Pentax 10 - Manual (Page 18)

18
Electrical
Power Supply
Your Teleport is equipped with a power supply, fan, and secondary and
eyepiece heaters. These enhance your observing under certain condi-
tions by quicker temperature equilibration of the primary mirror and
reduction of dew formation problems.
The power supply is in the front of the mirror box. It contains 6 “C” size
alkaline batteries. These are readily available and offer maximum
energy relative to weight and cost. They will run the mirror fan about
100 hours, the secondary heater about 40, and the eyepiece heater
about 20. Keep these numbers in mind for an idea of when you may
need to replace them. A spare set is recommended.
Sliding switches on the face of the power supply turn on the fan and
secondary heat when slid toward the outside of the scope. Always slide
them back toward center when not needed. Leaving either on when
storing your scope will deplete the batteries. The external outlet in the
front of the power supply is for a standard Kendrick eyepiece heater.
Changing Batteries Changing Batteries Changing Batteries Changing Batteries Changing Batteries
1. To remove the power supply, loosen
the four philips screws at the
corners (Fig 25).
2. Tilt the power supply and pull it
out slightly to access the cords from
the mirror fan and secondary
heater, and unplug them.
3. The batteries are held securely in
place by a cover that also stops
reflections. Peel away the side of the
cover opposite where the cables
were plugged (Fig 26).
4. Remove the batteries and replace
with fresh “C” size alkalines, in
proper orientation as shown.
5. Replace the cover and seal its edge
securely. The cover helps prevent
the batteries from being dislodged
during handling or transport.
6. Hold the supply close to the opening
and plug in the cords.
7. Replace the supply and install the four screws.
Fig 25: Power Supply Cover
Fig 26: Removing Batteries
four philips screws