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Vatech A9

Vatech A9
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Vatech A9 (PHT-30CSS)
Technical manual
VDH-TeM-098
2 / 214
COPYRIGHT© 2020 VATECH.
ALL RIGHTS RESERVED
Contents
General Information............................................................................................................ 1
Before you begin ................................................................................................................ 8
Conventions in this Guide ......................................................................................................................... 8
Safety Information ...................................................................................................................................... 9
Equipment Safety Instructions ............................................................................................................... 10
Radioactive Warning ................................................................................................................................. 11
Pre-check points for Service Technician ............................................................................................... 12
Chapter 1. Hardware Part Service Guide ........................................................................ 13
1. vatech A9(PHT-30CSS) System Block Diagram ........................................................................... 13
2. vatech A9(PHT-30CSS) Board Configuration ............................................................................... 14
2.1. Vertical Frame Part .................................................................................................................... 14
2.2. Handle Unit ................................................................................................................................ 19
2.3. Rotating Unit Part ...................................................................................................................... 21
2.4. CEPH Unit ................................................................................................................................. 25
3. vatech A9(PHT-30CSS) Connection Diagram ............................................................................... 27
3.1. Power and Ground Connection Diagram .................................................................................. 27
3.2. Main MCU and SENSOR Connection Diagram ........................................................................ 30
3.3. Sensor Part Connection Diagram .............................................................................................. 32
3.4. CEPH SENSOR Part Connection Diagram ............................................................................ 32
3.5. Connection Diagram (Total assembly) ...................................................................................... 33
4. Disassembly of vatech A9(PHT-30CSS) Covers .......................................................................... 34
4.1. Vertical Frame Part .................................................................................................................... 34
4.2. Rotating Unit Part ...................................................................................................................... 35
4.3. Handle Frame Unit Part ............................................................................................................. 42
4.4. CEPH Unit Part ....................................................................................................................... 47
Chapter 2. CT Image Optimization .................................................................................. 51
1. Geometry information ..................................................................................................................... 51
2. Equipment default values .............................................................................................................. 52
2.1. Check the equipment horizontal level ....................................................................................... 52
2.2. Check the sensor horizontal level ............................................................................................. 53
2.3. Equipment Start Position Setting ............................................................................................... 53
2.4. Bite location (CT mode) ............................................................................................................. 54
3. CT Sensor Calibration .................................................................................................................... 55
3.1. CT Sensor Calibration Standard ............................................................................................... 55
3.2. Before CT sensor calibration ..................................................................................................... 56
3.3. CT sensor setting ...................................................................................................................... 56
3.4. CT sensor: Dark calibration ....................................................................................................... 58
3.5. CT sensor: Bright calibration ..................................................................................................... 59

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