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 fi rmware, core and display graphics ..................................... 91
6.1 Firmware zip fi le .......................................................................................... 91
6.2 Upgrading the unit fi rmware ........................................................................ 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