TM 11-5841-287-30
Table 3-2. Encoder and Data Link Control Troubleshooting- Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 2 Radar range and/or delay error present
Test 2A13 (para 3-34), 2All (para 3-32) Check chassis wiring Repair or replace as necessary
Step 3 Drift angle error present
Test 2A13 (para 3-34), 2A9 (para 3-31), 2A5 (para 3-29) Check chassis wiring Repair or replace as necessary
Step 4 Ground speed error present
Test2A16 (para 3-36), 2All (para 3-32) Check chassis wiring Repair or replace as necessary
Step 5 ADAS error present
Test2A16 (para 3-36), 2All (para 3-32) Check chassis wiring Repair or replace as necessary
Step 6 Only FT video errors present
Test 2A3 (para 3-8), 2A4 (para 3-28), 2A17 (para 3-37), 2A9 (para 3-31), 2A7 (para 3-30), 2A5 (para 3-29), 2A6 (para 3-29), and 2A14 (para 3-35)
, and 2A2 (para 3-27) in order
Step 7 Only MT video errors present
Test 2A5 (para 3-29), 2A6 (para 3-29), 2A17 (para 3-37), 2A9 (para 3-31), 2A7 (para 3-30), 2A14 (para 3-35), and 2A2 (para 3-27) m order
Repair or replace as necessary
Step 8 Both FT and MT errors present
Test 2A17 (para 3-37), 2A9 (para 3-31), 2A14 (para 3-35), 2A7 (para 3-31), 2A5 (para 3-29), 2A6 (para 3-29), 2A2 (para 3-27) In order Repair
or replace as necessary
Step 9 Abnormal fm spectrum from data transmitter present(with known good UHF receiver-transmitter)
Test 2A17 (para 3-27) Repair or replace as necessary
Step 10
Receive-transmitter errors present (with known good UHF receiver-transmitter)
Test 2A17 (para 3-37), 2A12(para 3-33) Repair or replace as necessary
12. ALL OTHER MALFUNCTIONS
Perform steps 2 and 3 of Malfunction 7
3-8.
Uhf Radio Set Troubleshooting
Refer to TM11-5841-286-13 for uhf radio set
troubleshooting procedures.
Section IV. MAINTENANCE OF TRANSMITTING SET,
RADAR DATA AN/AKT-18B
components referenced m the removal and replace-ment
3-9.
General
procedures. Only standard hand tools supplied with Tool
The following paragraphs contain maintenance
Kits, Electronic Equipment TK-100/G and TK-105/G are
instructions for the encoder and data hnk control,
required to accomplish the removal and replacement
including removal and replacement procedures, filter re-
procedures.
pair, cleaning, adjustment and repainting instructions.
WARNING
Refer to TM 11-5841-286-13 for maintenance of Radio
Set AN/ARC- 164(V) 16.
Disconnect power from the equipment
before
performing
removal
or
replacement procedures Failure to
3-10. Removal and Replacement Procedures.
comply could result in electrical shock
injury to personnel or dam-age to the
removal and replacement of encoder subassemblies and
equipment.
chassis-mounted parts on the encoder and data link
control Figures 3-4 and 3-5 show the location of all
Change 1 3-11
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