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ThinkPad T420 - Page 45

ThinkPad T420
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Wire
Voltage(Vdc)
Red+2.5to+3.2
Black
Ground
Ifthevoltageiscorrect,replacethesystemboard.
Ifthevoltageisnotcorrect,replacethebackupbattery.
Ifthebackupbatterydischargesquicklyafterreplacement,replacethesystemboard.
Chapter3.Generalcheckout39
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