Test Set M695/M680 - Stock No. 566 152 - Leica WILD M695 Service Manual

Service Manual M695
Doc code 638 718
Contents of test set
Enables defective
assemblies to be
identified
Procedure for fault
location
See section 4
Cause in footswitch?
Cause in microscope of
in XY-gear?
Cause in control unit or
swingarm?

Test set M695/M680 - stock no. 566 152

• Test box, stockno. 566 146
• Service cable M695/M680, stock no. 566 148
• Service handswitch, stock no. 566 147
• Foot- or handswitch
• Swingann
• Control unit MEL61/62 and MEL64/65
• X- or Y-gear MSV138 (M680 only)
• M695/M680 microscope
1. Introduce the test box between the swingarm and the microscope - Plug
connections JP36 and JP37.
2. Inspect the voltages and currents of the POWER SUPPLY as described
in Section 4.
3. Substitute service handswitch for footswitch, observe signal voltages, and
also monitor LEDs on control unit.
4. Observe the signal voltages of the defective function (MICROSCOPE
CONTROL or XY-gear) - as described in Section 4.
5. Separate the microscope or the XY-gear, as appropriate, from the test box,
and observe the signal voltages which flow from the control unit through
the swingann.
6. Use service cable to bridge swingarm, and observe signal voltages from
control unit.
Testset
09/93 3077-HWE