Scheme acer aspire one 722

[Rivaldo Martins]

a friend has the schema acer Aspire one 722 for me because I am sending precissando motherboard LA 7071P

[elerepair]

Re: Scheme acer aspire one 722

http://lmgtfy.com/?q=LA+7071P

s-manuals.com

[meritosari]

Re: Acer aspire one 722 bios needed

Last night I've managed to fix AO722 with can't power On problem.
Current Amp Drawn on my adapter+ (have been combined with DC Ammeter so it be able to monitor current if display come out, charging proccess, and will shut off if 19V rails was shorted. (features built in on original adapter)
0.0235A

Some reading of measurements :
Resistance to GND in Diode mode (DT9205D) more fast reading than Ohm mode, measurement without APPLYING POWER to the board.
PJ5 (+VSB) = 0.735
PJ1 (+3VALW) = 0.593
PJ3 (+5VALW) = 0.662
PJ2 (+1.1ALW) = 0.292
PJ6 (0.75VS) = 0.132
PJ9 (+1.05V) = 0.290
PJ7 (+1.8VS = 0.382
PJ4 (+1.05VS) = 0.059
PL16 (Apu_NB) = 0.012
PL17 (Apu core) = 0.283
U14 (1,2,3) = 0.961
U15 (1,2,3) = 0.513
U16 (1,2,3) = 0.094

Voltages reading APPLYING POWER

PJ5 (+VSB) = 18.80V
PJ1 (+3VALW) = 3.362V
PJ3 (+5VALW) = 5.11V
PJ2 (+1.1ALW) = 1.205V
PJ6 (0.75VS) = ~*
PJ9 (+1.05V) = ~*
PJ7 (+1.8VS = ~*
PJ4 (+1.05VS) = ~*
PL16 (Apu_NB) = ~*
PL17 (Apu core) = ~*
U14 (1,2,3) = ~*
U15 (1,2,3) = ~*
U16 (1,2,3) = ~*
PQ3 (2) = 4.85V (POK)
U9 (3) = 3.3V (LID_SW#)
PQ13 (1/output) = 0V (PACIN and ACIN) NG*
PQ1 (1,2,3) = ~18V NG*
VMB/BATT+ = 18.81V NG*
SW1 = 17.96V NG*
B+ (PR20) = 18.81V (VOLTAGE PRESENT but Low resistance/0.178 realize after know that PR26 was open, probably kill the battery) NG*
PR26 = open
PU2 (24) = shorted to GND

NG* = Not Good
~* = Can't Switch ON

schematic:
http://********/notebook/acer_aspire_one_ao722

datasheets (to know pin out):
https://cdn.badcaps-static.com/pdfs/...85b179adf4.pdf
https://cdn.badcaps-static.com/pdfs/...d4bcdd1b93.pdf

https://cdn.badcaps-static.com/pdfs/...11df91fa10.pdf
https://cdn.badcaps-static.com/pdfs/...da66a0a8a8.pdf

Solution:

Replace PR26 10ohm / 10_1206_5%
Replace PU2 ISL6251AHAZ
current drawn on my adapter 0.0092A after fix it

Test laptop couple hours, will update soon.
Hope will help you!