Dell E6410 no charging need help urgently. . .

[sonunigam]

Hello all guyz,
I'm facing a problem with Dell Latitude E6410 Which is "No Charging".
When i turn on with battery the Laptop turning on very well but when i turn on via AC Adapter, just fan spin and then all gone. Turning on with battery when i connect the charger there is no indication that charger is connect or not. . . .

I replace following Parts:

PU10 = ISL88731 (Charging IC)
PU902 = CD3301RHHR (Selector IC)

There is anybody who can tell me the exact faulty part????
I'm in a hell please help me out. . .

[sonunigam]

Re: Dell E6410 no charging need help urgently. . .

Hello guyz,
I noticed that When i connect the charger, there is no +3VALW or +5VALW but when i press the power switch the voltages suddenly appear, The fan spin and after a few seconds all gone. Fan is off and the voltages are gone. I've Changed MAXIM 17020E from a working Motherboard but same situation again. . . .
Now, anyone have any idea. . . ??????

[Blacktek]

Re: Dell E6410 no charging need help urgently. . .

take it apart and check board for any blown components, i would focuse on the charging region, check mosfets as well

[vakakush]

Re: Dell E6410 no charging need help urgently. . .

Test these MOSFETS PQ30 PQ31 PQ32
Components on Page 51
check pin 22 ,2, 13 of 8731 IC
check charger_src for 18volts
check gate of PQ30 for volts also test PL14 for volts

[anil94yadav]

Re: Dell E6410 no charging need help urgently. . .

Test these MOSFETS PQ30 PQ31 PQ32
Components on Page 51
check pin 22 ,2, 13 of 8731 IC
check charger_src for 18volts
check gate of PQ30 for volts also test PL14 for volts

i have test pin 2,22 and 13.

2and 22 pin have voltage but 13 pin has no voltage and src voltage also ok but pq30 gate no voltage .what should i do????