 |
|||
|
|
|||
|
Page Title:
Control Position Transducer Signals Tests (CRC) |
|
||
| ||||||||||
|
|
 TM 55-4920-430-13
CPT, and DIR CPT ANALOG SIGNALS switches, measure the magnitude of the voltages. Connect the
VOLTAGE MODE
RESPONSE
TEST
SWITCH OFF
RECEPTACLE
(VAC)
PINS
STIMULUS
SWITCH
POSITION
SIGNAL
*
1
J1-K (line) to J1-H
522
LONG CPT
3.83 to 4.17
*
2
0.000 to 0.006
*
0.18 to 0.22
3
*
0.95 to 1.05
4
5
3.83 to 4.17
1.038 to l.102
1
J1-K (line) to J3-AA
2.978 to 3.162
2
3.065 to 3.255
3
4
3.463 to 3.677
4.918 to 5.222
5
4.918 to 5.222
1
J1-H (line) to J3-AA
2.978 to 3.162
2
2.871 to 3.049
3
2.493 to 2.647
4
1.038 to 1.102
5
*
1.08 to 1.20
S23
1
J1-g (line) to J1-i
LAT CPT
*
0.95 to 1.05
2
0.000 to 0.006
3
2.425 to 2.575
1
J1-g (line) to J3-AA
2
2.493 to 3.647
2.978 to 3.162
3
1
J l-i (line) to J3-AA
3.531 to 3.749
2
3.463 to 3.677
2.978 to 3.162
3
0.000 to 0.005
1
S24
J1-AA (line) to J1-y
DIR CPT
*
0.95 to 1.05
2
*
1.l0 to l.22
3
2.978 to 3.162
1
J1-AA (line) to J3-AA
2
3.463 to 3.677
3.550 to 3.770
3
2.978 to 3.162
1
J1-y (line) to J3-AA
2.493 to 3.647
2
2.425 to 2.575
3
* Check that the signal levels are less than 0.005 vac when RESPONSE TEST MODE switch S8 is set to ON.
ATT synchro, which simulates the vertical gyro that furnishes the pitch and roll attitude signals to the
AFCS.
NOTE
q When a test includes a requirement that an ac voltage be in-phase
or out-of-phase, oscilloscope channel A must be connected across
the digital multimeter. Oscilloscope channel B must be connected
to the ac source and the oscilloscope externally triggered from the
ac source.
q The minus sign (-) before an ac voltage indicates out-of-phase.
a. Connect the digital multimeter, set to measure ac volts across the receptacle pins listed below.
b. Check that results are within the ranges listed below.
c. Set switches and control as listed in test steps.
|
|
Privacy Statement - Press Release - Copyright Information. - Contact Us |
Click
here for thousands of PDF manuals