Internal Assemblies — Main Chassis 4: Repair
129
Button Battery
The Button Battery resides on the Processor PCA, next to the Therapy Knob connector, see Figure 97 on
page 122. Make sure you clean the contact clips and the new battery with isopropyl alcohol wipes. The
operating time of the Button Battery is at least 5 years. Replace the Button Battery when it is exhausted.
Preparation
1 Open the case. See “Opening the Case” on page 90.
2 Position the device with the back side down and the Measurement Module to your left.
Removal and Cleaning
1 Remove the battery from the Processor PCA.
a Insert a flat head screw driver at the right of the Button Battery and push the Button Battery to
the left until it can’t be push further, pry the Button Battery out of the battery clip. See
Figure 103.
Figure 103 Button Battery
b Remove the battery from the holder.
c Follow local rules and regulations regarding battery disposal.
Replacement
1 Thoroughly clean the contact clips and new battery terminals with the wipes included in the kit.
2 Insert the new battery into the holder.
CAUTION: Make sure that you install the new battery with the correct orientation. Follow the polarity markings on
the battery holder (under the battery).
3 Close the case. See “Closing the Case” on page 149.
To Complete the Replacement
Run Performance Verification and Safety testing as described in the “Performance Verification”
chapter.
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