Mindray DP-50 Exp Vet, Operator'S Manual

Page: 241 / 343

System Maintenance 16-5

Troubleshooting Table
No. Failure Cause Measure
1
After the
power supply
is turned on,
the power
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.

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