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Service manual M695
M695 Fault finding
Doc code 636 718
09/93 3077-HWE
Voltage Action
Reading
Reaction
Possible fault
24V
MICRO
1.Lamp to min.brightness
26V +-5%
Microscope reacts - Check supply-
2.Lamp to max.brightness
20V +-5%
but incorrect
lines of 24V and
3.Lamp back to min.
check PGND -
brightness
page 4-6
Microscope without
Wiring of
any function
microscope
Switch off, bridge swing-
arm with servicecable and
26V +-5%
microscope reacts
Swingarm cable
switch on again
Switch off,
Separate microscope from
26V +-5%
Voltage ok evtl. short circuit
testbox and switch on
in the microscope
Voltage not ok
Control unit
4-5