Zeiss Axioskop 2 plus Operating Manual page 127

Axioskop 2 plus
Axioskop 2 mot plus
Problem
The 12 V 100 W halogen lamp
does not function although the
on / off switch is in "on"
position.
The 12 V 100 W halogen lamp
of the Axioskop 2 mot plus
does not function although the
on / off switch is in "on"
position.
The 12 V 100 W halogen lamp
flickers, unstable brightness.
Lamp voltage of 12 V / 100 W
halogen lamp cannot be
regulated for the
Axioskop 2 mot plus
B 40-075 e 10/03
CARE, MAINTENANCE, TROUBLESHOOTING AND SERVICE
Troubleshooting
Cause
Line cable not connected to the
line.
12 V 100 W halogen lamp not
installed.
12 V 100 W halogen lamp
defective.
The specified 12 V 100 W halogen
lamp is not used.
Fuses are defective.
Electronics module possibly
defective.
Nosepiece did not click-stop in the
selected position; illumination is
switched off in the interim
positions of the nosepiece.
Reflector turret is in epi-
fluorescence positions, where the
"transmitted light off" status is
stored.
End of average life of 12 V 100 W
halogen lamp.
Incorrectly installed or broken line
cable.
The pins of the 12 V 100 W
halogen lamp are not correctly
inserted into the receptacle.
Since control for light intensity is in
stop position, the light manager
regulates the intensity to the
preset or stored value.
.
Remedy
Connect line cable to the line and
make sure to check the instrument
and line voltage.
Attach 12 V 100 W halogen lamp,
see p. 2-19.
Replace 12 V 100 W halogen
lamp, see p. 2-19.
Use the specified 6 V 12 W
halogen lamp, see p. 1-6.
Exchange fuses, see page 4-3.
Have electronics module checked
by service and replaced, if required
(see p. 4-9).
Correctly click-stop nosepiece in
the required position.
Set the correct reflector turret
position or switch on transmitted
light illumination using the
"transmitted light on / off"
key on the left of the stand;
see p. 3-10 f.
Replace 12 V 100 W halogen
lamp, see p. 2-19.
Connect line cable correctly or
replace it.
Correctly insert pins of 12 V 100
W halogen lamp in receptacle,
see p. 2-19.
Move control shortly out of the
stop position to allow the light
intensity to be set as usual again.
Carl Zeiss
4-7