dell latitude d505 dont turn on

[mista]

hi guys i have a problem with a dell latitude d505 when i put ac charger to the 220 v plug the green light is on and when i pluged after into ac charger from laptop the green light turn off immediately i test with other charger but it s same problem i think there is a short on motherboard but how can i test it someone has the same problem?

someone has wiring diagram for this laptop

thanx a lot for help and sorry for my bad english

[mista]

Re: dell latitude d505 dont turn on

nobody for help? thanx a lot

[keeney123]

Re: dell latitude d505 dont turn on

See if this link is the correct schematic for your machine.
http://kythuatphancung.vn/download/d...chematics.html

You can get the service manual directly from Dell for free. That will tell you how it comes apart and offers a few other things.

[mista]

Re: dell latitude d505 dont turn on

hi keeney123 thanx a lot for help i will check

[mista]

Re: dell latitude d505 dont turn on

hi guys i m newbie about schematic and i have some question about smd capacitance how can i check if there is short on the smd?
if someone else has the same problem thanx in advance for help

[JaroTech]

Re: dell latitude d505 dont turn on

Hi, remove PR36 and verify if you still have the short circuit.

[mista]

Re: dell latitude d505 dont turn on

hi jarotech thanx a lot for your answer please can you explain me how verify a short please i m newbie and would like to learn thanx for help

[JaroTech]

Re: dell latitude d505 dont turn on

Can you unsolder (remove) the resistor R36?

[mista]

Re: dell latitude d505 dont turn on

yes i m able to do that without problem friend but i don t have a lot of knowledge about electronic so if i understood pr 36 this is a resitance 36

[JaroTech]

Re: dell latitude d505 dont turn on

Yes, it should be written PR36 beside the resistor on the motherboard, remove it, connect the adapter and look if the green light goes off on the adapter.

[mista]

Re: dell latitude d505 dont turn on

hi friend thanx a lot for your response i will try to do that and report thanx a lot for help