SEGMENT 3

TM 11-6625-3081-23 7-7. AUTOMATIC FOCUS CONTROL ASSEMBLY 2A1A2A12 7 -7 INPUT CODE: DCFOCUS (cont) e. SEGMENT 3 1. VDT DISPLAY PERFORM THE FOLLOWING REPLACE ACTIONS IN THE ORDER LISTED. (REFERENCE TM 11-6625-3081-23 FOR REPLACEMENT PROCEDURES.) REF. DES. PART NO. NAME 1. 2A2A7A6A4 13082738 TEMP. MONITOR CCA 2. 2A2A13XX AC4720 DIFF. INPUT CCA (J4) 3. 2A2A13 13081746 A/D CONVERTER 4. 2A1A2XX 13081588-49 CIRCUIT & HEATSINK (W55 SENSOR) 5. 2A1 13082800-59 DAYSIDE TEST BENCH 2. CORRECTIVE ACTION - SEGMENT 3 (a) (b) (c) (d) Remove Temperature Monitor CCA 2A2A7A6A4. Check contacts of mating connectors and repair if required. Install replacement 2A2A7A6A4 and perform DCFOCUS test. If DCFOCUS test passes, no further action required. If this segment displayed again, proceed to (b). If another segment displayed, proceed to that segment and continue troubleshooting. Remove Differential Input CCA 2A2A13XX. Check contacts of mating connectors and repair if required. Install replacement 2A2A13XX and perform DCFOCUS test. If DCFOCUS test passes, no further action required. If this segment displayed again, proceed to (c). If another segment displayed, proceed to that segment and continue troubleshooting. Remove A/D Converter 2A2A13. Check contacts of mating connectors and repair if required. Install replacement 2A2A13 and perform DCFOCUS test. If DCFOCUS test passes, no further action required. If this segment displayed again, proceed to (d). If another segment displayed, proceed to that segment and continue troubleshooting. Remove Circuit & Heatsink (W55 Sensor) 2A1A2XX. Check contacts of mating connectors and repair if required. Install replacement 2A1A2XX and perform DCFOCUS test. If DCFOCUS test passes, no further action required. If this segment displayed again, proceed to (e). If another segment displayed, proceed to that segment and continue troubleshooting. 7-38