15
en
8.
Troubleshooting list
Malfunction
Cause
Remedy
No image on the monitor
Device not powered
Verify that all units are connected to mains power and
switched on
Fuse is broken
Replace the fuse in the camera
Video cable defective
Replace video cable
Video cable not connected
Connect video cable
Image too dark
Camera cable not connected or defective
Ensure that the camera head is connected to the camera
control unit and the camera plug is dry
Light guide cable defective
Connect a new light guide cable. Have repaired by manu-
facturer
Light source dimmed down
Turn up the light source intensity
Camera brightness regulated down
Regulate camera brightness up
Endoscope optical system defective
If the image is too dark even without the camera: Use a
different endoscope and have the defective endoscope
repaired by the manufacturer
Image fuzzy or poorly defined
Object out of focus
Turn focusing ring
18
on the endoscopic lens and adjust
the focus until the image is sharp
Debris on the endoscope tip
Clean tip with a sterile cloth and isopropyl alcohol (70 %)
Moisture on the camera cable plug
Dry plug with gauze before plugging it in at the camera
socket
Image fogged
-
Check if the front and rear windows of the endoscope and
the front window of the endoscopic lens are clean; if nec-
essary, clean with isopropyl alcohol (70 %)
Noise or excessive grain in the pic-
ture
-
Increase intensity of the light source
Image too bright or glary
-
Reduce the intensity of the light source
Color bar diagram on the monitor
Camera cable not connected to the camera control
unit
Connect camera cable at the camera control unit
Unrealistic color representation on
the monitor
White balance failed
Start white balance-adjustment
Monitor color setting misadjusted
Reset to factory setting
Video cable defective
Replace video cable
The LED light source is no longer
controlled via the camera head
Problems with the communication interface between
the light source and camera control unit
Connect the communication interface cable correctly
Remove the communication interface cable and manually
operate the light source
Camera system is not switching the
light source on/off properly when
the communication interface cable
is connected
Problems with the communication interface between
the light source and camera control unit
Remove the communication interface cable and operate
the light source manually
MAQUET TEGRIS system is not
operating the camera system or
light source connected to the cam-
era system via the communication
interface properly.
Problems with the communication interface between
the MAQUET TEGRIS system and camera control unit
Check the cable connections
Operate the camera system and, if applicable, the light
source manually, and if necessary remove the TEGRIS
interface cable and communication interface cable.
“System error” appears on the
monitor OSD
Internal product error
Restart camera
“System error” appears on the
monitor OSD even after restart
Internal product error
Send the camera to the Service department, see Technical
Service
