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TM 11-5820-890-30-5
Section Ill. SERVICE UPON RECEIPT
3-11. CHECKING UNPACKED EQUIPMENT.
a. Inspect the equipment for damage incurred during shipment. If the equipment has been damaged,
report the damage on DD Form 6, Packaging Improvement Report.
b. Check the equipment against the packing slip to see if the shipment is complete. Report all
discrepancies in accordance with the instructions of TM 38-750.
c. Check to see whether the equipment has been modified.
3-12. ASSEMBLY AND INSTALLATION OF STANDARD TEST SETUP.
The reference fixture and mounting base can be secured to a work bench. This may be desirable for some
installations. A 12 ft power cable is provided. A 28 V dc power source must be provided by the user. The
following procedure describes a typical installation. Steps marked with must be performed exactly as
written. They are critical in maintaining the nuclear hardness of the mounting adapter and RT. Seals must not be
damaged. All screws must be torqued to the limits specified in the replacement procedure.
ITEM
ACTION
REMARKS
a.
b.
Mounting base
Set on work surface.
Attaching hardware is
Secure to work surface if desired.
provided with the mount.
See figure 3-5.
Position must be within 12
Remove connector caps from
feet of power source
J1 and J5.
(22 to 32 V dc).
Cable CX-4720/VRC
Connect to mounting base J1
c.
and power source.
Mounting adapter
For AM-7239/VRC, remove cover and
check position of shorting bar. It should
connect TB2-1 to TB2-2. Torque cover
screws to 12 in-lb.
d. RT
e. Audio cable
f. Reference fixture
For AM-7239B/VRC, set LCL/RMT
See figure 3-5.
switch to LCL.
Remove cap from P1. Set CB1 to OFF.
Install mounting adapter in mounting base.
Tighten outer thumbscrews.
Install holding battery.
See figure 3-5.
Remove caps from J6 and P1.
Install in lower slot in the mounting adapter.
Tighten thumbscrews.
Connect to RT AUD/DATA connector and
mounting adapter DATA J5 connector.
Insure all thumbscrews are tight.
Perform operational check in
paragraph 3-17.
3-21
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