TM 1-1520-238-T-7 Change 7 10–115 10–23. BOOST PMP ON INDICATOR – IS NOT LIGHTED WITH BOOST SWITCH SET TO ON (cont) 10–23 9. Check for 28 VDC at (A76)P1-31. Is voltage present? YES Repair open wire between: (A402)J1-31 and TB2-29-R, (A402)J31-A1 and TB2-29-N, Go to paragraph 10–17. NO Refer to TM 1-1520-238-T-6 to troubleshoot circuit protection system (dc essential bus 2 – pilot station). 10. Check for 28 VDC at (A131)J2-B5. Is voltage present? YES Go to step 11. NO Go to step 12. 11. Check for 28 VDC at (A402)J5-A20. Is voltage present? YES Repair open wire between: P442-A20 and P242-A. Go to paragraph 10–17. NO Repair open wire between: P179-B5 and P429-A19, (A402)J23-A19 and (A402)TB2-13-D, (A402)TB2-13-C and (A402)J5-A20. Go to paragraph 10–17. 12. Check for 28 VDC at (A131)J1-B5. Is voltage present? YES Replace pilot FUEL panel (TM 1-1520-238-23). NO Go to step 13. 13. Check for 28 VDC at P191-A1. Is voltage present? YES Go to step 14. NO Go to step 15. 14. Check for open between (A179): P191-A9 and P174-B5. Does open exist? YES Repair open wire. NO Replace CPG FUEL panel (TM 1-1520-238-23). 15. Check for 28 VDC at (A402)J23-B14. Is voltage present? YES Repair open wire between P429-B14 and P191-A1. NO Go to step 16. 16. Check for 28 VDC at P1-32. Is voltage present? YES Repair open wire between (A402): J1-32 and TB3-4-L, J23-B14 and TB3-4-K (ADA), TB3-4-K and TB2-17-K (ADB), J23-B14 and TB2-17-K (ADB). Go to paragraph 10–17. NO Refer to TM 1-1520-238-T-6 to troubleshoot circuit protection system (dc emergency bus – pilot station). END OF TASK