Turns off after few seconds with batery or with the power cord only. never turn on the monitor, just fans sound for 5 seconds and stop rotate and the start blue botton light remains on.
Check the battery is charged first and that power is getting to the laptop by the DC Jack. You can test this by setting a multimeter to 20V DC and touching one probe to the inner part of the DC jack and the other probe to the Outer (earth) of the DC jack (red to inner black to outer). I'm assuming the fuse in the plug of the adaptor is ok...
If there is power getting to the DC jack, check the connection to the DC jack socket on the motherboard, if it feels sloppy or loose, this is where the problem may be.
If the fit is tight and the AC adaptor is supplying power, you could have a ram issue. Romove each ram module in turn and try to see if the laptop boots then, if one stops it booting, it needs replaced.
Failing this, you could have a fault on the motherboard which will need technical investigation
Jan 02, 2011 |