Quantcast Table 4-2. Checkout/Troubleshoot the Receiver-Transmitter RT-1277/URC-92 (cont) - TM-11-5820-873-340060

 

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Table 4-2. Checkout/Troubleshoot the Receiver-Transmitter RT-1277/URC-92 (cont) - TM-11-5820-873-340059
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TM-11-5820-873-34 Radio Set AN/URC-92 (NSN
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Table 4-2. Checkout/Troubleshoot the Receiver-Transmitter RT-1277/URC-92 (cont) - TM-11-5820-873-340061


TM 11-5820-873-34
Table 4-2. Checkout/Troubleshoot the Receiver-Transmitter RT-1277/URC-92--Continued
STEP
ACTION
INDICATION
NEXT STEP
186
Set mode switch to OFF. Using a multimeter between ground
Switches check good.
Yes: step 187
and pin indicated, perform frequency switch checks as shown
No: step 191
below.
NOTE
1 = 500 ohms or more
0 = 0 ohms
Frequency Switch Coding
10 MHz Switch Setting
1A1P3
(A or B)
Pin 2
Pin 3
Pin B
0
0
1
1
1
1
0
1
2
1
1
0
1 MHz Switch Setting
1A1P3
(A or B)
Pin 4
Pin D
Pin H
Pin 7
0
1
0
0
1
1
1
0
0
0
2
0
1
1
1
3
0
1
1
0
4
0
1
0
1
5
0
1
0
0
6
0
0
1
1
7
0
0
1
0
8
0
0
0
1
9
0
0
0
0
100 KHz Switch Setting
1A1P3
(A or B)
Pin 5
Pin E
Pin F
Pin 6
0
0
0
0
0
1
1
0
0
1
2
1
0
0
0
3
0
1
1
1
4
0
1
1
0
5
0
1
0
1
6
0
1
0
0
7
0
0
1
1
8
0
0
1
0
9
0
0
0
1
10 KHz Switch Setting
1A 1P3
(A or B)
Pin R
Pin K
Pin 9
Pin 14
0
0
0
0
0
1
0
0
0
1
2
0
0
1
0
3
0
0
1
1
4
0
1
0
0
5
0
1
0
1
6
0
1
1
0
7
0
1
1
1
8
1
0
0
0
9
1
0
0
1
1 KHz Switch Setting
1A1P3
(A or B)
Pin P
Pin L
Pin 10
Pin 13
0
0
0
0
0
1
0
0
0
1
2
0
0
1
0
3
0
0
1
1
4
0
1
0
0
5
0
1
0
1
6
0
1
1
0
7
0
1
1
1
8
1
0
0
0
9
1
0
0
1
100 Hz Switch Setting
1A1P3
(A or B)
Pin N
Pin M
Pin 11
Pin 12
0
0
0
0
0
1
0
0
0
1
2
0
0
1
0
4-12


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