TM 11-6625-3081-23
2-14. MODULE DESCRIPTIONS (cont)
2-14
c. TEST CONSOLE TEST BENCH 2A2 (cont)
Input Code
MTRXSW
OSGST
OSGALIGN
DIGITST
Description
This module tests matrix switch assembly 2A2A1O 120 x 16 relays
for both open and closed positions. The matrix switch assembly
built-in self-test is performed on quadrants 1, 2, 3, and 4.
If an error is detected, a prompt is displayed at the completion
of the test.
This module tests the ability of the optical signal generator
(OSG) assembly 2A2A3 lamps to respond to on and off commands.
Lamp detector Al is checked through the A/D converter lamp
detector channel.
Voltage is applied and output compared to an
upper limit of 0.50 vdc and a lower limit of -1.00 vdc.
The CTF lamp is then checked with an application of 10.0 vdc.
After a 2 second delay output is compared to an upper limit of
4.00 vdc and lower limit of 0.80 vdc.
Lamp detector A2 is
checked for same parameters as detector A1.
The sphere lamp is then checked with an application of 34.0 vdc.
After a 2 second delay output is compared to an upper limit of
4.00 vdc and lower limit of 0.80 vdc.
Lamp detector A3 is
checked for same parameters as detector Al.
The CTF lamp is then checked with an application of 23 vdc.
After a 2 second delay output is compared to an upper limit of
8.00 vdc and lower limit of 2.00 vdc. If an error is detected a
prompt is displayed at the completion of each test.
This module checks the alinement of potentiometers R2, R4, and
R6 on the amplifier/detector CCA in optical signal generator
2A2A3.
If the CCA is out of alinement, the software directs the
operator to perform the appropriate adjustments.
This module tests the ability of programmable digitizer assembly
2A2A1 to accept stimulus inputs and convert them to digital
equivalents.
If an error is detected in the following checks, a prompt is
displayed at the completion of the test.
Change 9
2-75
