Mindray DP-20 - Troubleshooting; Troubleshooting Table

System Maintenance 16-5
16.2 Troubleshooting
If any persistent system malfunction is experienced, e.g. an onscreen error message, blank
imaging screen, absent menus, please refer to the following table below. If the failure cannot
be eliminated, please contact Mindray Customer Service Department or sales representative.
◼ Troubleshooting Table
No.
Failure
Cause
Measure
1
After the AC
power input is
connected, the
AC power
status
indicator does
not light on.
◼ Abnormal power system
or incorrect connection
of the power cord.
◼ Verify that the plug has not
become loosened or
dislodged from the back of
the system.
2
When the
power
indicator of the
monitor is on
and image is
blank.
◼ The interval between
turnoff and restart is too
short – wait a minimum
time of 20 seconds.
◼ The monitor brightness
or contrast may be
improperly set (use
<Fn>+ Direction key to
adjust).
◼ Turn off the system and
wait a minimum time of 1
minute, then restart the
system.
◼ Adjust the Contrast
3
The monitor
displays the
characters but
no images.
◼ The transmission power,
overall gain or TGC
controls are improperly
set.
◼ Verify that a probe is
connected and / or fully
connected.
◼ The system is in the
frozen status.
◼ Adjust the transmission
power, gain or TGC
control.
◼ Ensure proper probe
connection.
◼ Unfreeze the image.
4
The image
quality has
degraded
◼ The exam mode is not
correct.
◼ The settings of the
image post processing
are not correct.
◼ The image presets are
inappropriate
◼ Select an appropriate
exam type.
◼ Adjust the settings of the
image via post processing
or reset the post
processing to the default
values.
◼ Reset the factory default
setups.
5
The button is
responseless
with the
system
buzzing
◼ Button blocked by too
much dirt
◼ Check the control panel for
the button being blocked
and press it several times
to release it.
◼ Clean the button