Replacement
 
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9.  Install the PCB box and insert the collimator control board, 
mainframe control board and Filament Drive Board. Install 
the PCB box cover and C-Arm console cover. 
10. Power on the system and take exposure. Verify that the 
system works normally. 
 
 
kV control board (P/N: 5085610) 
1.  Remove the rear cover of the C-Arm 
console. 
2.  Unplug all cables connected to kV control 
board (KJ1, KJ2, KJ3, KJ4, KJ5, KJ6, KJ7). 
3.  Release the four screws that secured the 
board. Replace the new kV control board.  
4.  Connect all cables. 
5.  Refer to 7.3.2 calibration matrix and 
chapter 4 to do calibration and checks. 
6.  After calibration and check, shut down 
system and reinstall the Mainframe back 
cover. 
 
 
IGBT inverter module (P/N: 5085408) 
1.  Turn off the system power.