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About jumper J108 for the lithium battery
J108 is a jumper switch to supply the lithium battery voltage to the main board. Please note that the power supply of the real-
time clock is stopped and the time setting of the system is reset to its initial state when this jumper switch is turned off. In this
case, a red alarm LED in the front panel lights up by the battery back alarm, displaying the state.
Caution:
When the jumper J108 is turned on in the power off mode, immediately turn on the power to the main board to supply 3.3V to
the CPU. Once the power of the main board has been turned on, the main power supply might be off.
As stated above, turning on J108 in the power off leads to a more rapid drain of the lithium battery.
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KX-TVM200E / KX-TVM200NE
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