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Appendix
Troubleshooting
Problem
No images come out.
The image appears
dark.
Highlight area of
images is too bright.
An image
disappears during an
examination.
[Note] Reset: Turn off the processor and the light source, and wait for at least 5 seconds. Turn on the processor and the
light source again, and then light the lamp by pressing the Lamp button.
Appendix-8
If the endoscope should fail during use, follow these instructions to troubleshoot it.
Cause
1) The cart, monitor or processor is unplugged
from the main outlet.
2) The cart, monitor or processor is off.
1) The endoscope is not connected completely.
2) The brightness level is approaching the
minimum level.
3) The iris mode is at "PEAK."
4) Dirt adheres to the lens of endoscope.
5) The shutter speed is "HIGH."
6) The maximum light amount is limited with
the light save function.
7) Iris timer is activated.
1) The brightness level is approaching the
maximum level.
2) The iris mode is at "AVE."
1) The endoscope connection is incomplete.
2) The system has malfunctioned due to such
as static charges.
3) The video signal cable has shorted out or
broken.
4) The imaging section is damaged.
Remedy
1) Plug the cart, monitor or processor into the
main outlet.
2) Power on the cart, monitor or processor.
1) Connect the endoscope correctly.
5.3 "Connecting Endoscope"
2) Set the brightness level to approximately 0.
VP-4450HD 5.6 "Adjusting the Brightness"
3) Set the iris mode to "AVE."
VP-4450HD 5.12 "Switching the Iris Mode"
4) Supply water to the distal end of endoscope
to remove dirt.
5) Set the shutter speed to "NORM."
6) Turn OFF the light save function of light
source.
7) Release the timer by pressing the FR switch
of endoscope.
[Note] If the image still appears dark even
after performing 4) to 7), slowly pull out the
endoscope and clean the distal end.
1) Set the brightness level to approximately 0.
VP-4450HD 5.6 "Adjusting the Brightness"
2) Set the iris mode to "PEAK."
VP-4450HD 5.12 "Switching the Iris Mode"
1) Reconnect the endoscope.
5.3 "Connecting Endoscope"
2) 3) 4)
Reset the processor and the light source.
If the image is still not displayed, turn the
processor and the light source off, and then
straighten the bending portion to unlock
and release the angle knobs. Pull out the
endoscope slowly.
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