
Chapter 5 Troubleshooting
65
EVIS EXERA TJF TYPE 160VR OPERATION MANUAL
Suction
Image quality or brightness
Irregularity
description
Possible cause
Solution
The suction is absent or
insufficient.
The biopsy valve is not
attached properly.
Attach it correctly.
The biopsy valve is
damaged.
Replace it with a new one.
The suction pump is not
set properly.
Adjust the suction pump’s setting
as described in its instruction
manual.
The suction valve is
damaged.
Replace it with a new one.
The suction valve is
sticky.
The suction valve is
dirty.
Remove the suction valve.
Reprocess the suction valve and
attach it again.
The suction valve is
damaged.
Replace it with a new one.
The suction valve
cannot be attached.
The suction valve is
damaged.
Replace it with a new one.
An incorrect suction
valve is used.
Use a correct suction valve.
Liquid leaks out from
the biopsy valve.
The biopsy valve is
damaged.
Replace it with a new one.
The biopsy valve is not
attached properly.
Attach it correctly.
Irregularity
description
Possible cause
Solution
There is no video
image.
Not all power switches
are ON.
Turn ON all the power switches.
An image is not clear.
The objective lens is
dirty.
Feed water to remove mucus, etc.
An image is excessively
dark or bright.
The light source is not
set properly.
Adjust the light source’s setting as
described in its instruction
manual.
An image is abnormal.
An incompatible video
system center is being
used.
Select a compatible video system
center.
An incompatible light
source is being used.
Select a compatible light source.
Содержание EVIS EXERA TJF-160VR
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