REMOVING AND REPLACING FRONT PANEL ASSEMBLY

TM 11-5805-387-34-2

SCOPE MODULE A2 CRT

DEATH ON CONTACT may result from contact with high voltage in scope module A2. Scope

module contains 1,100 volts dc.

CAUTION

USE CAUTION WHEN EXPOSING OR HANDLING THE CRT

Breakage of the cathode-ray tube (CRT) causes a high velocity scattering of glass fragments

(implosion). To prevent CRT implosion, avoid rough handling or jarring of the instruments.

Handling of the CRT shall be done only by qualified maintenance personnel using approved

safety masks and gloves.

REMOVE

Loosen the four captive screws holding module to chassis.

Lift out module.

REPLACE

Plug new module into chassis connector.

Tighten the four captive screws to secure module to chassis.

2-9. REMOVING AND REPLACING FRONT PANEL ASSEMBLY

The modem's front panel cannot be removed completely, but it can be swung away from the chassis to allow access

to the components inside.

REMOVE

Remove the lower six screws holding front panel assembly to the right and left sides of the chassis.

NOTE

Do not remove the top shoulder screws. They serve as hinges.

Grasp the sides of the front panel near the bottom edge and pull the panel upward until it is parallel to

the chassis.

Turn the chassis and front panel bottom side up.

Remove the screws holding the cover of the L-shaped compartment housing along the bottom edge of

the front panel. (This provides access to the printed circuit boards.)

REPLACE

Screw on cover of the L-shaped compartment housing.

Turn the chassis and front panel top side up.

Grasp the sides of the front panel and push the panel downward until it is perpendicular to the chassis.

Secure the front panel to the right and left sides of the chassis with six screws.

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