Troubleshooting

All Leica instruments are manufactured and tested with extreme care. If you do have cause for complaint, however, please do not try to repair the instruments and their accessories yourself. Contact your national agency or our central servicing department, the Technical Service in Wetzlar, direct. Postal address:

Leica Microsystems Wetzlar GmbH

Abt. Technischer Service

Postfach 20 40

D-35530 Wetzlar

Tel. (0) 64 41-29 28 49

Fax (0) 64 41-29 22 66

Apart from preparation errors (e. g. staining or wrong specimen vessel), which cannot be dealt with in this manual, there are two main categories of error:

Mechanical errors and electric errors.

Mechanical errors

We already mentioned possible mechanical errors in the “Installation” and ”Operation” chapters.

These mainly involve errors in inserting con- trasting equipment, maladjustment of light rings or the wrong condenser height setting.

We described all these possible errors in pre- vious chapters.

Therefore, if you are not satisfied with the quality of the image, read the relevant sections of the manual.

Electric errors

These may be:

1.The lamp on the microscope does not work.

2.There is no power.

Check the following possible causes:

The on/off switch does not respond (no illumination):

Check that all mains cables are properly con- nected.

Make sure that there is power at the sockets you are using and that they are not deactivated by a mains switch.

After you have ruled out the possibility of all possible external sources of error, check that a fuse of the Leica DM IRB or power unit is not defective.

Replacing the mains fuse on the microscope

n. b.:

Call the Technical Service!

The integrated transmitted light lamp does not respond.

Make sure the plug of the lamp cable is firmly plugged into the corresponding socket on the back of the DM IRB stand.

The halogen lamp may be faulty.

105

Page 105
Image 105
Leica DM IRB manual Troubleshooting, Mechanical errors, Electric errors, On/off switch does not respond no illumination