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Home > Ordnance Documents and other related manuals > > Beginning Self-Test 666.
VTM Confidence Tests.
Testing for a Faulty SETCOM. - Od16090120

M2/M3 Bradley Fighting Vehicle: Turret
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M2/M3 BRADLEY FIGHTING VEHICLE: TURRET - OD1609 LESSON 3/TASK 1
d.
Running Self-Test 666.
From this point on, all testing is done using the
SETCOM unit.  Continue the self-test by performing these steps, in sequence:
NOTE
The  sections  of  the  self-test  outlined  below  have
been
titled to assist in identifying the main component
being
tested.
In some cases, components other than the
main
component  identified  in  the  section  title  are
being
simultaneously tested.
(1)
Beginning Self-Test 666.
To begin self-test 666, follow these steps:
Step 1.
Press the CLEAR button on the SETCOM.  The display should read: ENTER
TEST NUMBER.  If the display cannot be cleared (does not read ENTER TEST NUMBER),
replace the VTM, in accordance with the procedures outlined in TM 9-4910-751-14-1.
The  faulty  VTM  must  undergo  intermediate  direct  support  maintenance  level
troubleshooting  procedures  for  symptom  25  as  outlined  in  TM  9-4910-751-14-2,
chapter 6.
Step 2.
Press the 6 key three times.
The display should read: ENTER TEST
NUMBER: 666.  Note that the CLEAR key can also be used to clear the display if a
wrong number is entered.
Step 3.
Press the GO key.  The display should read: TEST 666 SELF-TEST.  If the
display  does  not  read  this,  troubleshoot  the  test  set  for  the  symptom  SET
COMMUNICATOR DOES NOT DISPLAY TEST 666 SELF-TEST, outlined in TM 9-4910-751-14-1.
Step 4.
Press the GO key.
The display should show the words: REVISION DATE,
followed by a number indicating the date when the program was updated.
(2)
Testing for a Faulty VTM.
The self-test continues by checking for a
faulty VTM.
Step 1.
Press the GO key.
The SETCOM display should say: REMOVE CABLES FROM
CIB J1, J2, and J3.  Check to make sure that no cables are connected to
112






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