Leica OH4, Service Manual, Page: 217 / 264

What to do if...?
75 Leica M525 OH4 / Ref. 10 714 367 / Version -
Error messages on the control unit
Fault Cause Remedy
"Check lamp 1/2" Lampe 1/2 is defective. Check and replace defective
lamp 1/2 after surgery.
"Device not present" A cable connection has loosened Contact your Leica represantative.
or is defective.
"No Connection to MDRS3" A cable connection has loosened Chek connection cable.
or is defective.
"Rear load too high" Mounted accessories cannot Reduce Load on back side of
be be balanced. optics carrier.
"Front load too high" Mounted accessories cannot Reduce Load on front side of
be be balanced. optics carrier.
"Rear load too high" Mounted accessories cannot Reduce Load on back side of
be be balanced. optics carrier.
"Front load too high" Mounted accessories cannot Reduce Load on front side of
be be balanced. optics carrier.
"Left hand side load too high" Mounted accessories cannot Reduce Load on left side of
be be balanced. optics carrier.
"Rught hand side load to high" Mounted accessories cannot Reduce Load on right side of
be be balanced. optics carrier.
"Too many counterweight wheels Wheel counterweight used on the Change wheel counterweight on
at D axis" D axis cannot compensate for the the D axis (see page 34)
mounted accessories
"Too less counterweight wheels Wheel counterweight used on the Change wheel counterweight on
at D axis" D axis cannot compensate for the the D axis (see page 34)
mounted accessories
"Illumination unit not closed" Access hatch for lamp inserts Close access hatch and lock
is not closed.Pushbutton for with rotary knob.
illumination flashes.
"Microscope-Device-Controller Contact your Leica represantative.
not present"