Manual Service DMR Sonographe Ge

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TechnicalPublications

2252561-100Revision 1

Senographe DMR +asmAdvanced Service Manual

do not duplicate

Advanced Service DocumentationProperty of GEFor GE Service Personnel OnlyNo Rights Licensed – Do not Use or CopyDisclosure to Third Parties Prohibited

Copyright 1999, 2000 by General Electric Co.


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ATTENTIONLES APPAREILS À RAYONS X SONT DANGEREUX À LA FOIS POUR LE PATIENT ET POUR LE MANIPULATEUR

SI LES MESURES DE PROTECTION NE SONT PAS STRICTEMENT APPLIQUEES

Bien que cet appareil soit construit selon les normes de sécurité les plus sévères, la source de rayonnement X représente un dangerlorsque le manipulateur est non qualifié ou non averti. Une exposition excessive au rayonnement X entraîne des dommages à l’organisme.Par conséquent, toutes les précautions doivent être prises pour éviter que les personnes non autorisées ou non qualifiées utilisent cetappareil créant ainsi un danger pour les autres et pour elles–mêmes.Avant chaque manipulation, les personnes qualifiées et autorisées à se servir de cet appareil doivent se renseigner sur les mesures deprotection établies par la Commission Internationale de la Protection Radiologique, Annales 26 : Recommandations de la CommissionInternationale sur la Protection Radiologique et les normes nationales en vigueur.

WARNING

X–RAY EQUIPMENT IS DANGEROUS TO BOTH PATIENT AND OPERATORUNLESS MEASURES OF PROTECTION ARE STRICTLY OBSERVEDThough this equipment is built to the highest standards of electrical and mechanical safety, the useful x–ray beam becomes a source ofdanger in the hands of the unauthorized or unqualified operator. Excessive exposure to x–radiation causes damage to human tissue.Therefore, adequate precautions must be taken to prevent unauthorized or unqualified persons from operating this equipment or exposingthemselves or others to its radiation.Before operation, persons qualified and authorized to operate this equipment should be familiar with the Recommendations of the Interna-tional Commission on Radiological Protection, contained in Annals Number 26 of the ICRP, and with applicable national standards.

ATENCIONLOS APARATOS DE RAYOS X SON PELIGROSOS PARA EL PACIENTE Y EL MANIPULADOR

CUANDO LAS NORMAS DE PROTECCION NO ESTAN OBSERVADASAunque este aparato está construido según las normas de seguridad más estrictas, la radiación X constituye un peligro al ser manipuladopor personas no autorizadas o incompetentes. Una exposición excesiva a la radiación X puede causar daños al organismo.Por consiguiente, se deberán tomar todas las precauciones necesarias para evitar que las personas incompetentes o no autorizadasutilicen este aparato, lo que sería un peligro para los demás y para sí mismas.Antes de efectuar las manipulaciones, las personas habilitadas y competentes en el uso de este aparato, deberán informarse sobre lasnormas de protección fijadas por la Comisión Internacional de la Protección Radiológica, Anales No 26: Recomendaciónes de la Comi-sión Internacional sobre la Protección Radiológica y normas nacionales.

ACHTUNGRÖNTGENAPPARATE SIND EINE GEFAHR FÜR PATIENTEN SOWIE BEDIENUNGSPERSONAL,WENN DIE GELTENDEN SICHERHEITSVORKEHRUNGEN NICHT GENAU BEACHTET WERDEN

Dieser Apparat entspricht in seiner Bauweise strengsten elektrischen und mechanischen Sichereitsnormen, doch in den Händen unbe-fugter oder unqualifizierter Personen wird er zu einer Gefahrenquelle. Übermäßige Röntgenbestrahlung ist für den menschlichen Orga-nismus schädlich.Deswegen sind hinreichende Vorsichtsmaßnahmen erforderlich, um zu verhindern, daßunbefugte oder unqualifizierte Personen solcheGeräte bedienen oder sich selbst und andere Personen deren Bestrahlung aussetzen können.Vor Inbetriebnahme dieses Apparats sollte sich das qualifizierte und befugte Bedienungspersonal mit den geltenden Kriterien für den ge-fahrlosen Strahleneinsatz durch sorgfältiges Studium des Hefts Nr. 26 der Internationalen Kommission für Strahlenschutz (ICRP) vertrautmachen: Empfehlungen der Internationalen Kommission für Strahlenschutz und anderer nationaler Normenbehörden.


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GE Medical Systems Senographe DMR +REV 1 asm 2252561-100

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TABLE OF CONTENTS

CHAPTER TITLE PAGE

LIST OF EFFECTIVE PAGES vii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

CHAPTER 1 – INTRODUCTION 1–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SECTION 1 – MAINTENANCE TOOLS 1–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–1 Mammocom 1–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–2 Signal Lists/Glossaries 1–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–3 Module Disassembly/Reassembly 1–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–4 Error codes 1–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–5 Troubleshooting Guides 1–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–6 Block Diagrams 1–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 2 – DIAGNOSTIC PROCEDURE 1–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–1 Power–up problems 1–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–2 Problems generating error messages 1–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–2–1 Function of self–test 1–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–2–2 Screen facilities 1–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–3 CPU board and interface problems 1–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–3–1 CPU board diagnostic 1–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–3–2 Error codes generated by Generator CPU board 400PL3 andGenerator Interface board 400PL2 together 1–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–3–3 Error codes generated by Gantry CPU board 800PL3 andGantry Interface board 800PL2 together 1–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 3 – USE OF THE BLOCK DIAGRAMS 1–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 4 – SENOGRAPHE DRAWINGS 1–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

CHAPTER 2 – “MAMMOCOM” COMMUNICATION SOFTWARE 2–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SECTION 1 – PURPOSE OF THE SOFTWARE 2–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 2 – “MAMMOCOM” FLOPPY DISK CONTENTS 2–1. . . . . . . . . . . . . . . . . . . . . . . . .

2–1 Floppy Disk Contents 2–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 3 – INSTALLATION ON HARD DISK 2–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 4 – GENERAL USER INTERFACE 2–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4–1 Menu Screen Structure 2–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4–2 Line Editor 2–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 5 – TREE STRUCTURE OF AVAILABLE FUNCTIONS 2–6. . . . . . . . . . . . . . . . . . . . .

SECTION 6 – TERMINAL EMULATION 2–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6–1 Accessing the Function 2–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .


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TABLE OF CONTENTS (CONT.)

CHAPTER TITLE PAGE

6–2 User Interface 2–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6–3 Connection Hardware 2–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6–4 Communications Protocol 2–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6–5 Emulator Restrictions 2–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 7 – COMMUNICATIONS PARAMETERS 2–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7–1 Accessing the Menu 2–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7–2 Modifying the Parameters 2–11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7–2–1 Baud Rate Menu 2–11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7–2–2 Com_port Menu 2–11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7–2–3 Parity Menu 2–11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7–2–4 Length Menu 2–11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7–2–5 Stop Bit Menu 2–11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7–2–6 Save Function 2–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 8 – FILE TRANSMISSION 2–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8–1 Preparing the Transfer 2–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8–2 Type of Files Transferred 2–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8–2–1 Coded Files 2–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8–2–2 ASCII Files 2–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8–3 FILE NAME Option 2–15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8–4 DIRECTORY and SUFFIX Options 2–15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8–5 TRANSMIT Option 2–16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8–6 RECEIVE Option 2–16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8–7 Display Window in Transfer 2–16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 9 – SAVING THE EMULATOR SCREEN ON A FILE 2–18. . . . . . . . . . . . . . . . . . . . . . .

9–1 Accessing the Menu 2–18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9–2 FILE NAME Option 2–19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9–3 DIRECTORY and SUFFIX Options 2–19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9–4 “Save Screen” Function 2–20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9–4–1 Terminal Emulator Option not Selected Beforehand 2–20. . . . . . . . . . . . . . . . . . . . . . . . . . .

9–4–2 File Selected to Save Screen does not Exist 2–20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9–4–3 Selected File Exists 2–20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 10 – ACCESS TO DOS 2–21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 11 – CLEARING THE EMULATOR SCREEN 2–22. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 12 – SAVING PARAMETERS 2–23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .


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CHAPTER TITLE PAGE

CHAPTER 3 – DISASSEMBLY 3–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SECTION 1 – DISASSEMBLY/REASSEMBLY JOB CARDS 3–1. . . . . . . . . . . . . . . . . . . . . . . . .

JOB CARD DR 001 – SID SENSOR BOARD 800PL7 3–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

JOB CARD DR 002 – PADDLE BOARD 800PL8 3–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

JOB CARD DR 003 – MAGNIFICATION SENSOR BOARD 800PL14 3–9. . . . . . . . . . . . . . . . .JOB CARD DR 004 – INTER–ARM TILT SENSOR BOARD 800PL15 3–11. . . . . . . . . . . . . . . .

JOB CARD DR 005 – BOARD CALIBRATION 3–15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

JOB CARD DR 006 – PHOTOMULTIPLIER CELL & PHOTOMULTIPLIER TUBE 3–21. . . . . .

JOB CARD DR 007 – COLLIMATOR 3–23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

JOB CARD DR 008 – COMPRESSION MOTOR AND BELTS 3–25. . . . . . . . . . . . . . . . . . . . . . .

JOB CARD DR 009 – GANTRY CPU BATTERY 3–31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

JOB CARD DR 010 – OPTICAL FIBERS 3–33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

JOB CARD DR 011 – X–RAY TUBE HOUSING 3–35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

JOB CARD DR 012 – LAMP OF LIGHT CENTERING DEVICE 3–41. . . . . . . . . . . . . . . . . . . . .

JOB CARD DR 013 – MIRROR 3–43. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

JOB CARD DR 015 – FILTER WHEEL 3–45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

JOB CARD DR 016 – GAS SPRING 3–47. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

JOB CARD DR 017 – GANTRY ARM AND TUBE HOUSING SPACER COVERS 3–51. . . . . .

JOB CARD DR 018 – GANTRY COLUMN COVERS 3–57. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

JOB CARD DR 019 – DATA BACK–UP (SAVE OR LOAD), GENERATOR/GANTRY STATISTICS AND ERROR CODES BACK–UP 3–59. . . . . . . .

JOB CARD DR 021 – GENERATOR CPU BATTERY 3–67. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

JOB CARD DR 022 – INVERTER – FILTERING CAPACITORS 3–69. . . . . . . . . . . . . . . . . . . . .

JOB CARD DR 023 – INVERTER – THYRISTORS/DIODES 3–73. . . . . . . . . . . . . . . . . . . . . . . .JOB CARD DR 024 – GENERATOR COVERS 3–77. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

JOB CARD DR 025 – HV AND KV/MA TANK 3–79. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

JOB CARD DR 026 – MAGNIFICATION DEVICE 3–83. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

JOB CARD DR 027 – ARM ANGLE SENSOR 3–85. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .


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CHAPTER TITLE PAGE

CHAPTER 4 – ERROR CODES 4–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SECTION 1 – ERROR CODE STRUCTURE 4–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 2 – ERROR CODE LIST 4–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 3 – ERROR CODES: KNOWN ROOT CAUSES 4–20. . . . . . . . . . . . . . . . . . . . . . . . . . .

CHAPTER 5 – TROUBLESHOOTING GUIDE 5–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SECTION 1 – TROUBLESHOOTING GUIDE JOB CARDS 5–1. . . . . . . . . . . . . . . . . . . . . . . . . . .

JOB CARD TSG 001 – GENERATOR POWER – UP SEQUENCE TROUBLESHOOTINGFLOW CHARTS 5–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

JOB CARD TSG 002 – PHOTO CELL TROUBLESHOOTING FLOW CHARTS 5–5. . . . . . . . .

JOB CARD TSG 003 – HEATER TROUBLESHOOTING FLOW CHARTS 5–7. . . . . . . . . . . . . .

JOB CARD TSG 004 – HV TROUBLESHOOTING FLOW CHARTS 5–9. . . . . . . . . . . . . . . . . . .

JOB CARD TSG 005 – ANODE ROTATION TROUBLESHOOTING FLOW CHARTS 5–11. . . .

JOB CARD TSG 006 – BIAS TROUBLESHOOTING FLOW CHARTS 5–13. . . . . . . . . . . . . . . . .

JOB CARD TSG 007 – TUBE HOUSING ANGULATION TROUBLESHOOTINGFLOW CHARTS 5–15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

JOB CARD TSG 008 – TELESCOPIC COLUMN TROUBLESHOOTING FLOW CHARTS 5–17.

JOB CARD TSG 009 – LIGHT CENTERING DEVICE TROUBLESHOOTINGFLOW CHARTS 5–19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

JOB CARD TSG 010 – COMPRESSION TROUBLESHOOTING FLOW CHARTS 5–21. . . . . . . .

JOB CARD TSG 011 – REAR, LATERAL AND FRONT COLLIMATOR TROUBLESHOOTINGFLOW CHARTS 5–23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

JOB CARD TSG 012 – FILTER TROUBLESHOOTING FLOW CHARTS 5–25. . . . . . . . . . . . . . .

JOB CARD TSG 013 – ARM ROTATION TROUBLESHOOTING FLOW CHARTS 5–27. . . . . . .

JOB CARD TSG 014 – GRID MOVEMENT TROUBLESHOOTING

FLOW CHARTS 5–29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .JOB CARD TSG 015 – INTER–ARM LOCK COMMAND TROUBLESHOOTING

FLOW CHARTS 5–35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

JOB CARD TSG 016 – GANTRY SENSOR STATUS TROUBLESHOOTING 5–37. . . . . . . . . . . .

JOB CARD TSG 017 – ARM SYNC TROUBLESHOOTING FLOW CHARTS 5–41. . . . . . . . . . .

JOB CARD TSG 018 – X–RAY TUBE MA MEASUREMENT TROUBLESHOOTING 5–43. . . .

JOB CARD TSG 019 – GENERATOR INTERFACE INPUT TROUBLESHOOTING 5–45. . . . . .

JOB CARD TSG 020 – CONSOLE TROUBLESHOOTING 5–49. . . . . . . . . . . . . . . . . . . . . . . . . . .

JOB CARD TSG 021 – FLOATING POINT CALCULATION ERROR 068/022 5–51. . . . . . . . . . .

CHAPTER 6 – BLOCK DIAGRAMS 6–I. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .


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THIS SERVICE MANUAL IS AVAILABLE IN ENGLISH ONLY.

IF A CUSTOMER’S SERVICE PROVIDER REQUIRES A LANGUAGE OTHER THANENGLISH, IT IS THE CUSTOMER’S RESPONSIBILITY TO PROVIDE TRANSLATIONSERVICES.

DO NOT ATTEMPT TO SERVICE THE EQUIPMENT UNLESS THIS SERVICEMANUAL HAS BEEN CONSULTED AND IS UNDERSTOOD.

FAILURE TO HEED THIS WARNING MAY RESULT IN INJURY TO THE SERVICEPROVIDER, OPERATOR OR PATIENT FROM ELECTRIC SHOCK, MECHANICALOR OTHER HAZARDS.

CE MANUEL DE MAINTENANCE N’EST DISPONIBLE QU’EN ANGLAIS.

SI LE TECHNICIEN DU CLIENT A BESOIN DE CE MANUEL DANS UNE AUTRELANGUE QUE L’ANGLAIS, C’EST AU CLIENT QU’IL INCOMBE DE LE FAIRETRADUIRE.

NE PAS TENTER D’INTERVENTION SUR LES ÉQUIPEMENTS TANT QUE LEMANUEL SERVICE N’A PAS ÉTÉ CONSULTÉ ET COMPRIS.

LE NON-RESPECT DE CET AVERTISSEMENT PEUT ENTRAÎNER CHEZ LETECHNICIEN, L’OPÉRATEUR OU LE PATIENT DES BLESSURES DUES À DESDANGERS ÉLECTRIQUES, MÉCANIQUES OU AUTRES.

DIESES KUNDENDIENST–HANDBUCH EXISTIERT NUR INENGLISCHER SPRACHE.FALLS EIN FREMDER KUNDENDIENST EINE ANDERE SPRACHE BENÖTIGT, ISTES AUFGABE DES KUNDEN FÜR EINE ENTSPRECHENDE ÜBERSETZUNG ZUSORGEN.

VERSUCHEN SIE NICHT, DAS GERÄT ZU REPARIEREN, BEVOR DIESESKUNDENDIENST–HANDBUCH NICHT ZU RATE GEZOGEN UND VERSTANDENWURDE.

WIRD DIESE WARNUNG NICHT BEACHTET, SO KANN ES ZU VERLETZUNGENDES KUNDENDIENSTTECHNIKERS, DES BEDIENERS ODER DES PATIENTENDURCH ELEKTRISCHE SCHLÄGE, MECHANISCHE ODER SONSTIGE GEFAHRENKOMMEN.

ESTE MANUAL DE SERVICIO SÓLO EXISTE EN INGLÉS.

SI ALGÚN PROVEEDOR DE SERVICIOS AJENO A GEMS SOLICITA UN IDIOMAQUE NO SEA EL INGLÉS, ES RESPONSABILIDAD DEL CLIENTE OFRECER UNSERVICIO DE TRADUCCIÓN.

NO SE DEBERÁ DAR SERVICIO TÉCNICO AL EQUIPO, SIN HABER CONSULTADO YCOMPRENDIDO ESTE MANUAL DE SERVICIO.

LA NO OBSERVANCIA DEL PRESENTE AVISO PUEDE DAR LUGAR A QUE ELPROVEEDOR DE SERVICIOS, EL OPERADOR O EL PACIENTE SUFRAN LESIONESPROVOCADAS POR CAUSAS ELÉCTRICAS, MECÁNICAS O DE OTRANATURALEZA.

WARNING

AVERTISSEMENT

WARNUNG

AVISO


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ESTE MANUAL DE ASSISTÊNCIA TÉCNICA SÓ SE ENCONTRADISPONÍVEL EM INGLÊS.SE QUALQUER OUTRO SERVIÇO DE ASSISTÊNCIA TÉCNICA, QUE NÃO A GEMS,SOLICITAR ESTES MANUAIS NOUTRO IDIOMA, É DA RESPONSABILIDADE DOCLIENTE FORNECER OS SERVIÇOS DE TRADUÇÃO.

NÃO TENTE REPARAR O EQUIPAMENTO SEM TER CONSULTADO ECOMPREENDIDO ESTE MANUAL DE ASSISTÊNCIA TÉCNICA.

O NÃO CUMPRIMENTO DESTE AVISO PODE POR EM PERIGO A SEGURANÇA DOTÉCNICO, OPERADOR OU PACIENTE DEVIDO A‘ CHOQUES ELÉTRICOS,MECÂNICOS OU OUTROS.

IL PRESENTE MANUALE DI MANUTENZIONE È DISPONIBILESOLTANTO IN INGLESE.

SE UN ADDETTO ALLA MANUTENZIONE ESTERNO ALLA GEMS RICHIEDE ILMANUALE IN UNA LINGUA DIVERSA, IL CLIENTE È TENUTO A PROVVEDEREDIRETTAMENTE ALLA TRADUZIONE.

SI PROCEDA ALLA MANUTENZIONE DELL’APPARECCHIATURA SOLO DOPO AVERCONSULTATO IL PRESENTE MANUALE ED AVERNE COMPRESO IL CONTENUTO.

NON TENERE CONTO DELLA PRESENTE AVVERTENZA POTREBBE FARCOMPIERE OPERAZIONI DA CUI DERIVINO LESIONI ALL’ADDETTO ALLAMANUTENZIONE, ALL’UTILIZZATORE ED AL PAZIENTE PER FOLGORAZIONEELETTRICA, PER URTI MECCANICI OD ALTRI RISCHI.

ATENÇÃO

AVVERTENZA


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vii

NUMBER FORMAT REVISION2252561-100TPH 1A4

REVISION HISTORY

REV DATE REASON FOR CHANGE

0 September 2, 1999 Initial release for DMR+.

1 February 3, 2000 Program Marble (DMR+ M5) SPR BUCge49917

LIST OF EFFECTIVE PAGES

PAGENUMBER

REVISIONNUMBER

PAGENUMBER

REVISIONNUMBER

PAGENUMBER

REVISIONNUMBER

Title pageSafety Instruction

1

i thru viii 1

1–1 thru 1–8 1

2–1 thru 2–24 1

3–1 thru 3–86 1

4–1 thru 4–20 1

5–1 thru 5–90 1

6–i thru 6–ii6–1 thru 6–30

11


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I N T R O D U C T I O N


1–1

CHAPTER 1 – INTRODUCTION

SECTION 1MAINTENANCE TOOLS

1–1 Mammocom

Diagnostic assistance is provided by many maintenance tests, accessible from a serviceterminal connected to generator interface board 400PL2, and using communication softwareknown as “Mammocom”. The use of this software is described in Chapter 2.

The diagnostic tests are accessed through a set of menus, called up on the screen of the serviceterminal as required. These menus are linked in a tree structure. Refer to Illustrations 1–1 to1–4 for an overview of this structure. Illustrations 1–1 and 1–2 refer to Generatormaintenance; Illustrations 1–3 and 1–4 refer to Gantry maintenance.

1–2 Module Disassembly/Reassembly

A set of job cards giving instructions for module disassembly/reassembly is provided inChapter 3.

1–3 Error codes

Error codes are given on the DMR console when the system detects any anomaly in operation.Chapter 4 describes and lists these codes (in their “technical code” format). For each code itgives the meaning and, where relevant, recommends which of the Troubleshooting guides(Chapter 5) should be consulted first to trace the error.

1–4 Troubleshooting Guides

A set of Troubleshooting Guides (TSG) is provided in Chapter 5. These give recommendedprocedures for tracing and correcting faults.

1–5 Block Diagrams

Block Diagrams for the various parts of the system are provided in Chapter 6.


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SECTION 2DIAGNOSTIC PROCEDURE

2–1 Power-up problems

The full DMR power-up is defined as being the status corresponding to the correct generationof two signals : and INV_SUPPLY_OK , i.e:

Level “1” on TP27 on board 400PL2 ( and.

Level “1” on TP25 on board 400PL2 ( – (see Diagram 1 in A2).

The service terminal cannot be used for diagnostic assistance until the Senographe DMR is inthe state defined above.

The various stages of the power-up are shown (along the time axis) in the diagram onpage 3/11 of TSG01.

2–2 Problems generating error messages

2–2–1 Function of self-test

For most of the tests concerning the generator, the test line is in either the “active” or“inactive” state. The next line, “Self-test”, is in either the “Yes” or “No” state.

1. Configuration

If the responses received by the CPU are not as expected, the CPU board immediatelycancels all commands passed to the hardware, even if the user maintains the testcommand (1st or 2nd).

2. Configuration

The CPU maintains the commands passed to the hardware for as long as the test is stillactivated by the user, even if the responses received by the CPU are not as expected. Thisenables significant values to be measured on the hardware.

2–2–2 Screen facilities

For the HT function, hardware values can be measured using two sub-tests : The SCR gate

drive test and short circuit inverter test.Other screens display the static status of certain signals (TSG 016 and TSG 019).

2–3 CPU board and interface problems

Boards concerned :

Generator : 400PL3 and 400PL2,

Gantry : 800PL3 and 800PL2.

When a Trouble Shooting Guide is used to identify and replace defective boards, the resultingreplacement will very rarely concern the two CPU boards. This is due to the simple fact that, if the system is generating error codes and activating various tests, then the CPU boards areprobably serviceable.


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2–3–1 CPU board diagnostic

The two CPU boards (400PL3 and 800PL3) execute, independently, identical internal tests, ateach system power-up. When the ON button is pressed, there is a delay of around 2.5s beforeLED DS1 “TEST OK” lights up and remains on, if the internal test results are correct.

If LED DS1 does not light up, replace the CPU boards (the two CPU boards only use the +5V).

Note: The internal tests do not check bus G64.

2–3–2 Error codes generated by Generator CPU board 400PL3 and Generator Interface board 400PL2 together

After the internal tests mentioned above have been successfully executed, Generator CPUboard 400PL3 runs the INTERFACE GENE test. An incorrect result for this test generateserror codes between 004/001 and 004/018 and, if this is the case, it is recommended that theGenerator CPU board 400PL3 and the Interface board 400PL2 both be changed.

2–3–3 Error codes generated by Gantry CPU board 800PL3 and Gantry Interface board 800PL2 together

Gantry CPU board 800PL3 runs a test similar to that mentioned in 2-3-2, above. An incorrectresult for this test generates error codes between 101/001 and 101/008 and, if this is the case, itis recommended that the Gantry CPU board 800PL3 and the Interface board 800PL2 both bechanged.

Note: Error codes between 101/001 and 101/008 cannot be displayed if the serial line (twooptical fiber cables) is not operating, between the two CPUs.

The internal tests mentioned in 2-3-1, above, test all the serial links by looping back to theCPUs. However, this looping back does not include the “optical” link circuits on interfaceboards 400PL2 and 800PL2.

SECTION 3USE OF THE BLOCK DIAGRAMS

On a test screen, when a software command line or a status line passes through an interfaceboard (400PL2 or 800PL2), the “hardware point” is shown, next to the bus data, on thecorresponding block diagram. The TSGs also give the logic level relationships. To locatecorresponding signals on the block diagrams and the drawings, the signals shown on the block diagram must be found in the alphabetically sorted list given in the s.m. The “FROM” and“TO” columns specify the drawing pages to be consulted.

SECTION 4SENOGRAPHE DRAWINGS

The Senographe drawings were produced using MENTOR software, which also draws theprinted circuit layouts. Thus, the drawings contain quite a lot of information not required bythe maintenance function. For example, in the 400PL1 drawing, pages 5, 7, 12, 16, 21 and 26are of no use whatsoever to maintenance.

The rule is that points at the same electrical equipotential must be given strictly identicalnames. A signal which is inverted twice must not be given its initial name as it is no longer thesame electrical point.

The sign used in the drawings indicates that one electrical point has two differentname, and DOES NOT correspond to a physical strap.


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GE Medical Systems Senographe DMR +

REV 1 asm 2252561-100

1–5

ILLUSTRATION 1–1GENERATOR MAINTENANCE MENU TREE STRUCTURE


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GE Medical Systems

REV 1

ILLUSTRATION 1–2GENERATOR MAINTENANCE MENU TREE STRUCTURE (CONTINUED)


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GE Medical Systems Senographe DMR +

REV 1 asm 2252561-100

1–7

ILLUSTRATION 1–3GANTRY MAINTENANCE MENU TREE STRUCTURE


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GE Medical Systems

REV 1

ILLUSTRATION 1–4GANTRY MAINTENANCE MENU TREE STRUCTURE (CONTINUED)


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2–1

CHAPTER 2 – “MAMMOCOM” COMMUNICATION SOFTWARE

SECTION 1PURPOSE OF THE SOFTWARE

The MAMMOCOM Communication Software provides the connection from the SenographeDMR to a PC (laptop)* to access GEMS-reserved maintenance tests.

The software is composed of several operating modules:

ANSI–compatible VT200 terminal emulator (restricted).

On–line Help on the various Senographe menus.

File transfer modules between the Senographe and the PC.

Note: The terminal emulator menu (and this menu only) can also be used on the Senix (settransmission speed to 1200 bauds).

Note: MAMMOCOM can also be run under Windows, inside a DOS window (using full screenor not). In this case the creation of a “PIF” file is recommended; see your Windowsdocumentation.

* Any 8088, 8086, 80286 or 80386 microprocessor–based computer operating underMS–DOS (Version 2.1 or higher)

SECTION 2“MAMMOCOM” FLOPPY DISK CONTENTS

The content of the MAMMOCOM floppy disk is classified as PROPRIETARY.The disk may be duplicated for the purpose of a backup using the Disk Copycommand of MS–DOS, or installed on the hard disk (INSTALL). TheMAMMOCOM Software is protected against breach of the copyright law.

2–1 Floppy Disk Contents

– Select drive and directory to access INSTALL.

– Enter INSTALL .

– Give target drive and directory where you want to install MAMMOCOM.

README.DOC: (A: INSTALL README.DOC)

Text file to explain the content of the floppy disk.

MAMMOCOM Software: Terminal Emulator for Senographe DMR/SMR/DM. Lastrelease is V1.16 dated March 26, 1996; file size = 98 KB.

CAUTION


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2–2

STAV.DAT: (A: INSTALL STAV.DAT)

Configuration of the executable file: STAV.EXEUser defined, default communication parameters, file directory and extension (for filetransmission utilities).

Do not try to display this file as it is a binary file.

SECTION 3INSTALLATION ON HARD DISK

Note: For the example the environment used is under MS–DOS.Proceed as follows:

1. Switch on laptop.2. Wait for the auto–boot with the prompt : C:\>

3. Insert MAMMOCOM floppy disk.

4. Enter A: and hit .

5. Enter INSTALL and hit .

6. Accept or change the Installation Directory displayed (default is C:\MAMMOCOM).

ILLUSTRATION 2–1CLEAR EMULATOR SCREEN SELECTION

Directory Name

Choose Directory

Enter : Select Ctrl–E : Exit

C:\MAMMOCOM

GEMS INSTALL – MONTH DAY, YEAR

7. Hit INSTALL copies the files and automatically creates the required sub–directories.

8. Reselect the drive C, enter C: (A: \ > C:)and hit .


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2–3

9. Select MAMMOCOM, enter cd MAMMOCOM (C:\ > cd MAMMOCOM)

and hit .10. Execute the MAMMOCOM application, enter STAV (C:\MAMMOCOM>STAV)

and hit .

11. Then proceed to section 4.

Note: Once the application has be done on your laptop, and in order to have access to theMAMMOCOM application, execute the steps 9 to 11.


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SECTION 4GENERAL USER INTERFACE

The various software functions are accessed via standard menus. The screen menus,therefore, are all similar. Only the function screens differ depending on the function to bemade.

4–1 Menu Screen Structure

The screen is composed of three fields:

Screen title (for Main Menus only).

Selection box.

Prompt messages.

ILLUSTRATION 2–2MAIN MENU

Release : V1.16 March 26, 1996

Terminal emulatorChange com. parametersFile transmissionSave emulator screenDOS shellClear emulator screen

Enter : Select Ctrl–E : Exit Alt–H : Help

M A M M O C O M GEMS

Copyright GEMS :Seno Service Terminal Software

Note: TAV = Service Terminal (French: Terminal Après–Vente).

The Selection Box displays the accessible submenus. The Up/Down cursor keys are used toscan different options which are displayed one after the other in video reverse.

To select an option, hit . To return to the previous menu, hit –. To exit theMAMMOCOM Program (from the Main Menu), hit –.

For most of the menus, hit – to get a current screen Help, describing the variousoptions offered.

The use of each function key is given on the message line at the foot of the screen.


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4–2 Line Editor

With the arrow keys select “File transmission” then .

Select “File name” then .

ILLUSTRATION 2–3FILE NAME IN THE TRANSMISSION MENUS

Change Name

FileNamePARAM

Enter : Select ALT–M : Prev menu

This editor displays a box containing a title (the name of the parameter to be modified) and avalue (default or previously selected) of the parameter being considered.

Data entry is always made in Insertion Mode, ie, each character entered takes the place of thecharacter previously located at the cursor.

The acknowledged function keys are:

BACKSPACE: deletes the character located immediately to the left.

RIGHT ARROW or LEFT ARROW: moves the cursor.

ENTER: returns to previous menu by confirming the character chain entered.

ALT–M: returns to previous menu by restoring the character chain found at the start.


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SECTION 5TREE STRUCTURE OF AVAILABLE FUNCTIONS

ILLUSTRATION 2–4TREE STRUCTURE OF AVAILABLE FUNCTIONS

MENU PRINCIPAL

TERMINALEMULATOR

CHANGECOMUNICATIONPARAMETERS

FILETRANSMISSION

SAVEEMULATOR

SCREEN DOSSHELL

TRANSMIT RECEIVE

EDIT

SAVESCREEN

EDIT

9600480024001200 600 300 150 110

ASCII CODED

SAVESUFFIXDIRECTORY SUFFIX SAVE

EDIT EDIT EDIT EDIT

SAVE

EVENODDNONE

0708

0102

COM 1COM 2

CLEAREMULATOR

SCREEN

FILENAME

DIRECTORY SUFFIX

DIRECTORY

FILENAMEDIRECTORY SUFFIX NAMENAME

BAUDRATE

COM–PORT

PARTY STOPLENGTHBITS

Underlined functions are those functions which start operating immediately when selected.


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SECTION 6TERMINAL EMULATION

This option is used to emulate an ANSI ASCII terminal, VT200. The Senographe DMR has aserial connection to which this type of terminal can be connected to simulate the console andaccess the Maintenance Menus.

6–1 Accessing the Function

From the Main Menu, select: Terminal Emulator, then

ILLUSTRATION 2–5TERMINAL EMULATION SELECTION

Terminal emulator


Release : V1.16 March 26, 1996Copyright GEMS :Seno Service Terminal Software


File transmissionSave emulator screenDOS shellClear emulator screen

Change com. parameters

The terminal function starts immediately following selection, and the Main Menu screen is

replaced by the Terminal screen.

6–2 User Interface

Once the function is entered, the connection is initialized with the communicationsparameters by default or selected in the Change Com. Parameters Menu.


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At the first entry, the Terminal screen is erased and the TERMINAL EMULATOR messageappears.

ILLUSTRATION 2–6TERMINAL EMULATOR MESSAGE

TERMINAL EMULATOR

CTRL–D : Disconnect F 10 : Connect Alt–M : Main menu

The cursor appears in the top lefthand corner of the screen.

A VT200 terminal displays 24 lines of 80 characters. The PC has a screen of 25 lines. Line25 displays a prompt message for the main access functions to the Senographe:

F10:

This key is used to connect to the Senographe DMR and Senographe 600T Senix HF (thecommunications parameters should be modified for the latter).

Note: Connection to the Senographe DMR can be made via this software only, as no otherterminal emulator is recognized by the Senographe.

CTRL–D:

Used to disconnect the two Senographe units.

Alt–M:

Used to return to the Main Menu of the MAMMOCOM software without breaking theconnection. This means that a later selection of the terminal emulator returns the screendisplayed before Alt–M was hit, and dialog with the Senographe can take up where it leftoff. This function is necessary to return to the Help Menus or to transfer files.

The seven PC keys, F1 thru F6 and F9, simulate the seven keys surrounding the DMR consolereadouts and give access to all the menus (Medical, Installation, and Maintenance).


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6–3 Connection Hardware

The PC/Senographe connection is made via an RS232 serial connection supported by a DB9connector installed on the Generator Interface Board located in the Generator Cabinet.

6–4 Communications Protocol

This is a character protocol which involves the transmission of ASCII characters in full duplexwith data flow control (XON/OFF Protocol).

The default parameters are:

Baud rate: 9600

com–port: Com 1Parity: Even

Length: 07

Stop bits: 01

These parameters correspond to the connection with the Senographe DMR, but they can bemodified for the connection with another machine (eg: 1200 bauds for Senix HF).

6–5 Emulator Restrictions

This software is created specially to be used with the Senographe DMR and Senix HF.Therefore, this software emulates only those functions required for such use. The result is acompromise between the speed of the reply (loading and run time) and the level of compatibility required.

The only function keys recognized are:

Function keys used by the Senographe,

Cursor keys,

Four keys: Insertion, Backspace, Prev Screen, and Next Screen.

The emulator does not recognize display commands in large characters, semi–graphic, orunderlined (due to the CGA LCD boards of the PC).

Most of the cursor–positioning commands as well as publishing commands are available. The

scrolling area is programmable. The cursor position and the usual character attributes can bestored and restored.

This software’s performance is closer to a terminal than the standard ANSI.SYS file.


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2–10

SECTION 7COMMUNICATIONS PARAMETERS

This menu is used to modify the communications parameters of the serial connection betweenthe PC and the Senographe. The new values can be backed up in order to find them by defaultin future uses of the MAMMOCOM Software.

7–1 Accessing the Menu

From the Main Menu, select: Change Com. Parameters.

ILLUSTRATION 2–7CHANGE COM. PARAMETERS SELECTION





The software displays the main parameter change screen.


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ILLUSTRATION 2–8MAIN PARAMETER CHANGE SCREEN

COMMUNICATION PARAMETERS

Baud rate : 9600Com–port : Com1Parity : EvenLength : 07Stop bits : 01Save

Enter : Select Alt–H : Help Alt–M : main menu

7–2 Modifying the Parameters

7–2–1 Baud Rate Menu

This menu offers the following transmission speeds:9600, 4800, 2400, 1200, 600, 300, 150, and 110.

To change the baud rate, select the desired rate and hit . If no change is required, hit– to return to the Main Menu.

7–2–2 Com_port Menu

Selection is possible between serial ports COM 1 and COM 2.

7–2–3 Parity Menu

This menu offers the following parity bits:

Even, Odd, None.

7–2–4 Length Menu

This menu is used to select the number of data bits per character. Either seven of eight data bitsare selected.

7–2–5 Stop Bit Menu

This menu is used to select the number of stop bits at the end of a character. The selection ismade between one and two bits.


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7–2–6 Save FunctionThis option is used to save the communications parameters selected in order to find them asdefault values in future use of the MAMMOCOM Software. The save is made by defaultwhen the option is selected.

The file created is: STAV.DAT.

SECTION 8FILE TRANSMISSION

This menu is used to transfer DMR files to the PC, and vice–versa.

Two types of file are concerned:

Text files in any format.

Encoded files with the Motorola Exormacs protocol.

8–1 Preparing the Transfer

The system must be in emulation to make a file transfer. The file transfer runs as follows:

1. To link up with the DMR, place the terminal in emulation, as follows: at MAMMOCOMstart–up, select the Terminal Emulator and connect to the Senographe by pressing F10.

2. Run the menu tree structure on the DMR until the Transfer Menu is reached.

The possibilities are as follows:– Arm error codes transfer: @

– Arm data save: @

– Arm data load: @

– Gene error codes transfer: @

– Gene data save: @

– Gene data load: @

– Gene statistics transfer: @

Where @ is the Maintenance screen Number, refer to the tree structures inChapter 1.

3. In emulation, line No. 25 gives the following commands:

Ctrl–D: Disconnect F10: Connect Alt–M: Main Menu

4. Hit – to access the Main Menu without disconnecting from the Senographe.

5. Select: File Transmission.


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ILLUSTRATION 2–9FILE TRANSMISSION SELECTION





This selection displays the File Transmission Menu (below) in which PARAM is the file nameby default if no other default name was saved beforehand.


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ILLUSTRATION 2–10FILE TRANSMISSION MENU

File Transmission

File name : PARAMDirectory name : A:Suffix : DATTransmit : PC –> EquipmentReceive : Equipment –> PC

Enter : Select Alt–M : Main menuAlt–H : Help

8–2 Type of Files TransferredTwo main types of file are concerned by file transfer between PC and Senographe DMR:

Coded files.

ASCII files.

8–2–1 Coded Files

These are binary files which observe the Motorola Exormacs format. Coded files are used totransfer the Senographe calibration variables for back–up on floppy disk. The protocolselected ensures that the data transmitted are correct during PC to Equipment transfer.

A special menu is used to check the file transmitted by the Senographe. If the transfer has runwithout error detection, it is certain that the file transferred can be reloaded on the Senographe.

The software determines the end of the transmission when it receives a special framedescribed in the protocol.

In the PC–to–Senographe transfer, the file type is not processed by the MAMMOCOMsoftware. All the characters of the file are transmitted.

8–2–2 ASCII Files

The ASCII files do not observe any format. The end of transmission is detected by receptionof CTRL_Z. Statistics and error codes are transmitted according to this format.


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8–3 FILE NAME Option

Selecting this option call the line editor to enter the file name. The access path and theextension are defined in the following menu (Directory and Suffix).

To return to the File Transmission Main Menu without changing the name by default, hit–.

To return to the File Transmission Main Menu and select the new name displayed by theline–editor, press .

8–4 DIRECTORY and SUFFIX Options

These options are used to access the menu where the tree–structure and extensions of the filesare encoded. When Directory name selected, the following menu appears:

ILLUSTRATION 2–11DIRECTORY AND SUFFIX SELECTION

File directory

Directory : A:Suffix : DATSave


The Directory option of this menu is used to find the access path for the file name.

The Suffix option refers to the file name extension.

The Save option is used to save the data structures for the two options above in order tofind them as default values when the MAMMOCOM Software is used in a futureoperation.

Note: The floppy disk should be write–protected. Though if saving the DMR data, select thedrive C or new floppy disk in drive A.


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2–16

8–5 TRANSMIT Option

This option is selected to inform the DMR that you wish to make a PC–to–Senographe DMRtransfer of the file name previously selected. This option runs in two phases:

1. Automatic execution of the default transfer validation command: CTRL O + F1

2. Transfer.

Note: To have access at this menu see Job Card DR019 from the Advanced Service Manual(2118393–104 rev. 1).

8–6 RECEIVE Option

This option is selected to inform the DMR that you wish to receive a file (ie, aSenographe DMR–to–PC file transfer). The file may concern:

ASCII file.

Coded file (see paragraph 8–2–1).

Note: To have access at this menu see Job Card DR019 from the Advanced Manual(2118393–104 rev.1).

The selection of this option calls another menu giving the choice of file types to be transferred.

ILLUSTRATION 2–12CHOICE OF FILE TYPES TO BE TRANSFERRED MENU

FILE TYPES

ASCII FileCoded file


Selecting one of other of these options causes:

Automatic execution of the default transfer validation command: CTRL O + F1

The actual transfer.

8–7 Display Window in Transfer

When either TRANSMIT or RECEIVE is selected, a display window of characterstransmitted appears in order to make a visual check of the transmission.


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ILLUSTRATION 2–13SCREEN DURING TRANSMISSION

Transmitting file: \STAV\EXEMPLE.DAT to Equipment

Characters transmitted display area

Abort : ALT X

Various messages are displayed:

Reception successful

File not found

Reception error

Transmission error


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SECTION 9SAVING THE EMULATOR SCREEN ON A FILE

The menu is used to save the emulator screen of the terminal on an ASCII File. The videoattributes are lost because they cannot be used on an ASCII File which must compatible withany line editor or display software.

9–1 Accessing the Menu

From the Main Menu of the MAMMOCOM Software, select: Save Emulator Screen.

ILLUSTRATION 2–14SAVE EMULATOR SCREEN SELECTION




The save main menu is displayed.


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“ M

A M M O C O M ”


2–19

ILLUSTRATION 2–15SAVE EMULATOR MENU

SAVE EMULATOR SCREEN

File name :PARAMDirectory name :A:Suffix :DATSave screen :


9–2 FILE NAME OptionThis option is used to modify the name of the backup file. The standard line–orientated editoris used.

9–3 DIRECTORY and SUFFIX Options

These options are used to access a Menu which selects File Directory and Extensions. Thefollowing menu appears.


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2–20

ILLUSTRATION 2–16DIRECTORY AND SUFFIX MENU

File Directory

Directory : ASuffix : DAT

Save

Enter : Select Alt–M : Prev menuAlt–H : Help

Directory: Finds the access path for the file name.

Suffix: File name extension.

Save: Saves the data structures for the two options above in order to find them as

default values in future operations of the MAMMOCOM.

9–4 “Save Screen” Function

When the file name is selected, this function saves the screen. There are three possibilities.

9–4–1 Terminal Emulator Option not Selected Beforehand

No save to make as the screen does not exist.

9–4–2 File Selected to Save Screen does not Exist

The MAMMOCOM Software creates the file and saves the screenful inside.

The “Screen saved in file: ...” message appears.

9–4–3 Selected File Exists

The MAMMOCOM Software adds the new screen at the end of this file.

The “Screen appended to file: ...” message appears.


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2–21

SECTION 10ACCESS TO DOS

This function is used to access the MS–DOS without exiting from the MAMMOCOMSoftware.

The PC can remain connected to the Senographe, and all MAMMOCOM Software operatingparameters are preserved. An advantage in running the MAMMOCOM Software from afloppy diskette is that this DOS accessing procedure is much faster than exiting STAV andrestarting it.

From the STAV Main Menu, select: DOS Shell.

ILLUSTRATION 2–17DOS SHELL SELECTION





DOS is accessed immediately.

The program displays the “Type Exit to return to Terminal Emulator”. The Exit command is astandard command of MS–DOS and recognized by the COMMAND.COM interpreter. Onceit is used, the STAV Main Menu reappears and the session can resume.

If the MAMMOCOM Software is run from a floppy disk, the MAMMOCOMshould not contain an MS–DOS version which is incompatible with the PC. If theSTAV finds a system on the current disk drive, it will use it in preference to theusual system of the PC.

For simplicity, use a MAMMOCOM floppy disk without any system.

CAUTION


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2–22

SECTION 11CLEARING THE EMULATOR SCREEN

This option is used to clear the emulator screen of the terminal.

From the STAV Main Menu, select: Clear Emulator Screen.

ILLUSTRATION 2–18CLEAR EMULATOR SCREEN SELECTION

Terminal emulatorChange com. parametersFile transmissionSave emulator screenDOS shell


Clear emulator

screen

Release : V1.16 March 26, 1996

Copyright GEMS :Seno Service Terminal Software


Once the option is selected, the emulator screen is cleared if the emulator was usedbeforehand. Otherwise, this option has no effect.


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2–23

SECTION 12SAVING PARAMETERS

The following can be modified: communications parameters with the Senographe, Directory,and default suffix of the files to be transferred.

When the current value of one of the parameters is modified, the Save option generates theSTAV.DAT File in the Current Directory.

At each subsequent use of the MAMMOCOM Software, the values contained in the file aretaken by default.

If this file contains both the communications parameters and the names of the sub–directoriesand the suffixes by default, the Save options from the following menus have the same effect:Change Com. Parameters Menu, Save Emulator Screen Menu (Path Selection Menu or FileExtension Menu), and File Transmission Menu.


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2–24

Blank page.


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D I S A S S E M B L Y

Version No.: 1

Senographe DMR+ Job Card DR 001 1 of 2

Purpose: SID SENSOR BOARD 800PL7Date: Jan. 1996

Time: 1 hour Personnel: 1 field engineer


3–3

SECTION 1SUPPLIES

SID sensor board 800PL7.

SECTION 2TOOLS

2.5 mm Allen wrench.

SECTION 3SAFETY PRECAUTIONS

No specific safety precautions are applicable.

SECTION 4PREREQUISITES

None.

SECTION 5PROCEDURE

5.1 Removal of SID sensor board 800PL7

1. Remove the compression arm covers and focal indicator plate (see DR 017 paragraph 5.2).

2. Set the compression arm horizontal, with the head on the left.

3. Switch OFF the DMR electrical power.

4. On SID sensor board 800PL7, disconnect connector XJ1.

5. Remove the three mounting screws (2.5 mm Allen wrench) on SID sensor board 800PL7.

Note: The image receiver position must be changed as required.6. Remove SID sensor board 800PL7, through the end of the arm.


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Version No.: 3


Purpose: PADDLE BOARD 800PL8Date: May, 1997



3–5

SECTION 1SUPPLIES

Paddle board 800PL8.

SECTION 2TOOLS

1 mm and 2.5 mm Allen wrenches.

Circlip pliers (5 mm circlip).

Flat screwdriver, 1/4”.




None.

SECTION 5PROCEDURE

5.1 Removal of paddle board 800PL8(see Illustration 1)

1. Remove buttons B1 and B2 (1 mm Allen wrench).

2. Remove screws S1 and S2 from the two plastic half–covers.

3. Remove the two plastic half–covers.

4. Set the arm in the horizontal position.


6. Slacken locking screw on encoder wheel C (21).

7. Remove circlip (18) from one end of the shaft only, and remove washers 34,17 and 16.

8. Remove the two mounting screws (23/24) from the support plate.


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Job Card DR 002 2 of 4PADDLE BOARD 800PL8


3–6

ILLUSTRATION 1PADDLE BOARD 800PL8 AND DETAIL OF BUTTON/SHAFT MOUNTING

25

23

24

21

34

18

17

16

S1

FRONT

Max 3.2 mm pin protrusionMin does not overpass thecompression support frame

S2

B1

B2

B1

Ball latchadjustment screw


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3–7

9. Gently extract the encoder wheel from the optointerrupter by pushing it downwards, and then push theshaft downwards until the circlip groove is at the encoder wheel level.

10. Remove the paddle board support plate.

11. Cut the ty–raps to release connector XJ1 and the ground cable.

12. Remove the three mounting screws on paddle board 800PL8 (2.5 mm Allen wrench).

13. Remove paddle board 800PL8.

5.2 Installation of paddle board 800PL8(see Illustration 1)

1. Install paddle board 800PL8 on its support plate.

2. Reconnect connector XJ1.

3. Insert the equipped support plate into its housing.

4. Reset the shaft and encoder wheel to their initial positions.

The encoder wheel is flexible but FRAGILE.

5. Reinstall the washers (see Illustration 1, bottom) on the shaft, and reinstall the circlip.

6. Install the paddle board support plate (2 mounting screws, 23/24).

The magnet assembly (25) must not be in contact with the Hall effecttransducer (clearance approx. 1 mm).

7. Mount the encoder wheel on its shaft, ensuring that it is central in relation to the optointerrupter.

8. Tighten the encoder wheel locking screw.

9. Reinstall the two ty–raps.

10. Check the ball latch protrusion (see illustration 1): Max 3.2 mm and Min. does not overpass thecompression support frame . If adjustment is necessary unclamp the nut located inside the compressionsupport and rotate the screw to obtain the right protrusion value. Then reclamp the screw with the nut.

11. Install the two half–covers (screws S1 and S2).

12. Install buttons B1 and B2 (1 mm Allen wrench).

13. Check that compression fine adjustment operates correctly – the button shaft must not rotate too freely.If the slight rotation resistance is not as required, check that the washers are correctly installed

(para. 5.2.5 and Illustration 1, items 34, 17 and 16).

CAUTION

CAUTION


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3–8

14. When pressure is applied with a paddle, check that a compression force is indicated.

5.3 Adjustment and functional check

1. Perform job card IST 023 to re–calibrate the compression force.

Note: It is mandatory to check that the maximum compression force cannot be more than 30 daN (maximumallowed by regulations).

2. Check that compression system operates normally in application mode.

THE SENOGRAPHE DMR IS NOW OPERATIONAL WITH A NEW PADDLE BOARD 800PL8.


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Version No.: 1


Purpose: MAGNIFICATION SENSOR BOARD 800PL14Date: Jan. 1996



3–9

SECTION 1SUPPLIES

Magnification sensor board 800PL14.

SECTION 2TOOLS

2.5 mm and 5 mm Allen wrenches.



SECTION 4

PREREQUISITESNone.

SECTION 5PROCEDURE

5.1 Removal of magnification sensor board 800PL14(see Illustration 1)

1. Remove the compression arm covers and sensor plate (see DR 019 paragraph 5–2).


3. Remove the two mounting screws on the magnification unit support (left support only).

4. Remove the support.

5. On magnification sensor board 800PL14, disconnect connector XJ1.

6. Remove board 800PL14 and its support plate.

7. Separate board 800PL14 from its support plate by removing the two mounting screws (2.5 mm Allenwrench).

5.2 Installation of magnification sensor board 800–PL14(see Illustration 1)

1. To install magnification sensor board 800PL14, carry out the above operations, in the reverse sequence

(paragraph 5.1, 7. thru1. ).


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Job Card DR 004 2 of 4INTER–ARM TILT SENSOR BOARD 800PL15


3–12

ILLUSTRATION 1CENTER PART OF COMPRESSION ARM

CABLE GUIDE

BOARD 800PL15

S1

SUPPORTPLATE


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Job Card DR 004 4 of 4INTER–ARM TILT SENSOR BOARD 800PL15


3–14

Blank page


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Version No.: 2


Purpose: BOARD CALIBRATIONDate: Jan. 1996

Time: Variable (depending on the board) Personnel: 1 field engineer


3–15

SECTION 1SUPPLIES

None.

SECTION 2TOOLS

Senographe DMR Service Manual.

Note: The IST xxx references are installation job cards, included in the above–mentioned Service Manual.


Electrical power must always be OFF before any board be removed or reinstalled. In the case of board200PL1 or 200PL2, power must be switched OFF at the main power switch AND in the wall cabinet (risk of electrocution).


None.

SECTION 5PROCEDURE

This Job Card describes the checks and calibration required following the replacement of an electronics

board in the DMR generator, gantry or console.


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Job Card DR 005 2 of 6BOARD CALIBRATION


3–16

ILLUSTRATION 1SENOGRAPHIE DMR – ELECTRONICS BOARD LOCATIONS

701PL1 kV/mA BOARD200PL1 MAINS POWER BOARD200PL2 SUPPLY COMMAND BOARD400PL1 GENERATOR COMMAND BOARD400PL2 GENERATOR INTERFACE BOARD400PL3 GENERATOR CPU BOARD300PL2 ANODE STARTER BOARD300PL1 INVERTER BOARD

100PL1 OPERATOR BOARD100PL2 CONSOLE CONTROL BOARD

800PL9 ENCODER BOARD

800PL8 PADDLE BOARD

800PL15 INTER–ARM TILT SENSOR BOARD

800PL10 BUCKY SENSOR BOARD


800PL7 SID SENSOR BOARD

800PL6 TUBE HOUSING ARM DISTRIBUTION BOARD


800PL16 INTER–ARM LOCKK COMMAND BOARD

800PL12 GANTRY READOUT BOARD

800PL5 COMPRESSION ARM DISTRIBUTION BOARD

800PL14 MAGNIFICATION SENSOR BOARD

800PLL3 GANTRY CPU BOARD

800PL4 PHOTOCELL BOARD

800PL2 GANTRY INTERFACE BOARD

800PL1 GANTRY POWER BOARD

(IN BUCKY)


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3–17

5.1 Generator boards

1. Generator CPU board 400PL3.

– ALWAYS check that the battery jumper is at the right position: X2.

– If the generator installation data was saved on diskette (see DR 019), before the old board wasremoved, reload the parameters and the Seno DMR will then be operational.

It will not be possible to reload directly the parameters if the softwareversion is changed, use the approriate data converter to update the savedparameters from one version to a newer one.

– If the installation data was not saved, carry out the full generator calibration procedure (seeSenographe DMR Service Manual, Chapter 2).

2. Generator interface board 400PL2.

– For calibration, see the following documents:

. Heater current scale factor: IST 001,

. Bias voltage scale factor: IST 002,

. X–ray tube heater current: IST 003.

3. Generator command board 400PL1.

– For calibration, see the following documents:

. Heater current scale factor: IST 001,

. Bias voltage scale factor: IST 002,

. X–ray tube heater current: IST 003.

4. Anode starter board 300PL2.

– No calibration is required on this board.

5. Inverter board 300PL1.

– No calibration is required on this board. For removal, installation and testing, see DR 023.

6. Supply command board 200PL2


7. Mains power board 200PL1.

– No calibration is required on this board. For wiring, see IST 011.

8. kV/mA board 701PL1.

– For useful recommendations and calibration, see DR 025.

CAUTION


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3–18

5.2 Gantry boards

1. Gantry CPU board 800PL3.

– ALWAYS check that the battery jumper is at the right position X2.

– If the gantry installation data was saved on diskette (see DR 019), before the old board wasremoved, reload the parameters and the Seno DMR will then be operational.

It will not be possible to reload directly the parameters if the softwareversion is changed, use the approriate data converter to update the savedparameters from one version to a newer one.

– If the installation data was not saved, carry out the full gantry calibration procedure (seeSenographe DMR Service Manual, Chapter 2).

2. Gantry interface board 800PL2.

– Calibration is required only for HVPM: perform IST 004.

3. Photocell board 800PL4.

a. Carry out the board hardware calibration, see IST 004 and IST 005.

b. To avoid extensive recalibration of the AEC (PM yield), some parameters, related to Stereotix II,can be modified manually.

c. Using the ”Service Terminal” or console (from application mode), the parameters to be modifiedmanually can be accessed through the following selections:

The menu name is: (screen: @ )

(default value, unchanged after ”normal” calibration)

value +1.000E+0 if no Stereotix calibration carried out,value # 1 after Stereotix calibration

d. Return into application mode and configure the Senographe as follows:

. LF ; Mo/Mo,

. 30 kV,

. 1 point mode,

. screen/film combination already calibrated,

. with grid,

. 4 cm plexiglas,

. configure the Seno to display the pose technical parameters,

. insert a cassette with a screen, and a blank film.

CAUTION


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3–19

e. Execute a pose:

. If the measured thickness is 40mm 1mm, can remain at its existing value.

. If the measured thickness is outside the tolerance 40 mm 1 mm, modify by 0.05,for each mm of deviationi.e. increment to decrease the measured thickness, ordecrement to increase the measured thickness.

Example:

To move thickness measurement from 44 to 40 mm:set: = +1.2 (= +1.200E+0).

To move thickness measurement from 34 to 40 mm: set: = +0.7 (= +7.000E–1).

. When gives a thickness value within the tolerance 40mm 1mm, apply the samecoefficient to modify , and

f. Carry out the operations described in Job Card IST 014 (Reference Energy Calibration), at leastto check correct calibration of the phototimer.

4. Gantry power board 800PL1.

– Check offset and gain for grid movement – see TSG 014.

5. Compression arm distribution board 800PL5.

– For calibration of breast thickness measurement – see IST 025.

6. Tube housing arm distribution board 800PL6.

– Remove jumper from XJ16 (delivered for old DMRs compatibility). No calibration is required onthis board.

7. SID sensor board 800PL7.

– No calibration is required on this board. To check the board, see DR 001.

8. Paddle board 800PL8.

– For calibration and checking, see DR 002.

9. Encoder board 800PL9, PL11 and PL13.– Position the sensor very carefully, in relation to the ”active” ring of the encoder.

Incorrect positioning can result in:

800PL13 – for the elevator, incorrect rising speed (3” ramp),

800PL11 – for the compression, actual movement may differ from selected movement,

800PL9 – for end of compression adjustment, irregular movement over one button revolution.

10. Gantry readout board 800PL12.



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3–20

11. Magnification sensor board 800PL14.

– To check the board, see DR 003.

12. Inter–arm tilt sensor board 800PL15.

– To check the board, see DR 004.

13. Inter–arm lock command board 800PL16.


5.3 Console1. Operator board 100PL1.


2. Console control board 100PL2.



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Version No.: 3


Purpose: PHOTOMULTIPLIER CELL ASSEMBLYDate: August 1999



3–21

SECTION 1SUPPLIES

Photomultiplier cell assembly.

SECTION 2TOOLS

Seno DMR Service Manual.


2.5 mm Allen wrench.




None.


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Job Card DR 006 2 of 2PHOTOMULTIPLIER CELL ASSEMBLY


3–22

SECTION 5PROCEDURE

Refer to Illustration 1.

1. Rotate the examination arm to set the tube housing downwards.


3. Remove the image receptor cover (4 screws).

4. Set the cell in position “1” (towards the patient).

5. Disconnect coaxial cables HTPM and IPM (1).

6. Remove the seven screws (2) securing the assembly to the left and right slides (2.5 mm Allen wrench).

7. Remove the photomultiplier cell assembly from the image receptor.

ILLUSTRATION 1PHOTOMULTIPLIER CELL

1

2

2

2

5.1 Installation of photomultiplier cell assembly

To install the photomultiplier cell assembly, carry out the above operations in reverse order.


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Version No.: 1


Purpose: COLLIMATORDate: Jan. 1996

Time: 2 hours Personnel: 1 field engineer


3–23

SECTION 1SUPPLIES

Collimator.

Tyraps.

SECTION 2TOOLS


4 mm Allen wrench.




None.

SECTION 5PROCEDURE

5.1 Removal of collimator

1. Set tube housing arm to convenient position.2. Switch OFF the DMR electrical power.

3. Remove tube housing arm covers (see DR 017 paragraph 5.3).

4. Remove collimator anti–scatter box.

Remove the left side screw and slide out the left panel.

Remove the screw located at the center underside and slide out the box.

5. Remove the two rods retaining front of collimator (4 locking pins).

The collimator swings down freely on its rear shaft.


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Job Card DR 007 2 of 2COLLIMATOR


3–24

6. Remove tyraps along cable harness between collimator and tube housing arm distribution board800PL6.

7. On tube housing arm distribution board 800PL6, disconnect connectors XJ7, XJ8, XJ9, XJ10, XJ15and XJ16 and separate these cables from the rest of the harness.

8. Remove rod retaining rear of collimator (2 locking pins) – push or tap the rod out to the right. Thisreleases the collimator.

9. Remove ground cable on rear of collimator (screwdriver).

Note: Set the screw back on the collimator because it is critical to the motor setting for shipping.10. Remove collimator.

5.2 Installation of collimator

1. Install new collimator (install rear rod and locking pins, followed by front rod and locking pins).

2. On tube housing arm distribution board 800PL6, reconnect connectors XJ7, XJ8, XJ9, XJ10, XJ15 andXJ16, reconstitute the cable harness, installing new tyraps.

3. Reinstall collimator anti–scatter box following the reverse order of section 5.1

4. Reinstall tube housing arm covers (see DR 017 paragraph 5.3).

5.3 Functional check

1. Switch ON the DMR electrical power and check that the self–test is correctly executed.

2. Proceed to collimator check and adjustment: see IST 027, IST 030 and IST 028 in DMR Servicemanual.

THE SENOGRAPHE DMR IS NOW OPERATIONAL WITH THE NEW COLLIMATOR.


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Job Card DR 008 2 of 6COMPRESSION MOTOR AND BELTS


3–26

ILLUSTRATION 1COMPRESSION ARM WITH COMPRESSION MOTOR MOUNTING DETAIL

MAGNIFICATION RIGHT SUPPORT PLATE

COMPRESSION MOTOR

P1

S2S1

S3 to S6

SLIDE BAR PROTRUSION

SLIDE BAR


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3–27

ILLUSTRATION 2DETAIL OF PULLEY AND MOTOR MOUNTING, SHOWING COMPONENT ASSEMBLY SEQUENCE

RIGHT

LEFT

S7

S8 S9

S10

LARGE BELT PULLEY

SMALL BELT PULLEY

COMPRESSION

ENCODER WHEEL

MOTOR

3. Remove the crank pulley bearing support plate (two 4 mm Allen screws, S1 and S2).

4. Remove the four screws, S3 to S6 (4 mm Allen wrench), from the motor support plate.

Check that the slide bar does not protrude out of the front of the pulley asthis prevents the mounting of the small belt. If necessary, push the slidebar slightly downwards.

5. Carefully extract the motor and the small toothed belt

Take care not to damage the encoding wheel

6. Remove the two left–hand motor mounting screws (S8 and S9 – see above), on the motor support plate.

7. Remove the optointerrupter support board, thus releasing the toothed belt.

8. Remove the other two screws (S7 and S10, on the right), followed by the encoding wheel and the

pulley, if the motor is being changed.

CAUTION

CAUTION


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3–28

5.2 Installation of compression motor and small belt (see Illustrations 1 and 2)

To install the compression motor and small belt, carry out the above operations, in the reverse sequence(8 thru 1).

Note: Small toothed belt is tensioned by moving motor.

5.3 Adjustment

The four mounting screws (Illustration 2, items S7 to S10) enable the toothed belt tension to be

adjusted. Take care to avoid excessive belt tension.

5.4 Removal of large compression belt (see Illustrations 1 and 2)

THE COMPRESSION MOTOR AND SMALL BELT MUST BEREMOVED BEFORE THE PROCEDURE DESCRIBED BELOW CANBE EXECUTED (SEE PARA. 5.1).

1. Release the lock, behind the arm, to offset the compression arm in relation to the tube housing arm.

2. Switch ON the DMR electrical power.

3. Set compression arm horizontal (the most convenient position).4. Switch OFF the DMR electrical power.

5. Remove the magnification right support plate (accessible behind arm – two 5 mm Allen screws).

6. Set paddle support opposite hole left free by removal of magnification right support plate.

7. Slacken the two screws on the paddle support, to release the belt joining piece.

Note: In the case of routine maintenance; if the belt is being replaced; then the old belt can simply be cut.8. On the end of the belt, unscrew the small tensioner screw (7 mm flat wrench – see Illustration 3), to

release the spring.

Note: It is not necessary to remove the spring. The tensioner screw need only be unscrewed a few turns.9. Remove the end piece from the adjustment end of the belt (spring end) (2 small slot–head screws).

10. Remove the spring housing/belt joining piece (two 3 mm Allen screws).

Check that the slide bar does not protrude out of the front of the pulley asthis prevents the mounting of the small belt. If necessary, push the slidebar slightly downwards.

11. After the belt has been removed or cut, remove the two pulleys and spindle.

WARNING

CAUTION


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3–29

ILLUSTRATION 3BELT JOINING PIECE, SHOWING BELT ENGAGEMENT AND TENSIONER SCREW

BELT TENSIONER SCREWCOIL SPRING

FIRST FOUR TEETH, ON EACH END, ENGAGED INFIRST FOUR NOTCHES IN BELT JOINING PIECE

5.5 Installation of large compression belt (see Illustrations 1, 2 and 3)

1. Install new belt.

Note: Belt is already cut to exact length (1215 mm).2. While leaving some slack on the belt, install the belt joining piece.

3. Engage the first four teeth, on each end of the belt, in the corresponding four notches in the belt joiningpiece (see Illustration 3).

Take care not to twist the belt

4. Engage belt on small pulley.

Note: This operation is facilitated by the insertion of a packing piece on the end of the spring, to compress

the spring and slacken the belt – Remove packing piece after belt is engaged on pulley.5. Tension (compress) the spring (7 mm flat wrench), using a little locking compound (Loctite or similar)

on the tensioner threads.

6. Reinstall the bearings and pulleys.

Note: To do this it will be necessary to pull on the belt.7. Recentralize the paddle and mount the belt central piece on the paddle support.

8. Reinstall the motor support plate and motor (4 screws).

9. Reinstall small belt and cable support plate.

CAUTION


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3–30

10. Reconnect small coding wheel connector.

11. Tension small toothed belt by moving motor.

12. Tighten all four screws (motor mount).

13. Reconnect motor connector.

14. Reinstall the magnification plate support.

Note: See Functional check, below.15. Install compression paddle.

16. Reinstall covers (refer to s.m. IST 032) and the small cable protector on motor flange.

Cables must pass outside protector plate, and plate must not be in contactwith pulley.

5.6 Functional check

The functional check should be carried out both before and after thereinstallation of the compression paddle and arm covers.

1. Switch ON the DMR electrical power.

2. Check that the belt runs correctly over

Documents

Manual Service DMR Sonographe Ge