EDAN M3 Service Manual

M3 Vital Signs Monitor Service Manual
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6 Troubleshooting
In transportation, storage and use of monitor, various factors such as unstable network voltage,
changing environmental temperature, falling-down or impact, component aging may all result in
monitor failures and therefore affect normal application of the device. In failure conditions,
professional personnel with the experience of repairing electronic medical devices should
perform component-level upkeep for the failure classification listed in the table below.
Component-level upkeep means based on analyzing, replacing or trial-operating the component,
we can pinpoint the failure on a certain component of the device, such as power board, Main
control board, LCD assembly, measuring cable or parameter module, etc. Repair of only some
components means component-level repair. The repair operation must be conducted by a service
engineer with abundant experience and with the assistance of special equipment and in specific
environment and conditions.
6.1 Device Failures
Failure Possible cause Solution
Fuse damage (If has ①
fuse on)
Replace fuse①
Power damage② Replace power board②
No display after power-on,
power indicator light is not
on or fan does not run.
③ Component short-circuit ③ Anchor the short-circuit
component
No display after power-on
or black screen during
operation, however, power
indicator lights on and fan
runs normally.
① Main control board
failure or display failure.
① Refer to the information
about confirming display
failure.
Characters are displayed
normally, however
waveforms are displayed
intermittently.
Data communication ①
error between Main control
board and parameter
module
① Based on error prompt,
replace Main control board,
keyset or parameter module so
as to confirm the failure.
An operation or
measurement function is
disabled.
①Main control board or
corresponding component
damage
Examine ① Main control
board and corresponding
components
① Moment intensive
interference of network
① Check power supply and
grounding system
Poor performance of ②
power board
Replace power board②
Device is occasionally
stoned.
Poor performance of ③
Main control board
Replace ③ Main control board

EDAN M3 Specifications

General

Brand	EDAN
Model	M3
Category	Monitor
Language	English