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