TM 9-2350-287-20-12-19. TROUBLESHOOTING CHART (continued).h. LIGHTS (continued).(11 ) ONE OR BOTH BLACKOUT (BO) DRIVE LIGHTSFAIL TO OPERATE. All other lights operate.(continued).CONTINUED FROM HIs voltage indicated?Replace lighting switch of driver’s instrumentpanel (para 7-9). Verify problem is solved.I. 1. Reconnect harness 12330252 to lightingswitch.2. Disconnect wire 15 of harness 12330252from wire 10L of cable assembly 12376405at no. 2 position of circuit breaker panelno. 2.3. Place multimeter red lead in wire 10L andground black lead.4. Turn MASTER switch ON (refer to TM 9-2350-287-10).5. Check for 24 ± 3 vdc.6. Turn MASTER switch OFF (refer to TM 9-2350-287-1 0),Is voltage indicated?Notify Direct Support maintenance.Repair wire 10L or replace cable assembly12376405 (para 7-57).END OF TASK2-177
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