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
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