TM 5-6350-280-23&P
SECTION II DIRECT SUPPORT TROUBLESHOOTING
4.4 DIRECT SUPPORT TROUBLESHOOTING.
Use the symptom index or table 4-1 to locate the specific troubleshooting procedure to perform. After locating the listed
malfunction, perform the test/inspections and corrective actions in the order listed in the troubleshooting procedure. The
symptom index and troubleshooting procedures cannot list all the malfunctions that may occur, all the test and inspections
needed to find the fault, or all the corrective actions needed to correct the fault. If the equipment malfunction is not listed
or actions listed do not correct the fault, notify your supervisor.
SYMPTOM INDEX
Malfunction
Troubleshooting
Procedure
Number
REMOTE AREA COM-FAIL.........................................................................................................................
1
SINGLE MODULE (MOD) FAILURE 2
TWO MODULE (MOD) FAILURES ON SAME BACKPLANE .........................................................................
3
FOUR MODULE (MOD) FAILURES SAME DRAWER ASSEMBLY ................................................................
4
COM FAILURE INDICATED ON MONITOR AREA STATUS
SCREEN FOR ALL MODULES..............................................................................................................
5
TAMPER ALARM INDICATED ON MONITOR AREA STATUS
SCREEN WITH CONVERTER MULTIPLEXER ASSEMBLY
(CMA) COMPLETELY CLOSED ............................................................................................................
6
CONVERTER MULTIPLEXER ASSEMBLY (CMA) IS OPEN
AND TAMPER ALARM IS NOT INDICATED ON
MONITOR AREA STATUS SCREEN.....................................................................................................
7
MONITOR AREA STATUS SCREEN INDICATES UNINTERRUPTIBLE
POWER SUPPLY (UPS) IS ON BATTERY POWER YET AC
POWER IS INDICATED ON UPS...........................................................................................................
8
REMOTE AREA COM ALTERNATING BETWEEN COM-FAIL-100
AND COM-norm-000.............................................................................................................................
9
NO POWER TO COMPUTER......................................................................................................................
10
Table 4-1. Remote Area COM Message/Troubleshooting Procedure Cross-Reference List.
COM Message on
Meaning of Refer to
Troubleshooting
Computer Printout
COM Message
Procedure
COM-norm-000
Communications are good.
None*
COM-FAIL-001
A line fault or low signal
1
level is present.
COM-FAIL-010
Data signal loss
1
4-2
