La-5892p B+ 10 V need help

[gcomputers]

This laptop coming with non charge issue.
Model la'5892p

Please see page 38
PQ51 - pin 1-8 =19v
PQ52-pin 1-4 =19v
pin 5-8= 10v here is the problem from here all b+=10v
Another thing PQ62 when i plug adapter pin 123-5678 are shorted between them and have 10v.
replaced all this mosfet replaced with used Isl 6265 but the same problem b+ 10v.
with battery inserted led of charge blink .
i m totally confused any help please

[gcomputers]

Re: La-5892p B+ 10 V need help

Any help

[cyberhack]

Re: La-5892p B+ 10 V need help

PQ51 pin 4 and PQ52 pin 4 are connected has to go low for the volts out
and disconnect PL45 to test.I have had PC248 short in the past.

[gcomputers]

Re: La-5892p B+ 10 V need help

PQ51 pin 4 and PQ52 pin 4 are connected has to go low for the volts out
and disconnect PL45 to test.I have had PC248 short in the past.

Thanks for your reply , i replaced pc248 and pr 354 but no change 10v remain again. i have similar motherboard functionaly and on pin 4 of PQ51 , PQ52 have 9 v. i m totally confused , any suggestion please

[gcomputers]

Re: La-5892p B+ 10 V need help

5 minuts for me please

[highpulse]

Re: La-5892p B+ 10 V need help

g computer , there is nothing to be confused here , your gate is with 9 volts (if P channel , that will allow 19 volts to pass) if its N then it will pass only whatsoever you will have on the source

[highpulse]

Re: La-5892p B+ 10 V need help

so , attention , as you says , if you insert power you will have continuity between 123 5678 , well simple because there is gate open that make continuity . but now haing b+ = 10 volts is simple . your machine is detecting that its working only on battery mode . so it will give you only a B+ of the residual you got on the battery or battery circuit .

your main problem here is that switching is not working here .and for my experience on does motherboard does acer 5742 shit... eheheh they are real pain in the ass , and problems is near battery socket , you will find a few transistors there , and they are culprit

so chek following , by this order . remove outside board and test one by one if they work with active and low gate and if they DO the work they shouldd DO

pq61 - pq57 - pq53 - pq51 and pq52 ..
chek ACON PACIN ACOFF