Spectra Precision FOCUS 35 - Page 399

Chapter 6
Adjustment and Verification
P/N 79000035_SM, Version 1.5 6 - 145 Focus 30/35 Service Manual
Fig. 6-112 Hz- and V-Excentricity
Check diagrams on tab
pages Hz-/V-
Amplitude:
Press tab page
Hz-
Amplude
and V-
Amplidude
, see Fig. 6-113
on page 6-146 .
The diagrams
should be above
the red min. line
The average of
diagrams for
CIS0 and/or
CIS1 is below
min. line.
-Drop down
could be an
indicator for dirt
on encoder disc.
Select CIS1 or CIS0
to separate the
diagrams.
- Check the
corresponding LED
illumination of the
sensor.
-Clean the encoder
disk and CIS sensor.
Item Performance Action Result Notes
max
min
max
min
Spike
Spike
Spike
200 gon