Leica OH4, Service Manual, Page: 253 / 264

Assembly
23 Leica M525 OH4 / Ref. 10 714 368 / Version A
➩
Attach monitor to the VESA 100 mount (20) of the articulated
arm with four M4x10 Allen screws (19).
➩
Connect the DVI monitor cable (12), USB touch control cable
(14) and power supply cable (11) to the monitor as shown.
Fig. 11
➩
Remove the two screws (21) of the cover (22) on the control
unit (23).
Fig. 12
➩
Remove the two screws retaining the control unit (23) and
carefully lift it out of the housing.
➩
Disconnect the 19 V (24) and 12 V (25) terminals.
21
22
23
14
20
11
1
Fig. 13
➩
Connect the power supply cable (26) of the MDRS4 system
unit to the 19 V terminal (24). Loosen the screws, insert the
lead wires (red to 19 V, black to 0 V) and tighten the screws to
clamp them.
➩
If you do not intend to use the included power supply for the
monitor of the MDRS, connect the power supply cable (11) for
the monitor that you have routed into the housing of the OH4
(Fig. 8) to the 12 V terminal (25).
➩
Loosen the screws, insert the lead wires (red/yellow to 12 V,
black/white to 0 V) and tighten the screws to clamp them.
Fig. 14
➩
Reconnect both terminals to the OH4 Master Control
26 24 11
25
23
24 25