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Chapter 9 Page no. 1026

JC-TSG-A-010.fm

GE Healthcare Senographe DS

Revision 1 Service Information and Procedures Class A 2385072-16-8EN

Job Card TSG A010 - Troubleshooting Bad Pixel Calibration Failure

3-2-3-3 Collimator Adjustment

When repositioning the collimator, make sure that you rotate the arm to +180°. For more information on

the screw positions that fix the collimator to the tube head frame, see Job Card D/R A280 - Collimator

Set on page 1369.

Notice:

Make sure to strictly perform all calibration required for correction as stated by section 4, Post-Cor-

rective Actions on page 1026.

4 POST-CORRECTIVE ACTIONS

4-1 Calibration to be performed after bad pixel calibration

4-2 Calibration to be performed after a kV scale factor calibration

Calibration/Test Job Card

Bad Pixel Calibration Job Card CAL A041 - Bad Pixel Calibration on page 1693

Gain calibration Job Card CAL A043 - Detector Gain Calibration on page 1697

Flat field tests Job Card ELE A032 – IQ Tools Flat Field Test on page 699

Conversion Factor Job Card CAL A045 - Conversion Factor Measurement on page 1701

Half Value Layer Job Card CAL A046 - Half-Value Layer Measurement on page 1703

AOP Calibration Job Card CAL A051 - AOP Calibration on page 1723

mAs non linearity Job Card CAL A053 - mAs Non-linearity Calibration on page 1725

AOP/SNR Check Job Card ELE A038 - AOP Mode and SNR Check on page 707

If AOP/SNR test is not OK, repeat all calibrations from AOP Calibration

Calibration/Test Job Card

kV Scale Factor Calibration Job Card CAL A011 - Calibration of kV Scale Factor on page 1667

X-Ray Tube Heater current Calibra-

tion

Job Card CAL A012 - X-Ray Tube Heater Current on page 1673