Search found 3 matches

by hongjun
Tue Nov 16, 2010 11:20 am
Forum: ThinkPad T2x & T3x Series
Topic: T23 works with battery but not AC power adapter
Replies: 6
Views: 1301

Re: T23 works with battery but not AC power adapter

I checked the output voltage, a bit heigher than 16V, about 16.25V. The reason I got the laptop messed up, is when I tried to replace memory, but didn't remove the battery. I smelled smoke out of the board somewhere.
by hongjun
Tue Nov 16, 2010 10:38 am
Forum: ThinkPad T2x & T3x Series
Topic: T23 works with battery but not AC power adapter
Replies: 6
Views: 1301

Re: T23 works with battery but not AC power adapter

Checked all inductors top and bottom. Seems all right. Small resistance. And also touched the pads with solder iron. No luck. Since laptop works on battery, and it charges. Only thing is that it beaps and shuts down whenever AC plugs in. I suspect it may be a regulator went blown. I am thinking of r...
by hongjun
Tue Nov 09, 2010 9:50 pm
Forum: ThinkPad T2x & T3x Series
Topic: T23 works with battery but not AC power adapter
Replies: 6
Views: 1301

T23 works with battery but not AC power adapter

Hi, If I plug in the AC power with T23 off, it charges the battery. T23 only powers on battery. With AC power plugged, press the power button, lights flash and T23 beeps, then goes out. Press the power button again, nothing happens. Unplug the AC power, and press power button, nothing happens. Have ...

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