72
8 Troubleshooting
Common problems
Problem
Cause and recommended action
Illumination does not light.
The LIGHT button (
) is not on.
→
Turn on the LIGHT button (
).
The insertion tube's distal end or the optical adapter is dirty.
→
Wipe with a clean piece of gauze or a cotton swab.
Or use a brush to remove foreign matter ("Cleaning the distal end" (P. 69) or
"Cleaning the optical adapter" (P. 69)).
The illumination is dim.
The optical adapter tip is dirty.
→
Wipe with a clean piece of gauze or a cotton swab.
The optical adapter cannot
be attached to the insertion
tube.
A foreign object is stuck to the screws.
→
Wipe with a clean piece of gauze or a cotton swab.
The optical adapter in use is not a designated optical adapter for this system.
→
Use the designated optical adapter.
The installation procedure is not correct.
→
Reinstall using the correct procedure ("Attaching the optical adapter" (P. 15)).
The optical adapter cannot
be removed from the inser-
tion tube.
The nut of the optical adapter is rotated in the wrong direction.
→
Reinstall using the correct procedure ("Attaching the optical adapter" (P. 15)).
Message
Cause and recommended action
HIGH TEMPERATURE (DISTAL END).
PLEASE IMMEDIATELY PULL OUT THE
SCOPE.
The message prompts you to stop inspection because the self-check
function was triggered.
→
Immediately pull the insertion tube out of the observation object.
●
This message will appear before the atmospheric tem-
perature of the distal end reaches the maximum operating
ambient temperature.
NOTE
HIGH TEMPERATURE (MAIN UNIT).
PLEASE TURN OFF THE POWER.
The message prompts you to stop operations because the inside of
the main unit was too hot and triggered the self-check function.
→
Terminate inspection, allow the instrument to cool down, and then
turn power back on again.
OVER CURRENT (ARTICULATION MO-
TOR).
PLEASE TURN OFF THE POWER.
The insertion tube is overloaded and the self-check function was trig-
gered to prompt termination of inspection.
→
Extend the insertion tube as much as possible to reduce the loop
amount, and turn power back on without operating the [ANGLE]
joystick.
