EDAN SE-1200 Express - Page 50

SE-1200 Series Electrocardiograph Service Manual Inspection and Troubleshooting
- 45 -
1. System Troubles
Conditions
Possible Causes
Actions
When the mains supply is
used, you can not turn on
the electrocardiograph.
① Fuse failure
② Power board or main
board failure.
③ Silicone keyboard
failure
① Replace the fuse
② Replace the power board
or the main board
③ Replace the silicone
keyboard
When the battery is used,
you can not turn on the
electrocardiograph.
① Battery failure
② Main board or power
board failure
③ Silicone keyboard
failure
① Replace the battery
② Replace the main board or
the power board
③ Replace the silicone
keyboard
The electrocardiograph fails
to function.
① Strong interference of
electric networks
② Main board failure
③ The plug-in unit on
the main board or the
power supply failure
① Inspect the power supply
and grounded system.
② Replace the main board
③ Replace or repair the
plug-in unit
Fuse is burned when you
turn on the
electrocardiograph.
① The power supply or
other components
short-circuit.
① Open the
electrocardiograph for
further examination
Fuse is burned when the
device connects to a certain
component.
① This component
short-circuits.
① Replace this component.
2. Display Troubles
Conditions
Possible Causes
Actions
Some characters displayed
on the LCD screen are
missing.
① LCD screen failure.
① Replace the LCD screen
The LCD screen is dark.
① The brightness of the
LCD screen is not
adjusted well.
② LCD screen failure
① Adjust the brightness of the
LCD screen in the Display
Setup window.
② Replace the LCD screen