Zeiss Stemi 305 - Troubleshooting

Stereo microscope APPENDIX
Stemi 305 Troubleshooting ZEISS
01/2015 435063-7044-001 41
6.2 Troubleshooting
Description of fault Cause of error Troubleshooting
Stereo microscope illumination
cannot be switched ON.
Power supply interrupted.
Power switch not switched ON
Check or establish connection to
power supply. Switch power switch
on back of stereo microscope ON.
Power unit faulty. Replacing the power unit, see
Section 5.2 on page 35
Vertical reflected-light illumination is
not lit.
Power supply cable RJ 12 not
plugged in.
Insert RJ plug correctly, see Section
3.2 or 3.3 on pages 21 and 23
Additional reflected-light
illuminators are not lit.
Power supply cable RJ 12 not
plugged in.
Reflected light not switched ON or
dimmed.
Insert RJ plug correctly, see Section
3.2 or 3.3 on pages 21 and 23
Press and turn knob Fig
. 20/1
several times to switch reflected
light ON and to increase its intensity;
see Section 4.2 on page 28
Transmitted-light illuminator does
not light up
Transmitted light not switched ON
or dimmed.
Press and turn rotary / push-button
Fig
. 25/2 to switch illumination ON
and to increase its intensity; see
Section 4.3 on page 32
Transmitted light not connected. Open stand K EDU or K LAB and
according to Section 5.2.3 on
page 37
connect the plug-in connectors of
the LED illumination.
Transmitted-light illuminator dirty or
control lever cannot be actuated.
Liquids or foreign matter in the
transmitted-light unit.
Open and clean stand K EDU or K
LAB and eliminate foreign matter
according to Section 5.2.3 on
page 37
Microscope mount moves down by
itself.
Focusing drive too easy to move. Set ease of motion of the focusing
drive, see Section 3.2 on page 21
Should any other faults occur or should you have queries regarding troubleshooting, please contact your
regional ZEISS representative.