Soredex Cranex Novus e User manual

Service Manual

for the

CRANEX®Novus e

Dental X-ray Unit

208710 rev. 1 (2013-01)

CRANEX®Novus e Contents

Service manual III

Service Manual for the

CRANEX®Novus e

Dental X-ray Unit

Medical Device Directive

93/42/EEC

Number 208710 rev. 1 (2013-01)

Original approved English language version

Manufactured by SOREDEX, PaloDEx Group Oy

Nahkelantie 160,Tuusula

FI-04300 Tuusula

Finland

Tel. +358 45 7582 2000

Fax. + 358 9 701 5261

IV Service manual

Contents CRANEX®Novus e

SOREDEX®/ CRANEX®/ DIGORA®/ SCANORA®are registered trade-

marks of SOREDEX.

SOREDEX endeavours to produce product documentation that is ac-

curate and up to date. However, our policy of continual product devel-

opment may result in changes to products that are not reﬂected in the

product documentation. Therefore, this document should not be regard-

ed as an infallible guide to current product speciﬁcations.

SOREDEX maintains the right to make changes and alterations without

prior notice.

CRANEX®Novus e Contents

Service manual V

Contents

1. General Information .......................................................................................... 1

1.1 Introduction ................................................................................................... 1

1.2 Associated documentation ............................................................................ 1

1.3 Service precautions and warnings................................................................ 1

Servicing precautions.................................................................................... 1

Warning - Radiation Safety........................................................................... 2

Warning - Mechanical safety......................................................................... 2

Warning - Electrical Safety............................................................................ 2

Caution - electrostatic discharge................................................................... 3

Warning - Explosion hazard.......................................................................... 4

Warning - Cleaning the unit........................................................................... 4

1.4 Unauthorized Modiﬁcations........................................................................... 4

1.5 Disclaimer ..................................................................................................... 4

1.6 Yearly maintenance....................................................................................... 5

mA test.......................................................................................................... 5

kV test........................................................................................................... 6

Beam alignment test .................................................................................... 6

Ground test .................................................................................................. 6

Motor movements......................................................................................... 7

Position detectors ......................................................................................... 7

Patient Positioning Lasers ............................................................................ 7

Mains power supply cable............................................................................. 7

Tubehead...................................................................................................... 8

Covers and Labels........................................................................................ 8

Fire risk......................................................................................................... 8

1.7 Disposal ........................................................................................................ 9

VI Service manual

Contents CRANEX®Novus e

2. Unit description............................................................................................... 10

2.1 The CRANEX®Novus e .............................................................................. 10

2.2 The main parts and assemblies ..................................................................11

2.3 Unit dimensions........................................................................................... 14

2.4 Mechanical description................................................................................ 15

2.5 Electrical description................................................................................... 17

Circuit boards.............................................................................................. 17

Power supply .............................................................................................. 17

Main fuses .................................................................................................. 17

Unit control ................................................................................................. 18

Motors and motor control............................................................................ 18

Exposure logic ............................................................................................ 19

Position control ........................................................................................... 20

A overview of the Imaging Chain ................................................................ 20

2.6 Wiring diagrams - overview......................................................................... 22

2.7 Block diagram .............................................................................................25

2.8 Fuse diagram.............................................................................................. 26

3. Circuit Boards.................................................................................................. 27

3.1 L900, Display adapter................................................................................. 27

3.2 L1200 CPU Board....................................................................................... 29

3.3 L1500, CCD Power Supply......................................................................... 32

3.4 L1600, Z-Motor Driver................................................................................. 36

3.5 L1700 Connector Board.............................................................................. 40

3.6 L1800, Generator Board ............................................................................. 43

3.7 P1910, PFC Board...................................................................................... 47

3.8 L1300 Interface Board ................................................................................ 51

3.9 L2100 Rotation Position Sensor Board ...................................................... 53

3.10 R5100, 3-Phase Microstepper Driver........................................................ 55

3.11 CCD Sensor / Filter board......................................................................... 57

CRANEX®Novus e Contents

Service manual VII

4. Troubleshooting .............................................................................................. 61

4.1 Initial checks................................................................................................ 61

Restarting the unit....................................................................................... 61

Error Codes................................................................................................. 61

Checking circuit boards............................................................................... 61

Checking cables and connectors................................................................ 62

Power supply problems............................................................................... 62

4.2 Problems during start up............................................................................. 63

Nothing happens when the unit is switched on........................................... 63

Error E 3 (CFG Data lost) ........................................................................... 65

Error E 5 (Line voltage out of limits)............................................................ 65

Error E 8 (File system failure)..................................................................... 66

Error E16 (Z lift not allowed due to duty cycle)........................................... 66

Error E 18 (Display not connected)............................................................. 66

Error E 19 (Exposure switch stuck down)................................................... 67

Error E20 (PCF: POWERGOOD signal is down) ....................................... 67

Error E22 (Button stuck) ............................................................................. 67

4.3 Problems while preparing the unit for an exposure..................................... 68

Image of emergency button appears on main display................................ 68

The side control panel Return key does not work....................................... 68

Error E 7 (Opto or r-motor failed during r-movement)................................. 68

Rotating unit stop rotating, no error code.................................................... 69

Patient positioning light(s) do not come on................................................. 69

Up/down (Z-motor) keys do not work.......................................................... 70

4.4 Problems during exposure.......................................................................... 72

Nothing happens when the exposure button is pressed............................. 72

Error code H1 (Exposure interupted).......................................................... 72

Error codes E0, E1 and E2......................................................................... 73

Error E 10 (CCD initialization/conﬁguration failure) .................................... 75

Error E 11 (CCD power failure)................................................................... 75

Error E 12 (CCD line failure)....................................................................... 76

Error E 13 (CCD conﬁguration checksum failure)....................................... 76

VIII Service manual

Contents CRANEX®Novus e

4.5 Problems after exposure............................................................................. 77

Error E 4 (Tubehead too hot)...................................................................... 77

Vertical white stripes on the image .............................................................77

Horizontal white stripes on the image......................................................... 77

4.6 Bad quality images...................................................................................... 78

Incorrect patient positioning........................................................................ 78

A badly aligned unit..................................................................................... 78

The CCD sensor is not calibrated............................................................... 78

5. S2terminal and service commands ............................................................... 79

5.1 Using the S2terminal................................................................................... 79

5.2 The Service commands...............................................................................82

6. Updating unit ﬁrmware, core and display graphics..................................... 91

6.1 Firmware zip ﬁle.......................................................................................... 91

6.2 Upgrading the unit ﬁrmware........................................................................ 91

7. Replacing parts................................................................................................ 92

7.1 Removing covers ........................................................................................92

7.2 Replacing the tubehead.............................................................................. 93

Tools required ............................................................................................ 93

Replacement parts...................................................................................... 93

Replacing the tubehead.............................................................................. 93

Calibrating the tube head and checking the alignment............................... 95

7.3 Replacing the CCD sensor.......................................................................... 96

7.4 Replacing the collimator.............................................................................. 96

7.5 Replacing circuit boards.............................................................................. 96

L900 Display adaptor - additional instructions............................................ 96

L1800 Generator board - additional instructions......................................... 97

L1700 Connector board - additional instructions ........................................ 97

L1200 CPU board - additional instructions ................................................. 97

L1500 Power Supply board - additional instructions................................... 97

L1910 PFC board - additional instructions.................................................. 97

7.6 Replacing the z-motor................................................................................. 98

CRANEX®Novus e Contents

Service manual IX

8. Aligning the unit ............................................................................................ 104

8.1 Removing the covers ................................................................................104

8.2 Checking and Aligning the CCD Sensor ................................................... 104

8.3 Checking and adjusting the position of the collimator............................... 106

8.4 Checking and adjusting the Chin Support.................................................109

8.5 Checking and adjusting the focal trough....................................................111

8.6 Recheck the alignment...............................................................................113

8.7 Calibrating the CCD sensor .......................................................................113

CRANEX®Novus e 1. General information

Service manual 1

1. General Information

1.1 Introduction This manual describes how to service the CRANEX®

Novus e Digital Panoramic X-ray Unit (hereinafter re-

ferred to as the unit).

1.2 Associated documentation

The unit user's manual.

The unit installation manual.

The unit spare-parts manual.

1.3 Service precautions and warnings

Servicing precautions

Only service personnel trained and approved by the

manufacturer of the unit are allowed to service the unit.

Before attempting to service the unit make sure that you

know how to operate it. Read the unit user's manual.

Read and familiarize yourself with the warnings and

precautions listed in the unit user's manual.

Only use original SOREDEX®spare parts when repair-

ing the unit or replacing parts.

The unit can operate using voltages:

100 to 120 VAC or 220 to 240 VAC.

The only difference between the two versions is the

supplied power cable.

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