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Old ac power jack problem on INSPIRON 5150 -need system board repair
Well I've been thinking about repairing the board for sometime now and now I've just finished it : I dis assembled all the parts according to the instruction manual to
get to the motherboard. when I did, I found out there were few AC contacts on the board need re soldering because I could see cracks in the old solder.
I kept track of all the parts and screws,so I knew how everything would go back together again. I re assembled all just like the manual,took care of
the safety instructions like preventing static damage and so forth. Plugged it in and the yellow and green led lit up blinking which means it's charging and seems normal but when I push the power button it starts up by making the regular noise but after like 20 seconds it shuts down the power!! I did this 3 times and it shuts
down again. my question is: Is there any trouble shooting sequence for this kind of assembling that I can follow and figure out what went wrong? I'm just
so disappointed that don't know what's next or this is the end of it!!?