TROUBLESHOOTlNG PROCEDURES.

Chapter 3. UNIT MAINTENANCE

SYMPTOM INDEX

TM-11-6660-266-13 Meteorological Measuring Set AN/TMQ-38 (NSN 6660-01-343-2462) Manual
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TM 11-6660-266-13

3-2. TROUBLESHOOTlNG PROCEDURES.

NOTE

ENSURE THAT THE MMS HAS BEEN SET UP IN ACCORDANCE

WITH THE PROCEDURES IN CHAPTER 2 BEFORE YOU PERFORM

TROUBLESHOOTING PROCEDURES.

SYMPTOM INDEX

SYMPTOM

PAGE

NO.

CONTROL DISPLAY UNIT (CDU)

Display is blank ...........................................................................................................................

3-14

DIGITAL COMMUNICATIONS TERMINAL (DCT)

Display is blank ...........................................................................................................................

3-16

MARWIN MSG RCV does not appear on display after message is sent from

MARWIN Processor ............................................................................................................

3-29

MESSAGE ACK does not appear on display after message is sent to user ........................... 19

3-31

MARWIN Processor

DCT DOES NOT RESPOND warning message is displayed .................................................. 1 7

3-29

FAULT DETECTED, SYSTEM IS FAULTY!, or ERROR message is displayed.. .................... .25

3-37

F1 LED does not illuminate when AC power is applied.. ............................................................ .4

3-9

Local NAVAID stations do not synchronize.. ............................................................................ 1 3

3-25

ON, OFF, and/or RESET switches do not function when STD BY LED is illuminated.. ........... .22

3-34

Paper Tape Reader does not read calibration tape ................................................................. .23

3-35

Powers-up only partially ............................................................................................................

3-38

PTU signal not audible in NAVAID mode when using Directional Antenna ............................. .12

3-24

PTU signal not audible in NAVAID mode when using OMNI Antenna ...................................... 11

3-22

PTU signal not audible in RDF mode.. .....................................................................................

.14

3-26

STD BY LED does not illuminate when DC power is applied.. ................................................... 5

3-11

STD BY LED does not illuminate when fuse F1 LED is illuminated .......................................... 24

3-36

Wind Dir and Speed is displayed as\\ \ \ \ \ i n RDF mode.. ............................................... .15

3-27

W12-Signal Strength too Low warning message is displayed.. ................................................ .20

3-32

W13-Signal Strength too High warning message is displayed.. ............................................... .21

3-33

3-2

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