23
Cobra
USER MANUAL
MALFUNCTION
PROBABLE CAUSE/ TEST/
INSPECTION
CORRECTIVE ACTION
Poor image
quality.
Check objective lens and
eyepieces focus.
Refocus.
Check for fogging or dirt on
objective lens and eyepieces.
Clean the lenses as detailed in Part
2.2.2.
The equipment is damaged.
Please contact Customer Support.
No image on an
external monitor.
Video cable is damaged.
Replace the video cable with a new
one. If this is not effective, please
contact Customer Support.
The equipment is damaged.
Please contact Customer Support.
Hindered rotation
of the battery cap.
Dirty cap thread.
Clean the thread.
Damaged cap thread.
Replace the cap with a new one. If
this is not effective, please contact
Customer Support.
Light is visible
around eyecups.
Check eyecups resilience.
If the eyecups are defective, please
contact Customer Support.
3.2 MAINTENANCE
3.2.1 GENERAL
The Cobra operator maintenance consists of operational tests, inspections for unit serviceability,
cleaning and mounting procedures, and corrective actions (troubleshooting and replacement
of a limited number of parts). Maintenance instructions covered elsewhere in this manual
(troubleshooting, etc.) are not repeated in this section.
CAUTION:
The Cobra is a precision electro-optical instrument and must be handled carefully at all times to
prevent damage.
CAUTION:
DO NOT dismantle the equipment.
3.2.2 CLEANING PROCEDURES
Clean the Cobra and optional items as follows:
1. Gently brush off any dirt from the equipment using only a clean, soft cloth.
2. Moisten the cloth with fresh water and gently wipe the external surfaces (except for optical
surfaces).
3. Dry any wet surfaces (except for optical surfaces) with another clean, dry, soft cloth.
4. Using a lens brush, carefully remove all loose dirt from optical surfaces (objective lens and
eyepiece).
Summary of Contents for COBRA TB50-336
Page 1: ...USER MANUAL COBRA THERMAL IMAGING BI OCULAR...
Page 31: ......
