GE Medical Systems PRODIGY Service Manual
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GE Medical Systems PRODIGY Service Manual

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PRODIGY
Service Manual
Part Number: LUN7396
Revision: C

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Summary of Contents for GE Medical Systems PRODIGY

  • Page 1 PRODIGY Service Manual Part Number: LUN7396 Revision: C...
  • Page 2 This page left blank intentionally. Prodigy Service Manual...
  • Page 3 Support Department prior to attempting any servicing: 608-828--2663 608-826-7107 (Fax) is a registered trademark of General Electric Company. PRODIGY® is a trademark of GE-LUNAR Corporation. Windows NT® is a trademark of Microsoft Corporation Copyright© 2000 by GE-LUNAR Corporation. Madison, Wisconsin. All rights reserved.
  • Page 4 This page left blank intentionally. Prodigy Service Manual...
  • Page 5 READ THIS FIRST Using This Manual: A person who will be performing service work on the PRODIGY should use this manual in the following manner: Read the Safety and Overview Chapters to familiarize yourself with the scanner as a whole and with the general function of the circuit boards.
  • Page 6 (Alignment Test etc.) will also help to improve the accuracy of our diagnosis: For problems with specific patient scans, it is recommended that you copy the scan files to diskette, and send it, with a description of the problem, to the Applications Department at GE - LUNAR. Prodigy Service Manual...

  • Page 7: Table Of Contents

    1.7.7 Wall outlet configuration (system no. DF+11999 and lower) . . 1-27 Figure 1-1. The PRODIGY Display Panel ..... . . 1-19 Figure 1-2.
  • Page 8 Figure 1-7. Potential Pinch Points on the PRODIGY ....1-23 Figure 1-8. PRODIGY Iso-Dose Diagram ......1-25 This document contains confidential or proprietary information of GE-Lunar Corp.

  • Page 9: General Safety

    LUNAR personnel. • In order to maintain electrical safety and electromagnetic compatibility, the Lunar PRODIGY is only to be connected to a computer, printer, and peripherals that are certified to be compliant with IEC 950/EN 60950 Safety of information technology equipment, including electrical business equipment and IEC 601-1-2 Medical electrical equipment, Part 1: General requirements for safety, 2.

  • Page 10: Internal Symbols

    Type B Equipment: shows that the scanner has Type B protection against electrical shock. 1.1.2 Internal Symbols • The following symbols are found inside the PRODIGY, and in the Service Manual. Protective Earth: shows the location of a Protective Earth Terminal.
  • Page 11 This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp. PRODIGY Service Manual (Rev C - 2000) Safety1-17...
  • Page 12 This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp. 1-18 Safety PRODIGY Service Manual (Rev C - 2000)

  • Page 13: Emergency Stop Button

    This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp. PRODIGY Service Manual (Rev C - 2000) Safety1-19...

  • Page 14: Laser Exposure

    Laser Exposure • The PRODIGY is equipped with a Class II Laser device. This laser is used for patient positioning. A Class II rating indicates a low power visible laser that is not normally hazardous to eyesight but has the potential to be hazardous if viewed directly for an extended period of time.

  • Page 15: Shutter Indicator

    Note: When the x-ray on / shutter open symbol appears in literature associated with the PRODIGY scanner, it will be used to indicate that the procedure being described results in an open- shutter condition. During these times personnel should exercise caution to avoid excessive exposure to the X-rays.

  • Page 16: Warning Statements

    This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp. 1-22 Safety PRODIGY Service Manual (Rev C - 2000)

  • Page 17: Laser Safety

    Figure 1-7. Potential Pinch Points on the PRODIGY Do not touch the AC Surge Suppressor (located on the AC terminal block) it may be hot. Do not electrically connect the isolation transformer bolt head to ground, doing this will short out the transformer Scan table isolated outlet strip must be appropriately connected.

  • Page 18: Radiation Safety

    Specifications manual shows irradiation times and skin entrance doses. 1.6.4 Scatter Radiation • There is some scatter radiation from the PRODIGY when it is running. Figure 1-8 shows the radiation dosages while the scanner is running at 3.00 mA at certain distances.

  • Page 19: Figure 1-8. Prodigy Iso-Dose Diagram

    This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp. PRODIGY Service Manual (Rev C - 2000) Safety1-25...

  • Page 20: Controlling Computer And Accessories

    This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp. 1-26 Safety PRODIGY Service Manual (Rev C - 2000)

  • Page 21: Small Room Configuration (System No. Df+12000 And Higher)

    This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp. PRODIGY Service Manual (Rev C - 2000) Safety1-27...
  • Page 22 This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp. 1-28 Safety PRODIGY Service Manual (Rev C - 2000)
  • Page 23 2.0 PRODIGY System ........
  • Page 24 2.11.6 Detector Mother Board Operation ....1-72 2.12 FOINK (PRODIGY I Systems DF+11999 and lower only) ..1-74 2.12.1 FOINK Functions .
  • Page 25 2.15 X-Ray Collimator Subsystem ......1-78 2.16 PRODIGY Specifications ....... . 1-79 2.16.1 Component specifications .
  • Page 26 This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp. 2-32 System Overview PRODIGY Service Manual (Rev C - 2000)

  • Page 27: Prodigy System

    PRODIGY System The PRODIGY includes the patient table and frame, X-ray tube, X-ray generator, detector, and arm. Its physical specifications are summarized in section 2.15. The PRODIGY has a mechanical design with two separate motion systems that are capable of simultaneous operation. These are transverse, and longitudinal.
  • Page 28 This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp. 2-34 System Overview PRODIGY Service Manual (Rev C - 2000)

  • Page 29: Electronics

    Detector Mother Board. These devices have a high resistance when cold and decrease in resistance when warm. Figure 2-10. PRODIGY I NTC thermistor on the Primary Terminal Block • A cool down period of 30 seconds is required before power is turned on on the system.

  • Page 30: Scan Arm

    • Scanner Table alone: <100 microamperes. Scanner input power • PRODIGY I ONLY: The scanner has 12 different nominal inputs: 100, 110, 115, 120, 125, 127, 200, 220, 230, 240, 250, and 254 VAC. During installation, the scanner is configured for the nominal input which best matches the voltage on site.
  • Page 31 • PRODIGY II ONLY: The scanner can accept any AC input between 100 and 254 VAC. • Voltage may fluctuate ±10% from the nominal value without a loss of scanner performance. • The nominal input (range of inputs) can be found on the system label.

  • Page 32: Prodigy Block Diagrams

    PRODIGY Block Diagrams The block diagrams for the PRODIGY system follow: 2.2.1 PRODIGY I (System numbers DF+11999 and lower) Power Distribution Block Diagram (AC entrance) Figure 2-11. PRODIGY I Power Distribution Block Diagram This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp.

  • Page 33: Prodigy System Block Diagram Prodigy I System Block

    2.2.2 PRODIGY System Block Diagram PRODIGY I System Block Diagram Figure 2-12. PRODIGY I (systems DF+11999 and lower) Block Diagram This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp.

  • Page 34: Prodigy I Peripheral Configuration Block Diagrams

    2.2.3 PRODIGY I Peripheral Configuration Block Diagrams Figure 2-13. PRODIGY I (Systems DF+11999 and lower) Peripheral Configuration Block Diagrams This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp.

  • Page 35: Prodigy Ii System / Power Block Diagram

    2.2.4 PRODIGY II System / Power Block Diagram Figure 2-14. PRODIGY II System / Power Block Diagram This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp.

  • Page 36: Prodigy Fusing

    5x20MM MAX PCB F1 F 0.5 AL 1/4x1 1/4 in. All fuses are 250V, low breaking capacity (25A minimum) Table 2-1. PRODIGY I (Systems DF+11999 and lower) Fuses PRODIGY II (systems DF+12000 and greater) Fuses Fuse Rating Type Condor PS F3.15 AH...

  • Page 37: Prodigy I (System Numbers Df+11999 And Lower) Single Board

    This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp. System Overview 2-43 PRODIGY Service Manual (Rev C - 2000)

  • Page 38: Sbc / Host Pc Interface

    Host PCs expansion slots and the port must be configured correctly for the PRODIGY to operate correctly (see DXPC2000 chapter 5 appendices). This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp.

  • Page 39: Prodigy Ii Combined Single Board Controller (Csbc) (Systems Df+12000 And Greater)

    This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp. System Overview 2-45 PRODIGY Service Manual (Rev C - 2000)

  • Page 40: Csbc Functions

    At startup the CPU executes the boots code which programs the FLEX PLD and then maps in either NT or Prodigy runtime firmware as appropriate based on the most significant bit of the CCA REV register. To switch from boot code to run code the firmware jumps to SRAM and executes a code snippet which pages the boot code out of 0xFF and the desired firmware into 0xFF.
  • Page 41 This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp. System Overview 2-47 PRODIGY Service Manual (Rev C - 2000)
  • Page 42 This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp. 2-48 System Overview PRODIGY Service Manual (Rev C - 2000)
  • Page 43 This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp. System Overview 2-49 PRODIGY Service Manual (Rev C - 2000)

  • Page 44: Trans / Long Motor Control And Status

    This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp. 2-50 System Overview PRODIGY Service Manual (Rev C - 2000)

  • Page 45: Ags Roll

    This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp. System Overview 2-51 PRODIGY Service Manual (Rev C - 2000)

  • Page 46: Scanner Reset

    This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp. 2-52 System Overview PRODIGY Service Manual (Rev C - 2000)

  • Page 47: Ge-Lunar Model 7861 X-Ray Generator Errors

    This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp. System Overview 2-53 PRODIGY Service Manual (Rev C - 2000)

  • Page 48: Dc Fail

    This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp. 2-54 System Overview PRODIGY Service Manual (Rev C - 2000)

  • Page 49: Kv/Ma Dac

    This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp. System Overview 2-55 PRODIGY Service Manual (Rev C - 2000)

  • Page 50: Interrupts

    This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp. 2-56 System Overview PRODIGY Service Manual (Rev C - 2000)

  • Page 51: Suicide Reset

    This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp. System Overview 2-57 PRODIGY Service Manual (Rev C - 2000)

  • Page 52: Misc In

    - essentially recovering the voltage lost in dropping the DC supply from the 26V used on IQ/Prodigy to the 24V which is readily available in commercial switchers. Diodes are placed in...

  • Page 53: Omi Input

    DPX-IQ. 74LS14's are added for hysteresis which provides a clean direct interface to the PLD. As on Prodigy, logic in the FLEX PLD is used to qualify the CH A and CH B inputs into a single 'valid motion' output.

  • Page 54: Shutter / Collimator Drive

    The shutter and collimator solenoid drive circuits are the same as that used on Prodigy I. The FLEX drives an isolation opto which in turn switches a pair of FET's to control solenoid current. The first FET is used for an initial 'hard hit' on open commands.

  • Page 55: Adc

    This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp. System Overview 2-61 PRODIGY Service Manual (Rev C - 2000)

  • Page 56: Communications Ports

    RS-232 is supported by populating the XCVR U26. RS-422 is supported by U21 and U37, the RS-422 XCVR's. A simple charge pump circuit is used to generate +5V_ISO on the host side of the barrier. Prodigy II will populate the RS-422 section and run at 115.2KB.
  • Page 57 This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp. System Overview 2-63 PRODIGY Service Manual (Rev C - 2000)

  • Page 58: Power Distribution (Prodigy Ii Systems Df+1200 And Greater)

    J14. J13 is provided as a power out connector to run power to the DMB for Prodigy II. 0R0 bypass resistor are provided to allow flexibility in grounding and filtering schemes. The PWB is divided into 4 ground plane regions - DGND for +5V digital returns, AGND for +/-12V analog returns, SCNGND for +24V returns, and ISO_GND for the host I/O island.

  • Page 59: Tube Head And X-Ray Insert

    The X-ray generator only provides mA monitor and mA limiting. PRODIGY I systems (DF+11999 and lower) have MAX CCA, PRODIGY II systems (DF+12000 and greater have mA control internal to the x-ray generator.

  • Page 60: X-Ray Generator (High Voltage Power Supply(Ies))

    X-ray tube. The x-rya generator provides a continuous output of 38 kV each and up to 5 mA (PRODIGY I) or 3.5 mA (PRODIGY II) to the X-ray tube. The x-ray insert anode is composed of a tungsten alloy. The specifications of the X-ray generation subsystem is outlined in section 2.16.7.

  • Page 61: Max Board (Prodigy I Systems Df+11999 And Lower Only)

    MAX Board (PRODIGY I systems DF+11999 and lower only) 2.9.1 MAX Board Function • The Tube Head and MAX Board work with the dedicated +28VDC power supply to supply tube head current. • The current is set by the SBC (see section 2.4).

  • Page 62: Xorb Board (Prodigy I Systems Df+11999 And Lower Only)

    2.10 XORB Board (PRODIGY I Systems DF+11999 and lower only) The XORB printed circuit board provides protection to various circuits (low voltage) from transients within the HVPS and tube head (see 2.1.1 for location). • There may be occasional static discharges within the Tube Head. The transients caused by these static discharges (arcs) are shunted to ground through the array of transorbs present on the XORB board.

  • Page 63: Detector Sub System

    This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp. System Overview 2-69 PRODIGY Service Manual (Rev C - 2000)

  • Page 64: Detector Daughter Board Overview

    This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp. 2-70 System Overview PRODIGY Service Manual (Rev C - 2000)

  • Page 65: Detector Daughter Board Operation

    This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp. System Overview 2-71 PRODIGY Service Manual (Rev C - 2000)

  • Page 66: Detector Mother Board Overview

    2.11.5 Detector Mother Board Overview • Contains 4 slots for the DDB’s (see figure 2-9) • Contains a slot for the Test Point Board (part of the PRODIGY tool kit see figure 2-9) • The Detector Mother Board provides +5 V, ±12 V plus digital and analog grounds to the Detector Daughter Boards.
  • Page 67 This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp. System Overview 2-73 PRODIGY Service Manual (Rev C - 2000)

  • Page 68: Foink (Prodigy I Systems Df+11999 And Lower Only)

    2.12 FOINK (PRODIGY I Systems DF+11999 and lower only) 2.12.1 FOINK Functions • The FOINK Board optically isolates control circuitry (SBC) from the rest of the scanners electronics (see pan layout Appendix 2B). • Shutter solenoid • Scanner Motor Controllers •...

  • Page 69: Display Panel

    2.13 Display Panel • The Display Panel of the PRODIGY, located on the front face of the upper arm, is the main operator interface outside the host computer. Figure 2-18. PRODIGY display panel • Four indicators display system status. • A green Light Emitting Diode (LED) indicates a power-on condition; it lights when the +26VDC power supply comes on.
  • Page 70 The Rocker switches are enabled by the SBC via the FOINK. Note: The rocker switches are also referred to as the joystick in the PRODIGY Service Manual and the PRODIGY Service Software. • The Emergency stop button (red), is to be used only in emergency situations;...

  • Page 71: Audible X-Ray Off Signal

    This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp. System Overview 2-77 PRODIGY Service Manual (Rev C - 2000)

  • Page 72: X-Ray Collimator Subsystem

    12VDC after the shutter is opened. • This solenoid is controlled by signals generated on the SBC, and optically isolated through the FOINK board on PRODIGY I systems. • An optical interrupter (OMI) detects the shutter open condition and reports shutter position information back to the (c)SBC.

  • Page 73: Prodigy Specifications

    This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp. System Overview 2-79 PRODIGY Service Manual (Rev C - 2000)

  • Page 74: Programs

    197.5 cm x 60 cm measurement field 2.16.4 Programs Note: Depending on the number of options purchased, not all of the options listed below may be included with the PRODIGY system software: • AP spine measurement and analysis • Femur measurement and analysis •...

  • Page 75: Storage And Transport Environment

    This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp. System Overview 2-81 PRODIGY Service Manual (Rev C - 2000)
  • Page 76 This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp. 2-82 System Overview PRODIGY Service Manual (Rev C - 2000)

  • Page 77: X-Ray Generator (System No. Df+11999 And Lower)

    This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp. System Overview 2-83 PRODIGY Service Manual (Rev C - 2000)
  • Page 78 This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp. 2-84 System Overview PRODIGY Service Manual (Rev C - 2000)

  • Page 79: Ge-Lunar 8022 X-Ray Tube

    This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp. System Overview 2-85 PRODIGY Service Manual (Rev C - 2000)

  • Page 80: Ge-Lunar 8743 X-Ray Tube Head Assembly

    This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp. 2-86 System Overview PRODIGY Service Manual (Rev C - 2000)

  • Page 81: Lunar 6838 X-Ray Tube Head Assembly

    This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp. System Overview 2-87 PRODIGY Service Manual (Rev C - 2000)

  • Page 82: Laser Specifications

    This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp. 2-88 System Overview PRODIGY Service Manual (Rev C - 2000)

  • Page 83: Compatible Components

    2.16.14 FDA Certified Components (USA Only) Tables 2-9 and 2-10 list components certified to the FDA for use with PRODIGY scanners and is updated periodically. Contact GE-LUNAR for a current listing of compatible components. Table 2-10. FDA certified components (system no. DF+12000 and higher).
  • Page 84 This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp. 2-90 System Overview PRODIGY Service Manual (Rev C - 2000)

  • Page 85: Secondary Calibration / Daily Qa

    This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp. System Overview 2-91 PRODIGY Service Manual (Rev C - 2000)

  • Page 86: Peak Test

    This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp. 2-92 System Overview PRODIGY Service Manual (Rev C - 2000)
  • Page 87 This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp. System Overview 2-93 PRODIGY Service Manual (Rev C - 2000)
  • Page 88 This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp. 2-94 System Overview PRODIGY Service Manual (Rev C - 2000)
  • Page 89 LUNAR (2.10) Figure 2-23. PRODIGY Daily QA printout with expected values This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp.
  • Page 90 This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp. 2-96 System Overview PRODIGY Service Manual (Rev C - 2000)
  • Page 91 3.3.4 Hacksaw ........1-108 PRODIGY Service Manual (Rev C - 2000)
  • Page 92 Figure 3-4. enCORE Troubleshooting help screen capture..1-111 Figure 3-5. Sample PRODIGY Error Log ..... . . 1-112 This document contains confidential or proprietary information of GE-Lunar Corp.

  • Page 93: Diagnostic Software

    • The Diagnostic Software is available through the User Options Tab 3.0.1 To Access the Service Software: • Start the PRODIGYSoftware by double clicking the PRODIGY Icon on the desk top • Double click the Tools option on the menu bar •...

  • Page 94: The Tools Menu

    3.1.3 Signal Monitor View count rates for low and high-energy channels for the detector. 3.1.4 Primary Calibration Used to calibrate the PRODIGY scanner See DXAP@002 PRODIGY Primary Calibration Procedure Chapter 5 Appendix C. 3.1.5 Secondary Verification Used in the manufacturing process 3.1.6 Pileup...

  • Page 95: Encore Composer

    This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp. PRODIGY Service Manual (Rev C - 2000) Service Software3-105...

  • Page 96: Scanner Detector

    This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp. 3-106Service Software PRODIGY Service Manual (Rev C - 2000)

  • Page 97: Scanner X-Ray

    •Bias Control - adjusts the bias of the detector. PRODIGY Systems run with detector bias on demand (when x-rays are present) of 450VDC. •DCA window settings - view DCA window settings - these settings should not be edited. •Detector status - allows the service engineer to view the detector status real time - information displayed includes Peak setting Bias setting, and DCA window settings.

  • Page 98: Lin/Rep

    Note: When using Limit Switch Adjustment, DO NOT alter the default settings. 3.2.10 Scanner Disconnect Disconnect the scanner from the PRODIGY software (reset the (c)SBC). Diagnostic Scan Modes - Performed under F2 Measure - only visible when the scanner is in service mode.
  • Page 99 This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp. PRODIGY Service Manual (Rev C - 2000) Service Software3-109...
  • Page 100 This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp. 3-110Service Software PRODIGY Service Manual (Rev C - 2000)
  • Page 101 B.Spring no longer anchored III.Solenoid powered when it should not be A.FOINK (PRODIGY I) problem – Test by disconnecting J1. If the shutter closes, swap the SBC. If the shutter stays open, swap the FOINK. B.(c)SBC problem – Test as above.
  • Page 102 This document contains confidential or proprietary information of GE-Lunar Corp. Neither the document nor the information therein is to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp. 3-112Service Software PRODIGY Service Manual (Rev C - 2000)
  • Page 103 4 1 1 1 2 Troubleshooting This chapter contains troubleshooting techniques for diagnostic Chapter 1:Troubleshooting failures, failing quality assurance tests, mechanical failures and imaging problems. 4.0 Diagnostic Failure Codes ....... . 4-119 4.1 Transverse Motion failure .
  • Page 104 4.11.4 Broken Signal Cable ......4-137 4.11.5 Loss of tube head current ..... . . 4-137 4.11.6 X-Ray Relay Failure.

  • Page 105: Diagnostic Failure Codes

    Diagnostic Failure Codes The following conditions halt the operations of the scanner, and generate a diagnostic failure message which is displayed on the monitor screen: All of these interrupts are detected by the cSBC • Transverse Mechanics Failure (4.1) • Longitudinal Mechanics Failure (4.2) •...
  • Page 106 If the Detector / Tube Head motion is irregular, or scraping noises are heard, the Transverse Mechanics may be binding. This symptom will typically be detected as a failure by the daily QA Mechanics Test. • Symptom: If the Detector Array / Tube Head is not moving when scanning check: •...

  • Page 107: Loss Of Omi Signal

    The wheels that support the Tube Head and Detector Carriages must be adjusted so that they come into perfect contact with the Transverse Rails. These wheel are best inspected with the table top, front panel and arm covers off so one can sight down the extrusions. However, it is possible to test the wheels by preventing any wheel from turning and seeing if the carriage will still move.

  • Page 108: Longitudinal Motion Failure

    Solution 1: The pulses that normally enter the cSBC board at J14 (the black wire at the center of the connector) may have stopped. These pulses are necessary to keep the cSBC from resetting. These pulses can be seen on a cSBC board LED. Use the DPX-NT service software (Tools/Diagnostics/Scanner Motion / Motion Commands Tab) to set the joystick speed to 50 steps, enable the joystick and watch the LED.

  • Page 109: Longitudinal Binding

    • Cause: When scanning, a defect in the longitudinal mechanics (binding) or a mis-positioned patient may cause one of the longitudinal limit switches to close when the scanner is acquiring data. Closure of a limit switch prevents further operation of the motor. The shutter will close, the shutter open lamp will go out and the end of exposure alarm will sound.
  • Page 110 Problems at the head end of the scanner can be caused by a limit switch being out of position (thus the arm runs into the frame before the Limit Switch) or because the High Voltage Cables are tied down incorrectly where they snake around from the Rear Longitudinal Carriage to the panel under the Tube Head (High Voltage Cable Trough).

  • Page 111: Loss Of Omi Signal

    The longitudinal Centent Motor Controller may be the cause of a failure. The current set voltage should be roughly 9-11 volts at terminal 11 on a properly operating controller. If this voltage is not correct, replace the Centent Controller. The longitudinal and transverse Centents are identical, and can be exchanged.

  • Page 112: Failure Of The 28V Power Supply

    • Verify that the slotted disk at the foot end of the scan table is in the middle of the slot between the photo diode and photo transistor. • The slotted disk must be completely flat and remain in the center of the sensor slot during its entire rotation.

  • Page 113: Emergency Stop Button

    Emergency Stop Button The Emergency Stop button is a normally closed circuit, if it opens the Emergency Stop interrupt will be sent from the FOINK to the SBC. • Verify that the emergency stop button is out. If it has been pressed in, press it again to release it.

  • Page 114: Reasons For Invalid Diagnostic Failures

    Multiple error codes are possible. These will be displayed one after the other, but the first one displayed is probably the problem. The Error Log will always show the failures in the correct order, the others are generated as a result of the first failure.

  • Page 115: Reference Counts And Ratio

    An increase in the Spillover percentage over time is an indication that the detector is losing resolution, even if the Spillover test does not fail. A large change in the Spillover can be explained in some cases by standard positioning (or a small change in the home position of the scanner). If the beam is not fully eclipsed by the brass piece during the Spillover test, the Spillover value increases dramatically.

  • Page 116: Tissue Value

    • Incorrect Limit Switch positioning • Defective Limit Switch • A mechanical constraint • A defective Motor • A defective Centent Motor Controller The values recorded for these tests should remain fairly constant over time. Variations between QA's of under 25 steps should not be a cause for concern as 1 transverse step = 0.05 mm and 1 longitudinal step = 0.1 mm, so the actual variation is only a few millimeters.

  • Page 117: Symptoms Of High And Low Kv

    4.8.9 Symptoms of High and Low KV It has been noted in a small number of cases that defective high voltage power supplies, or an arcing tube head may produce a voltage other than 76 kV. The DPX-NT monitors kV once per scan sweep. Note: :It would be prudent in both of these cases to take a positive and negative power supply, AND a tube head.
  • Page 118 • When the x-rays are off between scans, verify that the shutter aperture lines up with the aperture to the Tube Head beneath. Take some alignment pictures and verify that the image is a bright, rectangular image and the entire alignment box is visible. If the alignment box is not visible, the shutter Tube Head and detector apertures are not aligned.
  • Page 119 c.X-ray On LED Test the X-Ray On LED by inserting it into the Power On receptacle. Replace if defective. d.High Voltage System • Current ramping has failed. If TP1 and TP5 are zero and do not change, check the polarity of the High Voltage Cables. The X-ray Insert is essentially a diode, and will not conduct current from the anode to the cathode.

  • Page 120: Arcing

    A rough edge around the shutter aperture may be wearing away on the tube head below. The lead filings fall off the shutter aperture and gather on the filter below, causing a reduction in x-rays over time. Any wear should be easily visible on the underside of the shutter paddle.

  • Page 121: Limit Switch Tripped During Scan

    • Transverse Motion Failure message. To specifically locate the source of an arc, it is necessary to find out which high voltage power supply provides the excessive current. This may be done by recording the power supply current monitors at TP1 and TP5 of the XORB board with a storage oscilloscope.

  • Page 122: Imaging Problems

    If the transverse mechanics of the scanner become imprecise, it may cause a Limit Switch to be tripped during a scan. This will usually only happen during a total body scan or during an Alignment Test test since both of these scans involve full-width scanning.

  • Page 123: Ap-Spine Image Problems: Probable Causes

    Most image discontinuity problems occur in femur images performed at 3 mA on thin or osteoporotic subjects. These lines usually occur in the trochanter area where the x-ray beam is least attenuated by tissue. These lines are caused by Automatic Gain Stabilizer (AGS) trying to adjust the input signal which is at an excessively high count rate.
  • Page 124 See section 4.16. 4.11.7 Unstable AC Line If the customer's AC line conditions are unstable, voltages 11% below the scaners AC input configuration will begin to drop the high voltage on the x-ray tube. The counts will drop significantly with only a change of a few kV. However, this normally causes black or dark grey lines in the scan image.
  • Page 125 The Image is a graphic illustration of the counts recorded during the Alignment Test. A good image has a black field with evenly distributed grey dots and perhaps a few randomly distributed dots of various colors (green or blue usually). Figure 4-6.

  • Page 126: Indicator Failures

    • Lines or streaks going transversely across the Alignment Test image indicate a problem with the AGS, on the Detector Daughter Board in the detector array. Again, replace parts until a passing Alignment Test is obtained. • Troubleshooting tip: if the Alignment test can be run with the Alignment Aperture on, this will make the test more sensitive as the beam will be further collimated to the exact size of the detector.

  • Page 127: Shutter Not Operating

    The amber Shutter Open LED is controlled by the Limit Switch on the Shutter/ Collimator Assembly. If the Limit Switch is defective or improperly adjusted, the Shutter Open LED may be switched on and off. This will usually be accompanied by the sound of the End of Exposure Alarm if an exposure is underway.

  • Page 128: Communications Failures

    • The FOINK is faulty. • The SBC is faulty. The X-RAY ON light is off. This could indicate the following: • X-ray production has halted. This turns off the X-ray On light and sounds the Alarm. 4.14 Communications Failures Should the scanner, host computer and or Detector Mother Board lose communications with each other, there are a number of things to check: A good troubleshooting tool is the COMM test in Tools/Service Options -...

  • Page 129: What To Look For In The Qa History

    DPX-NT software includes the capability to view, print or graph data contained in the Quality Assurance database. View and print display selected results of many of the tests run during the Daily Quality Assurance in tabular form. The graph feature will graph the results of only one of the Quality Assurance parameters.

  • Page 130: Foink Board Troubleshooting

    When the board is powered up, and x-rays are being generated, the following measurements may be performed: With a VOM set on 200 VDC, you should measure about 18 to 21 VDC on TP's 4, 13 and 5 referenced to TP3 (GND). Note: If an oscilloscope is available, you should see about 18 to 21 VDC on TP13.

  • Page 131: Omi Board Troubleshooting

    • C- (D8) X-ray on (28 VDC supply), when this LED is lit when the +28 VDC power supply is on • D - (D7) Mechanics engage, when LED is out the motor(s) are enabled • E - (D6) - Errors Clear, must be lit - out when FOINK detects an error (failsafe) •...
  • Page 132 The SBC consists of a single circuit board that uses the 8032 microprocessor with a RS-422 interface to the Host PC and a RS-422 interface to the Detector Motherboard (DMB) The SBC is located on the electronics pan in the front center. Figure 4-8.

  • Page 133: Xorb Troubleshooting

    • Amber LED (B in figure 4-5) is on then you have -12VDC to the board. • Red LED (E in figure 4-5) is the DTR reset line, when this LED is lit, the Detector, FOINK, or SBC are detecting an error. When the DTR Reset Line is lit: •...

  • Page 134: Detector Motherboard Troubleshooting

    • Check and tighten, if necessary, all mounting screws for the XORB board. Electrical Tests • Measure impedance between XORB ground plane and the electrical pan. It should be less than an ohm. • There should be no low impedance (less than 10 ohms) reading between any signal or signal ground and chassis ground on the XORB when the as-associated signal connectors are disconnected.

  • Page 135: Detector Daughter Board Troubleshooting

    Diagnostic LED’s in figure 4-6 • A - (Green) Power +12 VDC Present • B - (Green) Power - 12 VDC Present • If the 12 VDC power LED’s are not illuminated power down the scanner, wait 30 seconds and power back up (see section Chapter 2.1.2) •...
  • Page 136 Figure 4-11. Test Point Board The Test point board gives the service engineer access to all of the signals for the individual Detector Daughter Boards The Test Point Board is broken into 2 areas: Analog Signals DMB Controlled Programming Information (same data to all DDB PLD’s FIRMWARE from DMB Flash RAM) •...
  • Page 137 Individual Detector Signals (Stored in DMB Flash RAM) • GAIN - combination of Peak and AGS signal gain - setting for Shaping Amplifier - visible only with Oscilloscope • AGS - AGS amplify or Attenuate signal - visible only with Oscilloscope •...
  • Page 138 4-152Troubleshooting DPX-NT Service Manual (Rev A- 1999)
  • Page 139 5.6 Tests to Perform after Service ......5-165 5.7 Returning Parts To LUNAR (For International Distributors) ..5-166 PRODIGY Service Manual (Rev B - 1998) Service Procedures5153...
  • Page 140 This page left blank intentionally. 5-154Service Procedures PRODIGY Service Manual (Rev B - 1998)

  • Page 141: Reloading Lunar Software

    PRESENTLY BEING USED! RELOADING OLDER SOFTWARE CAN DESTROY IMPORTANT DATA. • The about tab under the help menu of the Lunar Prodigy Software shows which version is presently on the system. • Insert the Lunar System CDROM into the CDROM: drive •...

  • Page 142: Tube Head Replacement

    Figure 5-12. DPX Series Tube Head components Verify that all necessary parts have been transferred to the new Tube Head before shipping the defective. LUNAR has received defectives with the lead ring, for example, still in them. 5-156Service Procedures PRODIGY Service Manual (Rev B - 1998)

  • Page 143: Shelf Life

    5. On your new lower cable bundle, use a diagonal cutters to cut the wire ties holding the cable together, also unfold and read the LUNAR SERVICE NOTES attached to the new cable bundle. PRODIGY Service Manual (Rev B - 1998) Service Procedures 5-157...
  • Page 144 Where the wires enter the connector each hole is numerically labeled. Put the green wire into hole # 11, and the black wire into hole # 9, and the red wire into hole # 1. 5-158Service Procedures PRODIGY Service Manual (Rev B - 1998)
  • Page 145 21.Carefully feed (one connector at a time) the new cable bundle wires through the cable entrance hole into the pan area. Connect the wires to their proper locations. PRODIGY Service Manual (Rev B - 1998) Service Procedures 5-159...

  • Page 146: Upper Cable Bundle Replacement

    24.Reconnect the A/C power cord, put the table top, pad, and end panels back on the scanner. 25.Turn on the scan table, computer, monitor and printer. Perform required tests per section 6.9 of the Prodigy Service Manual. Upper Cable Bundle Replacement Tools Necessary: •...
  • Page 147 Make sure that none of the cables hit any of the moving parts in the narrow area where the cables come from the back of the column out to the bulkhead. PRODIGY Service Manual (Rev B - 1998) Service Procedures 5-161...

  • Page 148: Tube Head Control Cable Replacement

    Replace the table top, table pad and the head and foot end panels back on to the scanner. 24.Turn on the power to the scan table. Run Required tests as prescribed in section 6.9 of the Prodigy service manual. Tube Head Control Cable Replacement Required Tools: 5.5.1 Procedure...
  • Page 149 Pull the sleeving tight along the bundle and tape near the tube head. Wire tie the cables to the tube head high voltage cable bracket. Figure 5-13. Profile Cable Routing Diagram PRODIGY Service Manual (Rev B - 1998) Service Procedures 5-163...
  • Page 150 Move the arm up and down the table to verify that the cable track moves properly. 14.Reconnect the A/C power cord, and replace the table top and end panels. 15.Perform required tests as prescribed in section 6.9 of the Prodigy Service Manual. 5-164Service Procedures...

  • Page 151: Tests To Perform After Service

    Lower Cable Bundle MAX, FOINK, or XORB Board Motor, Belt, Pulley or Gears High Voltage Power Supply Tube Head Tube Head Control Cable Upper Cable Bundle System Move or Installation PRODIGY Service Manual (Rev B - 1998) Service Procedures 5-165...

  • Page 152: Returning Parts To Lunar (For International Distributors)

    Note: If it is the intention of a distributor to keep a part for their spare parts stock, they should notify the LUNAR Customer Service Department. This way, LUNAR may immediately invoice for such parts and close service reports in a more timely manner. 5-166Service Procedures PRODIGY Service Manual (Rev B - 1998)
  • Page 153 6.2 Change Orders ........6-170 PRODIGY Service Manual (Rev B - 1998)
  • Page 154 This page left blank intentionally. 6-168Maintenance PRODIGY Service Manual (Rev B - 1998)
  • Page 155 Preventative Maintenance • There are a number of items to be checked, cleaned and tested during a PM visit to a site. See the Prodigy PM / Service Call Checklist in Appendix 6-A. 6.0.1QA History An important aspect of the PM is checking the QA History (see section ). This is important because when a QA is run during the PM, it should be consistent with the past QA's.
  • Page 156 Localize the sound and investigate the appropriate areas. Change Orders As engineering changes are made to the Prodigy Scanner, they will be noted herein future revisions of this manual. 6-170Maintenance PRODIGY Service Manual (Rev B - 1998)

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