TM 1-1520-238-T-6
9–281
9–88.
PILOT COLLECTIVE STICK – DOES NOT LIGHT LANDING/SEARCH LIGHT (cont)
9–88
10. (AAJ) Check for 28 VDC at (A701)XK1-C.
Is voltage present?
YES
Go to step 12.
NO
Go to step 11.
11. Check for open between:
(A701)XK1-C and (A701)TB1-3-A,
(A701)TB1-3-B and DS11-8.
Does open exist?
YES
Repair open wire.
Go to paragraph 9–80.
NO
Replace landing/search light
(TM 1-1520-238-23).
12. Check for 28 VDC at (A701)XK1-B.
Is voltage present?
YES
Go to step 14.
NO
Go to step 13.
13. Check for open between:
(A701)XK1-B and (A701)TB1-1/2-F,
(A701)TB1-1/2-E and (A402)J29-4.
Does open exist?
YES
Repair open wire.
Go to paragraph 9–80.
NO
Go to paragraph 9–263 to
troubleshoot circuit protection
system (dc emergency bus –
pilot station).
14. Check for 28 VDC at (A701)XK1-A.
Is voltage present?
YES
Go to step 15.
NO
Replace search light relay
(A701)K1 (TM 1-1520-238-23).
15. Check for open between:
(A701)XK1-A and (A701)TB1-1/2-C,
(A701)TB1-1/2-B and DS11-9.
Does open exist?
YES
Repair open wire.
Go to paragraph 9–80.
NO
Replace landing/search light
(TM 1-1520-238-23).
END OF TASK
