Vinten Radamec SP-2000 Pedestal - Manual (Page 80)

SP-2000/X-Y Maintenance And Repair
4-14 User Manual
Cleaning The Target Sensors
For consistent, accurate targeting, it is important to keep the sensors clean. If a
pedestal has to be commanded to target two or three times before it succeeds, it
is likely that the sensors need cleaning.
The frequency of cleaning depends on the general cleanliness of your studio -
every 3-4 weeks is common, less frequently in a very clean studio. Monitor the
targeting performance over the first couple of months of use. If targeting starts
to be erratic after say four weeks, you should clean the sensors every three
weeks. If ten weeks go by before targeting is erratic, clean the sensors every 8
weeks.
The sensors must always be cleaned before sensor calibration (described later).
1. Remove the three wheel covers as described in the previous section.
2. Locate the sensor assemblies - each is at the base of the pedestal on the end
of a counter balanced arm that is activated by a solenoid. The location of
the East sensors are shown below and the North and West sensors are
shown opposite
3. The sensors are recessed inside the sensor block and do not touch the floor
directly. Use a dry cotton swab (Q-Tip) or one moistened with 91% pure
(or greater) Isopropyl Alcohol (typically used for cleaning of VTR heads)
to clean the three sensors on the East sensor assembly.
4. Repeat for the North and West sensor assemblies.
East Sensors