GE Medical Systems PRODIGY User manual

PRODIGY
Service Manual
Part Number: LUN7396
Revision: C

ii Prodigy Service Manual
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Prodigy Service Manual iii
This document contains confidential or proprietary information of GE-Lunar Corp. neither the
document nor the information is to be reproduced, distributed, used or disclosed, either in whole or
in part, except as specifically authorized by GE-Lunar Corp.
GE-LUNAR Corporation makes no warranty of any kind with regard to this material, and shall not be
held liable for errors contained herein or for incidental or consequential damages in connection
with the furnishings or use of this manual.
Read through this manual thoroughly before attempting to service any components. Unauthorized
service may void system warranties or service contracts. Consult the GE-LUNAR Customer
Support Department prior to attempting any servicing:
608-828--2663
608-826-7107 (Fax)
gis 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.

iv Prodigy Service Manual
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Prodigy Service Manual v
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.
Chapter 3 should be understood completely as it explains the Diagnostics Software (built in –
requires a password for access).
The Chapter 4 and Chapter 5 contain common procedures and troubleshooting information and
can be read as needed, but are good sources of information.
When a problem arises, Chapter 4 should be referenced. Check the table of contents for Chapter 4
to see if the problem being experienced is described. If so, refer to the appropriate page. If not, try
to generalize the problem (e.g. the Detector is repeatedly running into the front of the scanner and
reversing and then running back into the front of the scanner. This is a mechanical problem in
general, specifically with Transverse Mechanics, check that subsection of Chapter 4 for the
subsystem experiencing the fault.
This manual commonly references other Sections and pages of the manual as needed, so often
procedures in the Chapter 5 Appendix are referred to as ways to solve problems described in
Chapter 4.
Information Requested By GE-LUNAR:
When requesting assistance from GE-LUNAR, please provide the following information:
System Number (DF+xxxxx)
Institution or Doctor's name
Location
Complete list of symptoms
Names and part numbers of parts needed for service

vi Prodigy Service Manual
In addition to the information above, an Error Log printout and QA’s and QA history or other failing
diagnostic test printout (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 (Rev C - 2000) Safety113
Chapter 1:Safety This chapter highlights safety devices and features a Service
Engineer should know before servicing a PRODIGY system.
Chapter Contents:
1.0 General Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15
1.1 Symbols and labels found on the PRODIGY . . . . . . . . . . . . . . . . . . 1-15
1.1.1 External Symbols. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15
1.1.2 Internal Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16
1.1.3 Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16
1.2 Emergency Stop Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19
1.3 Laser Exposure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20
1.4 Shutter Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21
1.5 Cautions, Warnings, and Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21
1.5.1 Caution Statements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21
1.5.2 Warning Statements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22
1.5.3 Note Statements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22
1.6 Safety Concerns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22
1.6.1 Pinch points. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22
1.6.2 Laser safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23
1.6.3 Radiation safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24
1.6.4 Scatter Radiation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24
1.7 Controlling Computer and Accessories . . . . . . . . . . . . . . . . . . . . . . 1-26
1.7.1 Electrical Safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-26
1.7.3 Peripheral Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-26
1.7.4 Standard room configuration (system no. DF+12000 and greater)1-
26
1.7.5 Small room configuration (system no. DF+12000 and higher) 1-27
1.7.6 Scanner power output configuration (system no. DF+11999 and
lower) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-27
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. Laser Warning Label (U.S. systems only) . . . . . . . . . . . . . . 1-20
Figure 1-4. Laser Warning Label (International systems only) . . . . . . . . 1-20
Figure 1-5. Source (x-rays) off - Shutter closed (green) . . . . . . . . . . . . . 1-21
11112Safety

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.
1-14 Safety PRODIGY Service Manual (Rev C - 2000)
Figure 1-6. Source (x-rays) on - Shutter open (yellow). . . . . . . . . . . . . . 1-21
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. 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) Safety1-15
1.0 General Safety
• DO NOT attempt to service the PRODIGY without first reading this
manual.
• DO NOT attempt any repairs without prior instructions from authorized
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. Collateral Standard: Electromagnetic
compatibility - Requirements and tests.Emergency Stop Button
1.1 Symbols and labels found on the PRODIGY
1.1.1 External Symbols
• The following symbols are found on the PRODIGY, in the Operators
manual, and in the Service Manual.
Attention: contains important safety information such as the
location of a pinch point.
Emergency Stop Button: shows the location of the
emergency stop button.
Power On: shows the location of the Power On indicator and the
switch position for Power On.
Power Off: shows the switch position for Power Off.
Laser On: shows the location of the Laser On indicator. It is found
only on systems delivered internationally.

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.
1-16 Safety PRODIGY Service Manual (Rev C - 2000)
Shutter Open: shows the location of the Shutter Open indicator.
X-ray On: shows the location of the X-Ray On indicator.
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.
Functional Earth: shows the location of a Functional Earth
Terminal.
1.1.3 Labels
• The following labels are found on the PRODIGY Scanner.
Laser Caution Label: Shows that the scanner uses
a Class II laser. This label is not found on systems
shipped to Canada.
Laser Caution Label: Canada only

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
Tube Head Assembly Label (system number
DF+12000 and greater): This label gives tube head
assembly and x-ray source characteristics
information. It is located on the tube head assembly
and the foot panel of the scanner.
Tube Head Assembly Label (system number
DF+11999 and lower): This label gives tube head
assembly and x-ray source characteristics
information. It is located on the tube head assembly
and the foot panel of the scanner.
A definition of each symbol on this label follows:
Inherent Filtration
Tube Insert
X-ray Source
Focal Point
System Label (system number DF+12000 and
greater): This label gives system input power
requirements and compliance information. It is
located on the foot panel of scanners. The CE
mark shows compliance with UL/CSA and the
Medical Device Directive 93/42/EEC.
System Label (system number DF+11999 and
lower): This label gives system input power
requirements and compliance information. It is
located on the foot panel of scanners. The CE
mark shows compliance with UL/CSA and the
Medical Device Directive 93/42/EEC.

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)
High Voltage Power Supply: This label gives
high voltage power supply (x-ray generator)
information. It is located on the positive and
negative power supplies, and foot panel of the
scanner.
X-ray Controller: This label shows x-ray
controller compliance. It is located on the foot
panel of the scanner.
Collimator Assembly: This label gives
collimator assembly information. It is located on
the collimator and foot panel of the scanner.
Warning Label and Radiation Symbol: The
Warning label shows that the system uses
ionizing radiation. It is found only on systems
delivered in the United States. Always obey
instructions for safe operation.
Radiation Label: This label shows that the system uses
ionizing radiation.
Grounding Reliability Label: This label states that
grounding reliability can only be maintained when using a
“Hospital Grade” or “Hospital Only” receptacle. It is only found
on systems delivered in the United States.

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
1.2 Emergency Stop Button
• The Emergency Stop Button is a round red button located on the scanner
display panel (see Figure 1-1). When pressed, power is removed from
the X-ray tube head, the laser, and the shutter is closed. Power is also
removed from the scan arm motors, allowing the operator/patient to push
the scan arm out of the way.
Figure 1-1. The PRODIGY Display Panel

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.
1-20 Safety PRODIGY Service Manual (Rev C - 2000)
1.3 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. Because
of this potential hazard, DO NOT stare directly into the beam while the
laser is in operation, and DO NOT allow the beam to shine directly into
the patients' eyes. No specific eye protection is required with a Class II
laser.
• A amber laser-on indicator, located on the front of the scan arm, is lit
when the laser is on. The program activates the laser during positioning
for an image acquisition. The program then turns off the laser when you
begin the scan. The emergency stop button will turn off the laser.
• There is a caution label (Figure 1.2) on the scan arm near the Display
Panel.
Figure 1-2. Laser Warning Label (U.S. systems only)
Figure 1-3. Laser Warning Label (Canadian Systems only)
Figure 1-4. Laser Warning Label (International systems only)
Note: DO NOT STARE INTO THE BEAM while the laser is
operating.

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) Safety1-21
1.4 Shutter Indicator
• This symbol is used to indicate an open-shutter condition in accordance
with the safety standards established by the International
Electrotechnical Commission (IEC).
Figure 1-5. Source (x-rays) off - Shutter closed (green)
Figure 1-6. Source (x-rays) on - Shutter open (yellow)
• This symbol appears near the yellow X-ray shutter-open indicator light.
The X-ray shutter-open indicator light is located on the Display Panel on
the scan arm near the front.
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.
1.5 Cautions, Warnings, and Notes
• This manual contains warning and caution statements wherever
appropriate for your safety. The warnings and cautions used throughout
the manual are based on the safety standards established by the
International Electrotechnical Commission (IEC). In addition, the manual
uses notes to attract the reader's attention to important information.
1.5.1 Caution Statements
A caution statement reflects a condition
that, if not avoided, could cause
equipment or property damage.

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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)
1.5.2 Warning Statements
A warning statement reflects a potentially
hazardous condition that, if not avoided, could
result in serious injury.
1.5.3 Note Statements
Note: This symbol turns the reader's attention to important
information which may otherwise be overlooked.
1.6 Safety Concerns
1.6.1 Pinch points
The Warning label below identifies the location of possible pinch points
Because the PRODIGY Densitometer
contains moving parts, there are places
on the scanner where there is a danger
of pinching. Operators should be aware
of these pinch points to avoid injury to
the patient or themselves. When the scanner arm is in
motion, make sure possible pinch point locations are
clear at all times. Labels applied at the LUNAR factory
indicate the location of the pinch points. The pinch
points and their labels are shown in the figure 1-7.

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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) Safety1-23
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.
1.6.2 Laser safety
DO NOT STARE INTO THE LASER BEAM
during patient positioning and Quality
Assurance procedures.
The label that follows is located on the scanner arm and shows the location of
the laser aperture.

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to be reproduced, distributed, used or disclosed, either in whole or in part, except as specifically authorized by GE-Lunar Corp.
1-24 Safety PRODIGY Service Manual (Rev C - 2000)
1.6.3 Radiation safety
X-ray exposure: The system makes radiation when electric voltage is
supplied to, and current flows through, the x-ray tube. During a measurement,
the shutter opens to let a beam of radiation pass through the scanner table
and patient. The radiation field at the table top is 19.2 mm x 3.3 mm. Lead
oxide shielding surrounds the x-ray tube insert inside the tube housing
assembly and reduces radiation levels around the scanner table.
Skin entrance dose: Table 1 of the PRODIGY Operators Safety and
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.
• These dosages are relatively insignificant as the allowed yearly dosage
for a person working with radiation emitting equipment is 5000 mRem.
Radiation however should be avoided when possible.

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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
Figure 1-8. PRODIGY Iso-Dose Diagram

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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)
1.7 Controlling Computer and Accessories
1.7.1 Electrical Safety
IEC and UL/CSA certification
IEC: To maintain electrical safety, all computer equipment and accessories
connected to the scanner must meet all IEC requirements for safety, such as
IEC 950, "Safety of information technology equipment, including electrical
business equipment," and IEC 801-5, "EMC Surge Immunity Requirements."
The computer and all accessories must have the CE label.
UL/CSA: To maintain electrical safety, all computer equipment and
accessories connected to the scanner must have safety agency approvals for
UL/CSA.
1.7.2 Electromagnetic interference
Although the scanner meets safety standards regarding electromagnetic
interference (EN60601-1-2), you may still experience a loss of performance
under extreme electromagnetic conditions. Maximize the distance between
the scanner and other equipment, and use a dedicated power line, to avoid
interference to and from the scanner.
1.7.3 Peripheral Configurations
The correct connection of the computer and all
peripherals is necessary to maintain electrical
safety. The signal cable of the scanner is
intended only for connection to an approved
computer. Call LUNAR Support or your LUNAR
distributor before adding peripherals.
Note: The scanner's output power strip can be used to supply the
Host PC with isolated power. If it is to be used the following
conditions must be met. If the conditions cannot be met, the
scanner's output power strip cannot be used.
Note: See also Peripheral Block Diagrams - Section 2.2.3
1.7.4 Standard room configuration (system no. DF+12000 and
greater)
The computer, peripherals, and all other equipment must be located more
than 1.83 m from the scanner. Use an outlet strip to power the computer and
all peripherals. The outlet strip must be mounted off the floor so that it does
not touch other equipment. If your outlet strip was provided by LUNAR, it has
a maximum output of 15A, 120VAC. Only system-related equipment should
be powered by the outlet strip.