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Slide Scanner Repair Manual Calibration and Adjustments
Notes: • If the slide scanner is properly focused, the oscilloscope displays the
waveform signal (Figure 3-12) of the focus and magnification target for one
color channel. Amplitude of all line pair sets should all be uniform.
• If the slide scanner is not properly focused, the oscilloscope displays the
waveform signal (Figure 3-12 of the focus and magnification target for one color
channel. Amplitude of all line pair sets are not uniform.
• Table 3-2 lists and defines the causes of non-uniformity (incorrect focus).
Table 3-2. Non-uniformity causes
Cause Corrective Action
Lens not adjusted properly Adjust lens position.
Slide holder assembly warped Replace slide holder assembly.
Defective lens Replace lens.
Figure 3-12. Both sides of waveform intensified prior to adjustment (if required)
Properly Focused
Improperly Focused
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