Stopping Procedure - TM-11-6625-667-120032

TM 11-6625-667-12/NAVAIR 16-30APM-123-1/TO 33A1-3-367-1

(21) Wait at least 15 seconds and then on the

close access door ensuring main power is still on the

C-6280A(P)/APX turn MASTER switch to OFF.

aircraft. Verify the key by performing the procedures

in (12) above.

(22) Wait at least 15 seconds and then on the

C-6280A(P)/APX turn MASTER switch to STBY for a

(25) On the test set, place the PUSH TO TEST

warmup of about 30 seconds; then turn MASTER

switch to LOCK position, and observe the following.

switch to NORM.

(a) On the test set the REJECT light should

light.

NOTE

To assure the KIT/SEC will zeroize when

(b) Audio tone should be heard in the headset.

power is interrupted or removed, IFF hold

(c) IFF CAUTION light located on aircraft in-

switch should always be in the OFF position

strument panel should light.

unless test or flight procedures require going

(26) Return CODE switch on C-6280A(P)/APX to

into code hold operation.

the A position.

(23) On the test set, briefly depress PUSH TO

2-11. Stopping Procedure

TEST switch. The REJECT light should come on mo-

a. To stop the test set, release the PUSH TO TEST

mentarily, then the ACCEPT.

switch if it is in the LOCK position and set the

(24) On the C-6280A(P)/APX pull out CODE

28VDC-115VAC-OFF power switch to OFF.

switch and turn to ZERO, and place AUDIO/LIGHT

b. On aircraft with rigid landing gear, set IFF CODE

switch to AUDIO position.

HOLD switch located on aircraft instrument panel to

NOTE

OFF.

Subparagraph (4) will be performed only if

c. On transponder set control C-6280A(P)/APX turn

the aircraft is to go on operational status.

MASTER switch to OFF. Open the access door to the

(24.1) After performing the above test, using

KIK-18/TSEC Code Changer, rekey the KIT/TSEC and

KIR/TSEC is zeroized. Close access door.

U.S. GOVERNMENT PRINTING OFFICE: 1977-765010/349

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