Hello i Have a sony vpcee34fx [DA0NE7MB6D0 REV:D] it does not power on i chek the 3.3 v on the power sw and bios and after that program the bios but it does not power on again what is the next step to solve the problem thanks.

Попробуй так.
In English:

0. When BIOS & EC-firmware 100% are working
1. When EC power is present, his quartz working and EC reading the bios data (look data exchange on BIOS chip an oscilloscope)
2. When ACIN = 3.3V
3. When LID_SW# = 3.3V
4. When EC drop RESET from SouthBridge, т.е. EC_RSMRST# = 3.3V
5. When by pressing of the power button the signal ON/OFFBTN# falls to zero and the same signal is broadcast in PBTN_OUT#
6. When from the SouthBridge signals PM_SLP_S3# and SLP_S5# are drop, i.e. voltage on them will be 3.3V
Under these conditions EC should give command for start.
(с) Ciber SLasH

I check the voltages again I found that IO release 3.3v RVCC-ON and i check it on the pin3[EN] pu22[oz8116][RVCC 1.1v]
but pu22 can not release 1.1 RVCC i change pu22 but it does not work
this mean the main is ok until power step 2 but PM_SLP_S3 [step 3] does not do the job for more information please check the scheam
Thanks-its realy force

!	MSF113 писал(а):
	Use more "," and "." in post. Too hard to understand you.

What would you need to do to locate the fault measurements on EC pins (U13):
Before pressing the On button pins 4, 10, 95
While pressing the On button pins 108, 15
After pressing the On button pins 102, 17, 96, 106
This is assuming that oscillates Y2, Y7.
Check.

Excuse me for my bad english, I learned it new.
Thanks orbit. The problem was about south bridge. s3