TM 1-6625-476-30
3-6
3-7. PRETESTING DATA. (CONT)
b. Mirror Movement. At the beginning of the test, after power is applied but before the gyros have spun
up, the elevation mirror position will oscillate. Once the gyro has reached operating speed, no further
oscillation should occur.
c. Test Program Delays. At times, the UUT test program will appear to have stopped for up to 20
minutes. This is because some portions of the program require this amount of time to execute. During
these times, a prompt will appear on the VDT explaining that a program delay is in progress.
3-8. FINAL ACCEPTANCE.
When the PNVS NSA has been repaired, repeat the UUT test. If an ALL TESTS GO prompt is received
at the end of the test, the PNVS NSA is considered to be fully operational.
