15
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 blown
Fuse in camera T 0.5 A L/250 V~ (TA020394)
Wrong video input activated
If the monitor supports several channels: Make cer-
tain the monitor is switched to the channel that is
connected to the camera system
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 cable not connected
Verify that the light cable is connected at the light
source and the light cable input of the endoscope
Light cable defective
Connect new light cable
Light source dimmed down
Turn up the light source intensity
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 the focus adjustment ring of the endo coupler
until there is a sharp image
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 plug
Image fogged
Contaminated or fogged endoscope
Check that the front and rear windows of the endo-
scope and the front window of the endo coupler are
clean; if necessary, clean windows with isopropyl
alcohol (70 %)
Use Aesculap Anti Fog Solution JG910 on the distal
window of the endoscope
Noise or excessive grain in the picture
Brightness enhancement function is active
Increase intensity of the light source
Image too bright or glary
Light metering not at its optimum setting
Press MENU for mode setting and select the opti-
mum light metering mode
Color bar displayed on the monitor
Camera cable not connected to the camera con-
trol unit
Connect camera cable at the camera control unit
Unrealistic color representation on the
monitor
Automatic white balance failed
Start automatic white-adjustment
Monitor color setting misadjusted
Reset to factory setting
Video cable defective
Replace video cable