Table 6.2 Operator Troubleshooting for ATN NVM-14
Malfunction | Test or inspection | Corrective Action |
|
|
|
1. Monocular fails to | Visual. | Turn switch to OFF position and then |
activate. |
| ON. |
| Check for defective, missing or improp- | Replace batteries or install correctly. |
| erly installed batteries. |
|
|
|
|
2. IR illuminator fails | In a dark location with system turned on, | If IR illuminator fails to activate, refer to |
to activate. | activate IR. Visually check IR illuminator | higher level of maintenance. |
| operation; scene should brighten. |
|
|
|
|
3. IR indicator fails | Visual. | Refer to higher level of maintenance. |
to activate. |
|
|
|
|
|
4. Poor image | • Check objective lens or ey piece focus. | •Refocus. |
quality | • Check for fogging or dirt on lens. | •Clean lens surface. |
| ||
|
| • If image quality is still poor, refer to |
|
| higher level of maintenance. |
|
|
|
5. Light visible | • Check | • Readjust for proper |
around eyecup | • Check eyecup for resiliency. | • If eyecup is defective, refer to higher |
| ||
|
| level of maintenance. |
|
|
|
