SEGMENT 2

TM 11-6625-3081-23 7-5. PROGRAMMABLE POWER SUPPLY ASSEMBLY 1A3 7 - 5 INPUT CODE: PPSST (cont) d. SEGMENT 2 1. VDT DISPLAY POWER SUPPLY # FAILED PROGRAMMED VOLTAGE DRIVE TEST. PERFORM THE FOLLOWING REPLACE ACTIONS IN THE ORDER LISTED. (REFERENCE TM 11-6625-3081-23 FOR REPLACEMENT PROCEDURES.) REF. DS. PART NO. NAME 1. 1A2A# SN488-8 CONTROLLER CCA 2. 1A3PS# ATE36-3 (or PROGRAMMABLE POWER SUPPLY ATE75-1.5) 3. 1A2 13082835 POWER SUPPLY CONTROLLER 4. 2A2A11XX HP69433 RELAY READ BACK CCA (SLOT 409) 5. 2A2A4A1 13083063 RELAY ASSEMBLY NOTE The VDT display will complete the reference designation where the symbol # is shown above. 2. CORRECTIVE ACTION - SEGMENT 2 NOTE In (a) and (b), a # symbol is used in the reference designation. The VDT display will indicate the proper reference designation of the components to be replaced. (a) Remove Controller CCA 1A2A#. Check contacts of mating connectors and repair if required. Install replacement 1A2A# and perform PPSST test. If PPSST test passes, no further action required. If this segment displayed again, proceed to (b). If this segment is displayed again with a different set of reference designators, return to (a). If another segment displayed, proceed to that segment and continue troubleshooting. (b) Remove Programmable Power Supply 1A3PS#. Check contacts of mating connectors and repair if required. Install replacement 1A3PS# and perform PPSST test. If PPSST test passes, no further action required. If this segment displayed again, proceed to (c). If this segment is displayed again with a different set of reference designators, return to (a). If another segment displayed, proceed to that segment and continue troubleshooting. 7-28