Leica OH4, Service Manual, Page: 197 / 264

Use
55 Leica M525 OH4 / Ref. 10 714 367 / Version -
The Maintenance menu
Hour meter for the bulbs (Lamp History)
On this screen, you can view the operating hours of xenon
lamp 1 and xenon lamp 2.
Whenever you replace a bulb, reset the bulb's hour
meter to 0 by double-clicking the "Reset" button.
Check switches
On this screen, you can test the footswitches/handswitches
and CAN handles you are using.
➩
Select the connection you are using in the right upper options
menu.
➩
You can scroll forwards or backwards in the list by clicking
the arrowheads.
➩
Select the footswitch/handswitch or CAN handle to be tested
in the right lower options menu.
➩
You can scroll forwards or backwards in the list by clicking
the arrowheads.
➩
Press all of the keys, one after the other, of the
footswitch/handswitch or CAN handle you want to test.
If the key you have pressed is functioning properly, a green dot
appears on it on the display. The comment "Tested" appears in
the caption field of the key.