21
(1) LED
fluorescence of
illumination device
is not bright.
The LED fluorescence
adjustment knob switch is not
turned on.
Turn on the LED fluorescence
adjustment knob switch to bright
enough, rotate the fluorescence
filter block adjustment knob to
“Fluorescence”, and check if the
light source is on.
No power supply.
Check
the
power
cable
connection.
The connection cable is not
connected well when the battery
box is used.
Check the connection cable.
The connection cable is broken.
Replace the connection cable.
Low power supply when the
battery box is used.
Recharge it in time.
(2) LED
fluorescence lamp
is bright but the
view field is dark.
The fluorescence filter block
adjustment knob is at
“Brightfield”.
Rotate the fluorescence filter
block adjustment knob to
“Fluorescence”.
(3) The background
is yellowgreen
when in brightfield
observation.
The fluorescence filter block
adjustment knob is at
“Fluorescence”.
Rotate the fluorescence filter
block adjustment knob to
“Brightfield”.
(4) The background
is yellowgreen and
the image contrast
is bad when in
fluorescence
observation.
The fluorescence flashboard of
condenser is at the positon of
brightfield observation(light
hole).
Pull the fluorescence flashboard to
the positon of fluorescence
observation(Apertures).
5. External Storage Battery Block
(1) The battery box
cannot be charged.
No net power supply.
Ensure normal power supply.
The switch of battery box is not
turned on.
Turn on the switch of battery box.
