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Section V. ADMINISTRATIVE STORAGE - TM-11-5820-873-340048
Up
TM-11-5820-873-34 Radio Set AN/URC-92 (NSN
Next
Table 4-2. Checkout/Troubleshoot the Receiver-Transmitter RT-1277/URC-92


TM 11-5820-873-34
CHAPTER 4
GENERAL SUPPORT
Section I. GENERAL
checkout/troubleshoot and an antenna coupler CU-
4-1. Scope
2229/URC-92 checkout/troubleshoot.
This chapter contains checkout, troubleshooting, repair,
4-2. Voltage Measurements
removal, replacement and other maintenance required
for general support of Radio Set AN/URC-92.  The
Applicable voltages and acceptable tolerances are listed
checkout and troubleshooting procedures are separated
into
a
receiver-transmitter
RT-1277/URC-92
Section II. TOOLS AND EQUIPMENT
3
VDC 0.25
28 VDC 1.5
4-3. Test Equipment
5
VDC 0.25
7.7
VDC 0.8
Refer to TM 11-5820-873-12 Appendix D, TM-11-5820-
9
VDC 0 8
12 VAC 0 8
873-20P and TM 11-5820-873-34P. Also, a BNC to clip
9.56
VDC 0.8
20 VAC 1.5
lead cable is required (Fig 4-1).
10
VDC 0.8
115 VAC 15
Table 4-1 Voltage Measurements
0
VDC 0.2
12 VDC 0.8
2
VDC 0.5
22 VDC 1.5
EL5EB052
Figure 4-1. BNC/Clip Lead Cable
Section III. CHECKOUT/TROUBLESHOOT
portion (steps 1 thru 16) indicates the receiver-
4-4. General
transmitter
is
operationally
ready
for
use
Troubleshooting procedures are designed to function
This section contains checkout and troubleshooting for
from incorrect indications in the checkout Following any
both the receiver-transmitter and the antenna coupler.
repair action, the test technician must return to step 1 of
Completion of a checkout signifies a particular unit is
the  checkout  unless  directed  differently  by  the
operationally ready for use. Troubleshooting procedures
procedure The troubleshooting does not consider
are designed to function from incorrect indications in the
incorrect or missing supply voltages to subassemblies
checkout.
Before any replace/repair action is accomplished on a
subassembly, the test technician should verify all
4-5.
Receiver-Transmitter
RT-1277/-URC-92
necessary  supply  voltages  at  the  subassembly.
Checkout/Troubleshoot.
Incorrect or missing supply voltages should be repaired
using conventional troubleshooting methods. Refer to
The following procedures in Table 4-2 will establish the
the List of Illustrations for the appropriate schematics
operational readiness of RT-1277/URC-92 receiver-
transmitter Successful completion of the checkout
4-1


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