Hologic QDR 4500 Technical Manual page 9

Fan beam x-ray bone densitometer
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TABLE OF FIGURES
4500 ................................................................................................................1-2
Figure 1-2. Q Scan Plot .................................................................................................................1-3
Figure 1-3. QDR 4500 Block Diagram (Operator's Console) .......................................................1-4
Figure 1-4. QDR 4500 Block Diagram (Scanner Unit) ................................................................1-5
Figure 1-5. QDR 4500 Block Diagram (C-Arm Subsystem) ........................................................1-6
Figure 2-2. Distribution Board High Level Interconnection Diagram..........................................2-4
Figure 2-5. Control Panel Controller Interconnection Diagram ...............................................2-12
Figure 2-10. Low Voltage Power Supply Board Interconnections ............................................2-22
Figure 2-15. Integrator/Multiplexor Board/Solid State Detector Boards Interconnection Diagram2-27
Diagram..................................................................................................................2-29
Figure 2-17. C-Arm Interface Board/Analog/Digital Converter Board Interconnection Diagram2-31
Figure 2-18. Power Module Block Diagram..............................................................................2-33
Figure 3-1. Room Layout (4500A) ...............................................................................................3-2
Figure 3-2. System Dimensions (4500SL) ....................................................................................3-3
Figure 3-3. System Dimensions (4500W).....................................................................................3-3
Figure 3-4. System Dimensions (4500C) ......................................................................................3-4
Figure 3-5. Crated Unit (QDR 4500A and QDR 4500SL) ...........................................................3-5
Figure 3-6. Uncrated Unit (QDR 4500A and QDR 4500 SL) ......................................................3-7
Figure 3-7. Table X Drive.............................................................................................................3-8
Figure 3-8. Tipping Unit ...............................................................................................................3-9
Figure 3-9. Moving and Tilting the Unit Down..........................................................................3-11
Figure 3-10. Auxiliary Horizontal Caster Installation ................................................................3-12
Figure 3-11. Shipping Bracket Locations (QDR 4500A and SL) ...............................................3-13
Figure 3-12. Shipping Bracket Locations (QDR 4500A and SL) ...............................................3-14
Figure 3-13. Shipping Bracket Locations (QDR 4500W and C) ................................................3-14
Figure 3-14. Shipping Bracket Location (QDR 4500W and C)..................................................3-15
Figure 3-15. Repositioning the Belt Tensioning Mechanism .....................................................3-16
Figure 3-16. Isolation Transformer Taps ....................................................................................3-17
Figure 3-17. Peak Potential Mode 4............................................................................................3-20
Figure 3-18. Peak Potential Mode 3............................................................................................3-20
Figure 3-19. Tube Current Mode 1 .............................................................................................3-22
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