1 GENERAL PRECAUTIONS 31.1. Safety Precautions 31.2. Electrical Tests 31.3. For Service Technicians 31.4. About Lead Free Solder (PbF: Pb free) 42 SPECIFICATIONS 52.1. KV-S2025C/S2045C Series 52.2. KV-SU225C/SU245C Series 63 COMPONENT IDENTIFICATION 74 INSTALLATION 84.1. Minimum Space Requirements 84.2. Installing Feed Extension Tray and Exit Extension Tray(Only for KV-S2045C/SU245C Series) 84.3. Connecting the Scanner to a Personal Computer 94.4. System Requirements 94.5. SCSI Setting (Only for KV-S2025C/S2045C Series) 105 SECTIONAL VIEWS 115.1. CIS (Contact Image Sensor) 115.2. Rollers 125.3. Circuit Boards 135.4. Sensor Boards and Switch 146 MECHANICAL FUNCTION 156.1. Feed Mechanism for KV-S2025C/SU225C Series 156.2. Feed Mechanism for KV-S2045C/SU245C Series 167 MAINTENANCE 177.1. Maintenance Chart 177.2. Cleaning 177.3. Replacing Limited Life Parts 258 DISASSEMBLY INSTRUCTIONS 308.1. Disassembly Flowchart 308.2. Exterior 328.3. Unit Components 418.4. Circuit Board Assemblies 549 SERVICE UTILITY & SELF TEST 609.1. Main Menu Indication for Service Utility 609.2. Function item list of Service Utility 619.3. Operation 629.4. Scanner Self-test 6810 TROUBLESHOOTING 6910.1. Troubleshooting -1 (with no error message on PC) 6910.2. Troubleshooting -2 (according to Error Code or ScannerStatus in Service Utility) 6910.3. Requirement After Parts Replacement 7911 CIRCUIT DESCRIPTION 8011.1. Block Diagram - 1 (Image Processing) 8011.2. Block Diagram - 2 (Board) 8211.3. Explanation of Connector 8312 CIRCUIT BOARDS 9012.1. CONTROL Board 9112.2. POWER Board 9312.3. POWER SW Board 9412.4. STARTING POSITION SENSOR Board 9412.5. WAITING SENSOR Board 9412.6. ENDING SENSOR Board 9412.7. RELAY (FRONT) Board 9512.8. RELAY (BACK) Board 9512.9. LED Board 9513 SCHEMATIC DIAGRAM 9713.1. CONTROL Board 9813.2. POWER Board, POWER SW Board 11013.3. Sensors (Others) 11314 PARTS LOCATION AND MECHANICAL PARTS LIST 11514.1. Exterior 11614.2. Chassis and Base 11814.3. Hopper Unit 12014.4. Power Unit 12214.5. Packing 12415 REPLACEMENT PARTS LIST 12815.1. CONTROL Board 12815.2. POWER Board 13415.3. POWER SW Board 13415.4. STARTING POSITION SENSOR Board 13415.5. WAITING SENSOR Board 13515.6. ENDING SENSOR Board 13515.7. RELAY (FRONT) Board 13515.8. RELAY (BACK) Board 13515.9. LED Board 135CONTENTS Page Page2KV-S2025C Series / KV-SU225C Series / KV-S2045C Series / KV-SU245C Series