TM 11-5821-333-30
Section IV. MAINTENANCE PROCEDURES
2-25. GENERAL
This section has inspection, operational check, and repair procedures.
Normally you should do maintenance in this order:
a. Inspection. Check if the rt is damaged or incomplete. Replace any damaged or missing components.
b. Troubleshooting.
Done on faulty rt noted in operation or during operational check. Do not
troubleshoot good equipment.
c. Repair. The repair procedures are used to restore a faulty rt to serviceable/operable condition. Repair
is by replacement of bad module.
d. Placing in Service. After bad modules have been replaced, the rt must be retested using operational
check. When the rt is working, it may be placed in service.
2-26. INSPECTION
Many faults can be found by inspection. If any are found, replace the bad item. The following chart can be used
as a guide.
ITEM
REMARKS
Front panel
No cracks, dents, or missing parts such as screws, knobs,
mounting hardware, or handle.
Switches
Check for freedom of movement.
Connectors
No broken or missing pins.
Display
No cracks, chips or moisture seepage.
Covers
Check for security. No missing screws. No chipped or
missing paint.
2-27. OPERATIONAL CHECK
Perform the operational check in paragraph 2-23 to verify correct rt operation.
2-28. REPAIR
Repair consists of removing a bad item and installing another.
a. General Instructions. The following instructions apply to all repair tasks.
1. Set FUNCTION switch to STOW.
2. Remove any cables connected to rt.
3. Inspect the rt for damage. Repair any obvious physical damage.
4. Use the module extractor to remove the circuit card assemblies. It is used as follows:
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