Service manual M500 N, M520, M525 Description
Doc Code 10 665 751 1-5 08/2007 Gahe
Product history Leica M500N - M520 - M525
Date / event Description: Remark
1997 / Launch M500 N
10 446 481 M500 N optics carrier
10 446 489 control unit
For stand systems OHS1, MS1,
MC1
02/2001 / product change in optics
carrier
10 446 757 M500 N optics carrier
replaces 10 446 481
New emergency drive for zoom
07/2001 / Launch with MS2
10 446 757 M500 N optics carrier
10 446 489 control unit
Additional for MS2 stand system
11/2002 / Launch with OH3
10 711851 control unit for OH3
10 448 019 M500 N optics carrier
(without A/B slide)
Additional for OH3 stand system
04/2003 / Launch with MS3 10 446 757 M500 N optics carrier
10 446 489 control unit
Additional for MS3 stand system
10/2003 / Product change in optics
carrier: New M520 optics carrier
10 448 029 M520 optics carrier
replaces 10 446 757 for MS2, MS3,
OHS1;
10 448 035 M520 optics carrier
(without A/B slide) for OH3
replaces 10 448 019;
Upgrade kit was available:
10 712 316, upgrade kit M500 N to
M520 optics carrier; description 10
665 687;
(10 446 757 to 10 448 070;
10 448 019 to 10448 071)
New illumination unit and new
multifoc objective : More light
30%, increased working distance
from 407 to 470mm, display for
working distance, improved
illumination optics – lead free
glass.
Zoom unit : new diaphragm (10 712
255) for better depth of field -
reduced diameter to 12mm.
New Lemo plug instead fixed CAN
cable – external cable required.
For stand systems OH3, OHS1,
MS3, MS2, MS1, MC1
07/2004 / Launch M520 F40 10 448 029 M520 optics carrier for
F40, 10 448 068 control unit for F40
Control unit without power supply
and with new holder
03/2005 Product change of control
unit: removed power supply
10 448 144 control unit replaces
10 446 489
All stand systems from 03/2005 on
can provide 24V;
09/2005 Product launch M520 C40
and CT40
10 448 029 M520 optics carrier and
new control unit 10 448 169 for C40
and CT40
Control unit compatible, but with
new holder
07/2006 Product change in M520
optics carrier
10 448 029 M520 optics carrier and
10 448 035 M520 optics carrier
with new zoom unit
Paint on zoom lenses as a
diaphragm
