GE_OEC_9600_C-Arms

20 Image System
WARNING... Image intensifier tubes may implode if struck or subjected to severe
mechanical shock. Minimize the risk of injury from flying glass by wearing
protective clothing and safety goggles when servicing this component.
Voltages used inside the II are capable of causing serious injury or death
from electrical shock. Use appropriate precautions.
CAUTION: Always wear a properly grounded static protection wristband when working
with the CCD camera.
1. Verify that the Workstation keyswitch is in the OFF position. Refer to Figure 12.
2. Remove the 2 screws securing the camera cover (A).
3. Remove the Camera and Optics assembly (B). See CCD camera information in
this section.
4. Remove the Image Function PCB and mounting plate (can be removed as one
assembly).
5. Disconnect the wiring between the Image Intensifier and the Image Intensifier
Power Supply as indicated in Figure 13 and Table 6.
6. Disconnect the D style connector (+24 VDC, DC/Com, MEDFLD, SMALLFLD).
7. Remove the 6 hex bolts (C) securing the Image Intensifier to the C-arm weldment
and remove the Image Intensifier from the C-arm.
8. Remove the hardware (D) (5 places) securing the power supply to the C-Arm
weldment.
NOTE: When replacing the Image Intensifier assembly it may be necessary to recalibrate
the light level at the CCD by calibrating the Camera Iris. Refer to
the Camera Iris Calibration procedure in the Image System Calibration
Section.
COLOR DESCRIPTION CONNECTOR
E Blue Active Getter "Fast On"
Cathode
PC Red Tube Photo Cathode "Fast On"
GND Green/Yello Ground
Fork Lug
w
G1 Green Electrode Twist On
G2 Black Electrode Twist On
G3 Black Electrode Twist On
G4 Black Electrode Twist On
A White Cable Anode Twist On
Table 6 - Image Intensifier Power Supply Wiring