Control Unit; Error Messages On The Control Unit; F40 Stand; C40 Ceiling Mount - Leica M844 User Manual

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What to do if...?
Two-in-One control unit
Fault: There is no picture in the display
Cause 1:
The touch panel is in video mode, but is not receiving
a video signal.
Cause 2:
A cable connection has loosened.
Cause 3: The display is defective.

Error messages on the control unit

Fault:
• Check Main Lamp 1
• Check Main Lamp 2
• Check Slitlamp
Fault:
Check Ottoflex
Fault:
• Compact Stand Brake Controller not present
• Zoom-Lamp Controller not present
• Focus-Tilt Controller not present
• XY Controller not present
• Microscope Device Controller not present
(Command Interface)
• Microscope Device Controller not present
(Config Interface)

F40 stand

Fault: The surgical microscope does not move, or requires
undue force.
Cause 1:
A cable is jammed.
Cause 2:
The transport lock has not been released.
Cause 3:
A brake is not released.

C40 ceiling mount

Fault: Leica M844 C40 or Leica M820 C40 rotates.
Fault: The Leica M844 C40 or Leica M820 C40 drifts up or down.
64
Leica M844 – Leica M820 / Ref. 10 713 294 / Version I
Fault remedy:
➩ Switch to control unit mode (see page 40).
Fault remedy:
➩ Check to ensure that the cable connections are tight.
Fault remedy:
➩ Contact your Leica representative.
➩ You can still work with your Leica microscope.
All functions can still be operated using the
footswitch/handswitch.
Fault remedy:
➩ Switch to the second lamp using the corresponding
quick-change lamp mount.
➩ Replace the defective bulb as soon as possible.
Fault remedy:
➩ Replace the defective bulb as soon as possible.
Fault remedy:
➩ Contact your Leica representative.
Fault remedy:
➩ Move the jammed cable to another position.
Fault remedy:
➩ Release the transport lock (see page 36).
Fault remedy:
➩ Contact your Leica representative.
Fault remedy:
➩ Contact your Leica representative.
➩ Have the adjustment of the suspension checked and
readjusted.
Fault remedy:
➩ Contact your Leica representative.
➩ Have your Leica service technician slightly brake the
corresponding axis using the built-in drift brakes.

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