IBM N6270, Hardware And Service Manual

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Procedure
1.
Locate the RTC battery on the right side of the controller module as you slide
the controller module out of the chassis. It is the battery in the vertical holder
near the boot device holder.
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RTC battery and holder
2. Grasp the battery with your thumb and forefinger, gently tip the battery
toward the center of the controller module, and then gently lift the battery out
of the holder and set it aside.
Note: Note the polarity of the battery as you remove it from the holder.
Installing an RTC battery
You must follow a specific sequence of steps to install a Real-Time Clock (RTC)
battery.
Procedure
1. If you are not already grounded, properly ground yourself.
2. Remove the replacement battery from the antistatic shipping bag.
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Figure 34. Removing the RTC battery
Replacing N6200 series system devices
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