Leica Microsystems DM2000 Manuel D'utilisation page 147

Problem
Fluorescence
The image is completely dark (no fluorescence).
The fluorescence is too weak.
Cause/Remedy
Open the shutter (→ p. 61).
Check the antigen-antibody combination.
Insert a new lamp (→ p. 26ff).
Center the lamp (→ p. 39ff)
Insert a new lamp (→ p. 26ff).
11. Trouble Shooting
69