ACT THE-14, Руководство оператора

Страница: 38 / 47

39
IR source In a dark location If IR source still fails to
fails to with system turned activate, refer to higher
activate. on, activate IR source. level of maintenance.
Visually check IR
source operation; scene
should brighten.
IR source Visual. Refer to higher level of
indicator maintenance.
fails to
activate.
Poor image
quality. Check objective lens
or eyepiece. Refocus.
Check for fogging or
dirt on objective lens
or eyepiece lens. Clean lens surface per
paragraph 4.5.
Check eye relief
distance. Readjust for proper eye
relief distance.
Light visible
around
eyecup. Check eyecup for
resiliency. If eyecup is defective,
refer to higher level of
maintenance.
Diopter Check to see if the If damaged, refer to higher
adjustment diopter adjustment is level of maintenance.
cannot be bent or broken.
made.
Table 5-1 Troubleshooting, (cont.)