Dell E1505 not turning On

Yes! Please replace your power cable.
But try one first,if it works then you are certain you have to buy a new one.
Thanx

remove the battery plug in the adapter again then try to turn it on again,

you have a BIOS bug when hibernation , leave without battery for few days try to turn on with the charger, and if turns on go to the battery settings and disable the hibernation option, later go to dell website and update your system BIOS.
please rate me

when you turn on the comp keep on pressing f8 key and select the last known good configuration and try and let me know

Try to take out the battery and just use the adapter to power it on,
If your done with that then try just using the battery to turn it on, if it still won't give a single light.
If you can borrow an ac adapter for that laptop try it ,
If it still doesn't work. You'll need to replace the motherboard. Just make sure the ac adapter your gonna use is working good.

Have you unplugged the power cord to the LCD? Let it sit for a minute, then try it. ALWAYS buy a UPS and plug any computer devices into it. Doesn't have to be big, a $50 unit will protect it from dangerous voltage surges.

That is usually caused by cheap media. Try a better brand of blank DVD's.

Try taking out the memory and put it back it. I probablly needs to be reset

If you need further help, reach me via phone at https://www.6ya.com/expert/marlo_032032486ea0d83f

ok, all three lights is a hardware problem - this is usually related to CPU problems in the machine but can also be a sign of MB faults too - first up - remove and replace the ram - both sticks - one under the kb and the one in the bottom cavity too - if this doesnt work - i suggest either taking it in for checkup to a qualified service centre or if your feeling confident then remove the palmrest and heatsink, unlock and reseat the cpu and then try starting again

cheers

Try starting without the battery. If the battery has developed a short or is going bad they are notorious for causing a no start with Dell. If it still won't start, then a memory chip may have gone bad, this also will cause a no start with Dell. Dell's machines will not start with no memory, so check it with at least one memory chip in it. Then lastly, the power management chip on the motherboard. It's rare, but they do go out and without warning. This will have to be checked by a tech.