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2 Start The SP-910
2.1 Battery Installation
The SP-910 is powered by four AA-size alkaline batteries. Do not use rechargeable
nickel cadmium (NiCad) batteries or any AA-size lithium batteries. A set of batteries
typically lasts for three months. When the batteries capacity is low, The SP-910 will
prompt a LOW BATTERY warning. Replace all four batteries to resume operation of
the SP-910 after the battery warning.
The SP-910 battery compartment, shown in Figure 3, is on the back side of the
instrument. Insert a small pad underneath the screen area to make the back surface
level when the instrument is turned upside down. Install batteries as followings:
1. Remove the battery compartment cover by loosening four screws.
2. Insert four batteries into the battery holder as shown in Figure 3. Make sure the
positive battery polarity marker (+) is aligned with the positive marker (+) on the
battery holder.
3. Replace the battery compartment cover, making sure that the sealing O-ring is
lying flat on the battery holder and tighten the four screws.
Figure 3 Replace Batteries
2.2 Description of the Navigational Control Pad
The SP-910 navigational control pad consists of five keys as shown in Figure 1. The
left, right, up, and down keys are navigational keys that are used to select an icon, a
button, or other items in various pages. The center key is the OK key. Press the OK
key on a selected item to launch the action associated with the selected item. The OK
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