TM 1-1520-238-T-7
11316
1177.
26 VAC EXCITATION XFMR 2 NO-GO AFT AVIONICS BAY
1177
APPEARS ON HOD (cont)
25. (ACA) Check for short between P493A13 and
ground.
Is voltage present?
YES
Repair shorted wire between
P493A13 and P2286.
Go to paragraph 1123.
NO
Go to step 27.
26. (ACB) Check for short between P69425 and
ground.
Is voltage present?
YES
Repair shorted wire between:
P69425 and J402B13,
P402B13 and J2331.
Go to paragraph 1123.
NO
Repair shorted wire between:
P69411 and J2251,
P69413 and P2266,
P69415 and P2286,
P69417 and J2271,
P69419 and P2206,
P69421 and J2191.
Go to paragraph 1123.
27. (ACA) Check for short between P493A15 and
ground.
Is voltage present?
YES
Repair shorted wire between
P493A15 and J2271.
Go to paragraph 1123.
NO
Go to step 28.
28. (ACA) Check for short between P41315 and
ground.
Is voltage present?
YES
Repair shorted wire between:
P413A14 and J459B1,
P459B1 and P493A17.
Go to paragraph 1123.
NO
Repair shorted wire between:
P472B5 and P232A,
P413A11 and P233A,
P472B15 and P231A,
P413A7 and P230A.
(A326):
J10A15 and TB120A,
J10A11 and TB120B,
J15B5 and TB120C,
J10A17 and TB120E.
Go to paragraph 1123.
END OF TASK
