Villa Rotograph EVO, Руководство по обслуживанию

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SERVICE MANUAL
Contents
Rotograph EVO (Rev. 1) iv
8.3.4. Password 118: Axis alignment menu .............................................. 8-35
8.3.4.1. Rotation zero .................................................................... 8-37
8.3.4.2. Y Axis zero........................................................................ 8-38
8.3.4.3. Cassette zero .................................................................... 8-39
8.3.4.4. Primary collimator setup ................................................... 8-40
8.3.5. Password 124: CEPH settings......................................................... 8-42
8.3.5.1. Enable Ceph ..................................................................... 8-43
8.3.5.2. Y Offset............................................................................. 8-44
8.3.5.3. Rotation offset .................................................................. 8-45
8.3.5.4. Primary collimator setup ................................................... 8-45
8.3.5.5. Disk collimator type .......................................................... 8-46
8.3.5.6. Default format .................................................................. 8-47
8.3.6. Password 112: Troubleshooting ...................................................... 8-48
8.3.6.1. Test column...................................................................... 8-49
8.3.6.2. Test input ports ................................................................ 8-50
8.3.6.3. RX emission...................................................................... 8-52
8.3.6.4. Pre-heating time ............................................................... 8-53
8.3.6.5. Preheating level................................................................. 8-54
8.3.7. System / Burn-in........................................................................... 8-55
8.3.8. Show configuration ........................................................................ 8-55
8.4. Search and correction of possible defects in dental radiographies ...... 8-56
8.4.1. Defects due to incorrect position of the patient ............................... 8-56
8.4.2. Defects due to incorrect radiological data input and darkroom ........ 8-57
8.4.3. Defects on the film due to the unit.................................................. 8-58
8.4.3.1. Panoramic film too light .................................................... 8-58
8.4.3.2. Film with vertical stripes ................................................... 8-60
8.4.3.3. Film with not irradiated areas ........................................... 8-60
8.4.3.4. Film with missing highlight of the Soft Tissues .................. 8-60
8.5. Analysis of the problems on the panoramic examinations .................. 8-61
8.5.1. Proper positioning of the patient..................................................... 8-62
8.5.2. Error due to a bad patient's positioning .......................................... 8-64
8.5.3. Images with artefacts ..................................................................... 8-71
8.5.4. Incorrect film contrast and density ................................................. 8-75
9. SCHEMATICS AND DRAWINGS 9-1
10. SPARE PARTS 10-1
11. APPENDIX A-1
11.1. Appendix A: Setup parameters table ....................................................A-1
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MEDICALI S.p.a.
This manual in English is the original version.