User`s guide

Troubleshooting
Voyager
™
Biospectrometry
™
Workstation User’s Guide 8-9
8
Flat signal on oscilloscope
or in spectrum window for
sample and matrix region
Vertical scaling
needs adjustment
Adjust. See Section 5.3.5,
Understanding Digitizer
Settings.
Spectrum window
needs adjustment
See Section 4.3, Using the
Spectrum Window.
Laser set to 0 Adjust laser by using the
slider controls on the Manual
Laser/Sample Positioning
control page.
Laser beam is not
irradiating sample in
the sample position
Adjust position of sample
position using the Manual
Laser/Sample Positioning
controls.
Signal is offscale Adjust Vertical Offset. See
Section 5.3.5, Understanding
Digitizer Settings.
Problem with
electronics
Call PerSeptive Biosystems
Technical Support.
Saturated signal in
sample and matrix region
Laser intensity too
high
Adjust laser by using the
slider controls on the Manual
Laser/Sample Positioning
control page.
Poor crystallization on the
sample plate
Sample
contaminated
Clean up sample. See
Section 3.1.5, Sample
Cleanup.
Table 8-1 Spectrum Troubleshooting (Continued)
Symptom Possible Cause Action