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TM 55-4920-430-13
4-65. Continuity Test (CRC). (See fig. 4-8.) Test of the control panel consists of continuity and
voltage measurements. The following test checks the circuit that provides a source of continuity test
current, an indicator light that indicates continuity, and two selector switches that connect the test cir-
cuit to all control panel pins for continuity testing. For this test, continuity is defined as a resistance of
0.5 to 1.5 ohms. Proceed as follows:
a. Perform the following continuity test by setting the continuity test TENS and UNITS switches
S13 and S14. Observe the continuity light while 0.5 ohms is connected between the test points; the light
shall be ON. Change to 1.5 ohms; the light shall be OFF.
b. For the self test open test (position 00-0), the light shall be off. For position 00-1, the light shall be
on (self short test).
NOTE
q Continuity selector positions 00-2 thru 10-5 are for AFCS panel
tests. Positions 20-0 thru 30-6 are for AFCS computer test.
q J4 is PANEL J1. J5 is PANEL J2.
DO NOT connect CCDA cable assembly W6 to the test set during this
test.
UNITS
4
3
7
8
9
0
1
2
5
6
J4-K
J4-P
Off
On
J4-R
TENS
00
J4-F
J4-G
J5-H
J5- P
J4-H
J4- L
J4-N
J4-N
Self Test
Self Test
J4-N
J5-K
J4-L
J5-L
J5-N
Open
Short
10
J5-R
J4-L
J4-P
J4-R
J5-P
J5-R
J5-L
J5-L
J4-U
J4-V
J5-U
J5-V
J1-h
20
J1-z
J3-f
J1-J
J2-3
J3-C
J3-D
J3-N
J3-t
J1-R
J3-AA
J3-AA
J3-AA
J1-f
J3-AA
J3-AA
J3-AA
J3-AA
J3-AA
J3-AA
30
J1-t
J1-X
J1-M
J1-KK
J1-GG
J1-p
J1-k
J3-AA
J3-AA
J3-AA J3-AA
J3-AA
J3-AA
J3-AA

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