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  8200823IDigora ®  fmx Service Manual 1. CONTENTS Digora ® fmx Service Manual Medical Device Directive93/42/EEC04 / 2003Digora ® fmx - Service ManualDocument code 8200823Original approved English language versionManufactured by SOREDEXP.O. BOX 25000031 HELSINKI, FINLANDTel. +358 010 394 820 Fax +358 9 701 5261  1. CONTENTSDigora ®  fmx Service ManualII8200823Windows™ is a trademark of Microsoft Corporation.Digora ®  is a registered trademark of Soredex.Soredex endeavours to produce product documentation that is accurate and up todate. However, our policy of continual product development may result in changes toproducts that are not reflected in the product documentation. Therefore, this docu-ment should not be regarded as an infallible guide to current product specifications.Soredex maintains the right to make changes and alterations without prior notice.  8200823IIIDigora ®  fmx Service Manual 1. CONTENTS Contents 1. ABOUT THIS MANUAL......................................................................................1-1 Main Mechanical Assemblies.............................................................................1-2 2. WARNINGS AND SYMBOLS.............................................................................2-1 2.1 Dangerous voltages.....................................................................................2-12.2 Laser radiation.............................................................................................2-22.3 Safety/service switch operation....................................................................2-22.4 Precautions with the imaging plates..............................................................2-32.5 Weight of the scanner...................................................................................2-32.6 Fragile components......................................................................................2-42.7 Responsibility...............................................................................................2-42.8 Unauthorized modifications..........................................................................2-42.9 Symbols.......................................................................................................2-52.10 Warnings....................................................................................................2-62.11 Dimensions (with optional Autoloader).......................................................2-6 3. COVERS AND TYPE LABEL.............................................................................3-1 3.1 Opening the covers......................................................................................3-13.2 Closing the covers........................................................................................3-53.3 Type Label...................................................................................................3-6 4. FUNCTIONAL DESCRIPTION...........................................................................4-1 4.1 Functional Description..................................................................................4-14.2 Imaging plate principle..................................................................................4-24.3 X-ray film and intensifying screen..................................................................4-24.4 The Imaging plate.........................................................................................4-24.5 The scanner.................................................................................................4-34.6 Noise...........................................................................................................4-34.7 Preread........................................................................................................4-44.8 Main functions..............................................................................................4-4 5. TRANSPORT UNIT............................................................................................5-1 5.1 Possible problems.......................................................................................5-25.1.1 Cleaning the screw shaft.......................................................................5-25.2 The flywheel..................................................................................................5-55.2.1 Adjusting the plastic tongue..................................................................5-55.2.2 Aligning the shaft..................................................................................5-65.3 Light collecting tube adjustment....................................................................5-6 6. LASER DIODE ASSEMBLY...............................................................................6-1 6.1 Laser alignment............................................................................................6-16.2 Laser diode assembly replacement..............................................................6-2  1. CONTENTSDigora ®  fmx Service ManualIV8200823 7. GALVANOMETER..............................................................................................7-18. OPTICAL COMPONENTS..................................................................................8-1 8.1 Mirrors and lens assemblies.........................................................................8-28.2 Slotted optical switch....................................................................................8-28.3 Reflective sensor..........................................................................................8-28.4 Adjustment of reflective sensor.....................................................................8-3 9. PREREAD LENS MOTOR..................................................................................9-110. ELECTRICAL DESCRIPTION DXR-40 XXX-02............................................10-1 10.1 Functions connected to T4101 stepper drive and HV supply PCB.............10-110.2 Functions connected to P4000-2 microprocessor PCB............................10-110.3 Functions connected to T4501 key and display PCB................................10-210.4 The PC boards.........................................................................................10-2 11. PROCESSOR BOARDS P4001 AND P4000-2...............................................11-1 11.1 Functional description; Main Features:.......................................................11-111.3 CPU interface............................................................................................11-211.3 Photo multiplier amplifier...........................................................................11-211.4 Adjustment of manual potentiometers.........................................................11-311.5 Galvanometer driver..................................................................................11-411.6 Plate detector............................................................................................11-611.7 Test points.................................................................................................11-711.8 Led indicators...........................................................................................11-711.9 P4000-2 connector pinouts........................................................................11-8P4001 Processor board, circuit diagram....................................................11-11P4001 Processor board, circuit diagram....................................................11-12P4001 Processor board, circuit diagram....................................................11-13P4001 Processor board, circuit diagram....................................................11-14P4001 Processor board, component layout................................................11-15P4000-1 Processor board, circuit diagram.................................................11-16P4000-1 Processor board,circuit diagram..................................................11-17P4000-1 Processor board, circuit diagram.................................................11-18P4000-1 Processor board, circuit diagram.................................................11-19P4000-2 Processor board..........................................................................11-20 12. STEPPER DRIVE AND HIGH VOLTAGE SUPPLY T4101.............................12-1 12.1 Functional description..............................................................................12-1Main features..............................................................................................12-112.2 High voltage power supply........................................................................12-1Specifications:............................................................................................12-112.3 Control signals.........................................................................................12-212.4 Micro stepper interface.............................................................................12-212.5 Test points................................................................................................12-312.6 Laser and photomultiplier high voltage control...........................................12-4Circuit Diagram for T4101 Stepper drive and high voltage supply................12-5Circuit Diagram for Stepper drive and high voltage supply T4101................12-6Circuit Diagram for Stepper Drive and high voltage supply T4101...............12-7Component layout for T4101 Stepper drive and high voltage supply.............12-8
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