TM 9-2350-247-20-1INSTRUMENT PANEL ILLUMINATION LIGHTS MALFUNCTION 0045 00INITIAL SETUP:Maintenance LevelUnitTools and Special ToolsGeneral Mechanic’s Tool Kit (WP 0541 00, Item 57)Multimeter (WP 0541 00, Item 29)Personnel RequiredUnit MechanicReferencesSee your -10Equipment ConditionEngine stopped (see your -10)Carrier blocked (see your -10)NOTEM548A1 and M548A3 troubleshooting procedures are the same. M548A1 procedure is shown.T1. Operate all exterior lights (see your -10).2. Do any exterior lights operate in any light switch positions?YESNOTN1. Go to no exterior lights operate(WP 0034 00).Y1. Remove instrument panel illumination light cover lense (1),illumination light cover lense (2), gasket (3), and gasket (4).2. Operate light switch in DIM and BRT positions (see your -10).3. Do both lights malfunction?YESNOGO TO BY (PAGE 0045 00-3)0045 00-1
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