TM 1-1520-238-T-7 11–315 11–77. 26 VAC EXCITATION XFMR 2 NO-GO AFT AVIONICS BAY – 11–77 APPEARS ON HOD (cont) 17. (ACA) Check for short between P493–A9 and ground. Does short exist? YES Repair shorted wire between P493–A9 and P226–6. Go to paragraph 11–23. NO Go to step 19. 18. (ACB) Check for short between P694–3 and ground. Does short exist? YES Repair shorted wire between: P694–3 and P445–B3, J445–B3 and J230–1. Go to paragraph 11–23. NO Go to step 20. 19. (ACA) Check for short between P493–A11 and ground. Does short exist? YES Repair shorted wire between P493–A11 and J225–a. NO Go to step 21. 20. (ACB) Check for short between P694–5 and ground. Does short exist? YES Repair shorted wire between: P694–5 and P445–B6, J445–B6 and P413–A15, P472–B5 and J232–1. (A326): J10–A15 and J15–B5. Go to paragraph 11–23. NO Go to step 22. 21. (ACA) Check for short between wire end (A323)TB3–7–M and ground. Does short exist? YES Repair shorted wire between: P402–B13 and J756–13, P499–A16 and J402–B13, P756–13 and J223–1. (A323): J5–A16 and TB3–7–M. Go to paragraph 11–23. NO Go to step 23. 22. (ACB) Check for short between P694–7 and ground. Does short exist? YES Repair shorted wire between: P694–7 and P445–B8, J445–B8 and P413–A5, P472–B15 and J231–1. (A326): J10–A5 and J15–B15. Go to paragraph 11–23. NO Go to step 24. 23. (ACA) Check for short between wire and (A323)TB3–7–L and ground. Does short exist? YES Repair shorted wire between: P499–A18 and J402–A5, P402–A5 and J756–5, P756–5 and P224–6. (A323): J5–A18 and TB3–7–L. Go to paragraph 11–23. NO Go to step 25. 24. (ACB) Check for short between P694–23 and ground. Is voltage present? YES Repair shorted wire between: P694–23 and J402–A5, P402–A5 and J756–5, P756–5 and P224–6. Go to paragraph 11–23. NO Go to step 26.