Postagem original de: dragon788 ,
Typically there is a Dell Service Manual for their systems and given that you said it was blinking amber I would imagine it is simply a bad battery. You could try unplugging the battery cable from the board as the system should still boot without it and see if it turns on. If not you could try replacing the DC power jack as that is a small inexpensive ($15 on eBay) part that can fail over time. Thankfully Dell and other manufacturers have gotten smarter about not placing it directly on the motherboard where if the port is impacted the wrong way with the cord plugged in it might kill the motherboard as well.