TM 1-1270-476-304-3704-45. LASER ELECTRONICS UNIT (LEU) HARNESS ASSEMBLY W1 REPAIR (cont)1. HARNESS ASSEMBLY W1 REPLACEMENTREMOVALa. Remove 20 screws (1) and washers (2) securing bottom cover (3) to LEU case (4). Remove bottom cover (3) and discard preformed packing (5).b. Remove seven screws (6), washers (7), and 14 nylon washers (8) securing motherboard (9) to LEU case (4).CAUTIONUse care when raising motherboard to access connectors. Avoid excessive strain on wiring harness.c. Raise motherboard (9) to access connectors P1 (10), P2 (11), and P3 (12).d. Loosen two screwlocks (13) and disconnect connector P3 (12) from connector J3 (14).e. Loosen two screwlocks (15) and disconnect connector P2 (11) from connector J2 (16).f. Loosen two screwlocks (17) and disconnect connector P1 (10) from connector J1 (18).g. Place motherboard (9) on protected surface.
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