CRYPTO IGNITION KEY (CIK).

TB 11-5820-890-12

4-20. CRYPTO IGNITION KEY (CIK).

CAUTION

**ESDS"*

*.ESDS**

THIS EQUIPMENT CONTAINS PARTS AND ASSEMBLIES SENSITIVE TO DAMAGE

BY ELECTROSTATIC DISCHARGE (ESD). USE ESD PRECAUTIONARY

PROCEDURES WHEN TOUCHING, REMOVING OR INSERTING PRINTED CIRCUIT

BOARDS.

A defective CIK is replaced when it is worn or electrically defective. The following steps describe the replacement of

the defective CIK. See Paragraph 3-12 for CIK replacement procedures.

4-21. HOUSING COMPONENTS.

The following paragraphs describe replacement procedures for housing components at Unit level maintenance.

Refer to Figure 4-1 for location of parts.

CAUTION

The ANCD housing is made of composite materials and must be handled with care when replacing any

part that is attached with screws to prevent EMVEMF hazards due to case damage.

Hinges. The hinge assembly is composed of two hinge cover plates, two springs, and the four screws that

are user replaceable. The hinge covers are not interchangeable. The following paragraphs detail the

replacement procedures. Refer to Figure 4-1 to replace any part of the assembly.

(1)

Front Hinge Cover

STEP 1

Open the ANCD

STEP 2

Using a Phillips screwdriver, remove the two hinge screws (2) holding the top cover (5) onto the hinge

assembly.

STEP 3

Lift the defective cover off the assembly and install the replacement cover.

STEP 4

Install and tighten the two hinge screws (2) into the assembly.

4-9