SOREDEX Cranex Excel, Excel Ceph, Excel D, BaseX, BaseX D Dental X-ray, Cranex C Cephalometric X-ray Service Manual

SOREDEX Cranex Excel, Excel Ceph, Excel D, BaseX, BaseX D Dental X-ray, Cranex C Cephalometric X-ray Service Manual

Cranex Excel, Cranex Excel Ceph, Cranex Excel D, Cranex BaseX and Cranex BaseX D. This manual describes how to service the Cranex Excel range of dental panoramic x-ray units. The range includes four cassette versions and two digital versions. The cassette versions are the: - Excel - Excel Ceph - BaseX - Cranex C (cephalometric unit only) These use conventional film and/or Soredex imaging plates. The digital versions are the: - Excel D - BaseX D The digital versions use CCD sensors. Two versions of the sensor are available, DM and DS versions. Functional and operational differences between the different versions are given where appropriate. IMPORTANT NOTE The information in this manual also applies to earlier cassette versions of the Cranex, the Cranex 3+ Ceph, 3+, 2.5+ and Cranex C. Differences between these earlier versions and the latest Excel and BaseX versions will be described where appropriate.

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Service Manual 8200909 i
Cranex Panoramic X-ray Series Contents
Service Manual
for the
Cranex Dental Panoramic X-ray Series
(Excel, Excel Ceph, Excel D,
BaseX and BaseX D)
(This manual can also be used to service the
Cranex 3+ Ceph, 3+, 2.5+ and C)
Medical Device Directive
93/42/EEC
October 2003
Document number 8200909 ver 0310
Original approved English language version
Manufactured by SOREDEX
P.O. BOX 250
FIN-00031 SOREDEX, FINLAND
Tel. +358 10 394 820
Fax. + 358 9 701 5261
ii Service Manual 8200909
Contents Cranex Panoramic X-ray Series
Service Manual 8200909 iii
Cranex Panoramic X-ray Series Contents
Contents
1 Introduction ............................................................................................................... 1 - 1
1.1 Scope of this manual ................................................................................ 1 - 1
1.2 Associated documentation ....................................................................... 1 - 2
1.3 Servicing warnings and precautions ......................................................... 1 - 2
General precautions .............................................................................. 1 - 2
Radiation Safety .................................................................................... 1 - 2
Mechanical safety .................................................................................. 1 - 3
Electrical Safety .................................................................................... 1 - 3
Electrostatic discharge .......................................................................... 1 - 3
Explosion Hazard .................................................................................. 1 - 4
Operating warnings and precautions...................................................... 1 - 4
Unauthorized Modifications ................................................................... 1 - 5
Disposal................................................................................................ 1 - 6
Disclaimer ............................................................................................. 1 - 6
2 Unit description ........................................................................................................ 2 - 1
2.1 Versions .................................................................................................. 2 - 1
2.2 Main parts - Excel, Excel D, BaseX and BaseX D .................................... 2 - 2
2.3 Main parts - Excel Ceph ........................................................................... 2 - 4
2.4 Mechanical description and operation ...................................................... 2 - 5
Column.................................................................................................. 2 - 5
Z-carriage ............................................................................................. 2 - 5
Rotating unit (not Cranex C) ................................................................... 2 - 6
2.5 Circuit board location ............................................................................... 2 - 7
2.6 Which circuit board which version ............................................................. 2 - 9
2.7 Electrical operation ................................................................................ 2 - 10
General description ............................................................................. 2 - 10
The Operating Principle of the Generator ............................................. 2 - 10
High Voltage Section ........................................................................... 2 - 10
X-ray Tube Current ...............................................................................2 - 11
Automatic kV selection ......................................................................... 2 - 11
Exposure times ................................................................................... 2 - 12
iv Service Manual 8200909
Contents Cranex Panoramic X-ray Series
3 Main wiring diagrams ................................................................................................ 3 - 1
3.1 Sheet 1 - cassette version ........................................................................ 3 - 1
3.2 Sheet 1 - DM version ............................................................................... 3 - 2
3.3 Sheet 1 - DS fixed version ........................................................................ 3 - 3
3.4 Sheet 1 - DS cassette version .................................................................. 3 - 4
3.5 Sheet 2 - all versions ................................................................................ 3 - 5
4 Microswitches ........................................................................................................... 4 - 1
4.1 Cassette carriage (cassette carriage versions only) ................................. 4 - 1
4.2 Rotating unit microswitches ...................................................................... 4 - 2
5 Capacitor Board ........................................................................................................ 3 - 1
6 Mains Power Unit (MPU) .......................................................................................... 6 - 1
6.1 General description .................................................................................. 6 - 1
6.2 High Voltage Board .................................................................................. 6 - 1
6.3 Low Voltage Board .................................................................................. 6 - 1
6.4 Connection box at rear of Z-Carriage ....................................................... 6 - 2
6.5 Power Line Connection ............................................................................ 6 - 3
6.6 Mains Power Unit Connectors .................................................................. 6 - 4
6.7 MPU schematic diagram .......................................................................... 6 - 6
6.8 MPU Component Layout .......................................................................... 6 - 7
6.9 Low voltage board - schematic diagram ................................................... 6 - 8
6.10 Low voltage board - component layout ................................................... 6 - 9
6.11 High voltage board - component layout ................................................. 6 - 10
7 Pulse Logic Unit (PLU) ............................................................................................. 7 - 1
7.1 Exposure Logic ........................................................................................ 7 - 1
7.2 Return Function ........................................................................................ 7 - 4
7.3 Technique Selection ................................................................................. 7 - 4
7.4 Filament Control Circuitry ......................................................................... 7 - 4
7.5 Power Inverter Control .............................................................................. 7 - 5
7.6 High Voltage Control Circuitry .................................................................. 7 - 6
7.7 PSU Protection Circuit ............................................................................. 7 - 7
7.8 Motor Drive .............................................................................................. 7 - 8
7.9 Pulse Logic Unit connectors ..................................................................... 7 - 9
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Key Features

  • Service Manual
  • Cranex Excel range
  • dental panoramic x-ray units
  • cassette versions
  • digital versions
  • CCD sensors
  • DM and DS versions
  • earlier cassette versions
  • Cranex 3+ Ceph, 3+, 2.5+ and Cranex C

Related manuals

Frequently Answers and Questions

What is the scope of this manual?
This manual describes how to service the Cranex Excel range of dental panoramic x-ray units. It includes four cassette versions and two digital versions. The cassette versions are Excel, Excel Ceph, BaseX and Cranex C (cephalometric unit only). The digital versions are Excel D and BaseX D. The digital versions use CCD sensors. Two versions of the sensor are available, DM and DS versions.
What are the differences between the different Cranex Excel versions?
Functional and operational differences between the different versions are given where appropriate.
Does this manual apply to earlier versions of the Cranex?
Yes, the information in this manual also applies to earlier cassette versions of the Cranex, the Cranex 3+ Ceph, 3+, 2.5+ and Cranex C. Differences between these earlier versions and the latest Excel and BaseX versions will be described where appropriate.
What is the difference between the cassette and digital versions?
The cassette versions use conventional film and/or Soredex imaging plates. The digital versions use CCD sensors.
What are the two versions of the CCD sensors?
The two versions of the sensor are DM and DS versions.

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