TM 1-1520-238-T-7 11–287 11–59. ROTOR BRAKE NO-GO PLT COMPARTMENT – APPEARS ON HOD 11–59 Tools: Nomenclature Part Number Tool Kit, Electrical SC518099CLA06 Repairer’s Multimeter, Digital AN/PSM-45 Personnel Required: 68X Armament/Electrical Systems Repairer References: TM 1-1520-238-T-5 TM 1-1520-238-23 Equipment Conditions: Ref Condition TM 1-1520-238-23 Access provisions – R295 door open WARNING Turn off power before detaching or attaching wires and connectors. High current 28 VDC or 115 VAC is present. Failure to do so could result in death or serious injury. To prevent the possibility of shorting, use extreme care when checking voltage at mass termination connectors. Failure to do so could result in damage to equipment or possible injury to personnel. 1. On pilot power quadrant, with RTR BK switch set to BRAKE, check for 28 VDC at P170–A7. Is voltage present? YES Go to step 3. NO Go to step 2. 2. Check for open between P173–b and P170–A2. Does open exist? YES Repair open wire. Go to paragraph 11–23. NO Refer to TM 1-1520-238-T-5 to troubleshoot hydraulic and pneumatic system. 3. Check for 28 VDC at P686–114. Is voltage present? YES (ACA) Replace DASEC (TM 1-1520-238-23). (ACB) Go to step 5. NO Go to step 4. 4. Check for open between: P170–A2 and J447–A6, P447–A6 and P686–114. Does open exist? YES Repair open wire. Go to paragraph 11–23. NO Replace pilot ASE panel (TM 1-1520-238-23). 5. (ACB) Detach filter adapter A707. Check for open through pin A707–114. Does open exist? YES Replace filter adapter (TM 1-1520-238-23). NO Replace DASEC (TM 1-1520-238-23). END OF TASK