and Tray 2-3 1-3-4. Sub Chassis (with a pickup mechanism) 2-7 1-1-5. Rear Panel 2-3 1-3-5. Pickup Mechanism Assembly 2-8 1-2. PC Board Replacement 2-4 1-3-6. Gear A Assembly, Gear B and 1-2-1. Main PC Board 2-4 Rack Gear Assembly 2-8 1-2-2. Output PC Board 2-4 1-3-7. Feed Motor 2-9 1-2-3. Power PC board 2-5 SECTION 3 SERVICING DIAGRAMS 1. STANDING PC BOARDS FOR SERVICING 2. CIRCUIT SYMBOLS AND SUPPLEMENTARY EXPLANATION 2-1. Precautions for Part Replacement 2-2. Solid Resistor Indication 2-3. Capacitance Indication 2-4. Inductor Indication 2-5. Waveform and Voltage Measurement 2-6. When Replaced ROM ICs or Upgraded Firmware 3. PRINTED WIRING BOARD AND SCHEMATIC DIAGRAM 4. BLOCK DIAGRAMS 4-1. Overall Block Diagram 4-2. Power Supply Block Diagram 4-3. Front Display, Power Switch Block Diagram 3-1 3-2 3-2 3-2 3-2 3-3 3-3 3-4 3-5 3-7 3-7 3-9 3-10 4-4. Main Block Diagrams 4-5. Output Block Diagram 5. CIRCUIT DIAGRAMS 5-1. Power Supply Circuit Diagram 5-2. Front Display, Power Switch Circuit Diagram 5-3. Main Circuit Diagram 5-4. Output Circuit Diagram 5-5. Motor System Circuit Diagrams 6. PC BOARDS 6-1. Power Supply PC Board 6-2. Power Switch PC Board 6-3. Main PC Board 6-4. Output PC Board 6-5. Front Display PC Board 3-13 1-17 3-18 3-18 3-21 3-24 3-41 3-45 3-47 3-47 3-48 3-49 3.59 3-63 SAFETY PRECAUTION NOTICE ABBREVIATIONS I. Integrated Circuit (IC) 2. Capacitor (Cap) 3. Resistor (Res) SECTION 4 PARTS LIST 4-1 4. EXPLODED VIEWS 4-2 4-1 4-L Packing Assembly 4-2 4-1 4-2. Chassis Assembly 4-3 4-1 4-3. Mechanism Assembly 4-4 4-1 5. PARTS LIST 4-5 4-1