9941 - Measure discriminator voltages Measure discriminator voltages Yes Go to 9940 - 9937 - Measure gamma high voltage - Decision, Notes: 9938 No Go to 9905 - 9898 - Reset ULD/LLD - Decision, Notes: 9899 Note 9041 - Using a digital multimeter in DC mode,verify 15 VDC at TB1 pins 1, 2, and 3. 9942 - measure the discriminator voltages on the SCA-774 boards at: 9943 - Are the ULD/LLD voltages correct?
