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Ac power doesnt work only in battery mode,adaptor output is ok

\015 Ac power doesnt work only in battery mode, Ive measured the adaptor voltage 19.4VDC which is ok please need your assistance\015

Answers :

Sounds like the power connector (where you plug into pc) is going bad. try twisting / wiggling connector. pause for a few seconds between twists to give circuitry chance to reconize power input. sometimes there is a green led that will light up when power adaptor is inserted. you can use that as a reference.
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