Leica M500 N Service Manual page 72

Inspection
07/2007 Gahe
Step Description
3.7 Press focus down button at left and right
handle.
3.8 Observe movement of focus
3.9 Turn emergency drive knob of focus.
3.10 Press switch for laser application.
Zoom functions
3.11 Press zoom up button at left and right
handle.
3.12 Press zoom down button at left and right
handle.
3.13 Observe movement of zoom.
3.14 Turn emergency drive knob of zoom.
Controller
3.15 Determine the max. focus/zoom encoder
positions (diagnostic
functions/Microscope: max. encoder
positions)
3.16 Read out controller parameter (diagnostic
functions/microscope/show parameters
in control unit);
7-6
Required results
Working distance decreases to 207.
M520 & M525:
WD indication on optics carrier is
equivalent to WD display on control unit.
Uniform focus movement at both, min and
max speed (32sec....8sec).
Display of WD on control unit and on optics
carrier indicate changes from turning knob.
Yellow LED beside of the switch shines.
Handle switches and arrow keys of control
unit cannot alter working distance
anymore.
Magnification increases.
Magnification decreases.
Uniform zoom movement at both min and
max speed (12sec...5sec).
Display of magnification on control unit
indicates changes from turning knob.
Both motors, zoom and focus, travel to the
maximum position and return.
Optics carrier: (M500N or M520N*)
SW version:
Voltage supply:
(24V +/- 0.6V)
Zoom encoder min/max:
(min=1000 / max=28400 nominal)**
Focus encoder min/max:
(min = 1000 / max=24200 nominal)**
* if M525 optics carrier is connected, it shows M520N
** no tolerances defined
Service manual M500 N, M520, M525
Doc Code 10 665 751
O.K. Fails