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Ok I’ll do my best it’s a learning process for me thank you for your help

No they aren’t soldered. I testing chips on the board I remove the 5v,3.3v driver and I still have .14v So I’m gonna see if the audio driver is pulling the line down. I have a feeling it’s one of these chips. Do you think I’m on the right track?

Well since I have L6995, isl6295,U5010 still of the board I get nothing on pin 1 of L6995 At ppvin_g3h_p3v42g3h =16.54v and 16.54 at (r6995 which is also ppvin_g3h_p3v42g3h. 3.7v at Pin2 p3v42g3h_ton) c6991 pin 1 3.72 p3v42g3h_fb = 3.7v

I removed L6995 and on Diode mode pin 1 .595v on pin 2 .14v I removed u4650 cleaned and tested still have .14v on pin 2 at L6995 inspected j6955 it’s in pristine condition :(

The gmux was getting really hot. I removed the u7000 first. then I removed U5010 but I Have not removed the smc. J6955 has no visible damage. But I will further inspect it. I will lift on leg of L6995 and see on which pin it remains on. thank you for your help

Ok I’m gonna ask this I’m just lightly heating the cpu/pch at 180 degrees at a moderate air speed and don’t remove underfill and remove whatever crap is accumulated under it. Did I understand you correctly ?

Hi, I have a board that has a short on pp3v42_g3h line it’s .14v in diode mode This is what I have done so far I remove the isl, replaced both usb controllers that were shorting 5v line. I still have a short on 3.42 I have .14v in between r5070 Pin1 and Pin 2 r5000 Where would be a good starting...

Oh ok cool I’ll reheat or change it

:/ ok I’ll buy a new External display port from Best Buy. I’m sorry but may I ask I’m not in front of a board view At this moment but is u9600? the isl68?? for gpuvcore that’s next to gpu memory? Because I already changed that.

disabled the gpu and it’s the same I checked in system and and it’s using intel internal. Weird thing is it went away last night and came back This morning :(

Ok traces look good and tested traces diode mode with working board. The match diode mode. I’m stuck on this one :( Data pins measured without screen 5= .293v 6 =.498V 7 =.498V 8= .722 9=.723 10= 0v 11= .723 12=.723 13=0v 14=.724v 15=.723v 16=0v 17=.724v 18=.723v 19=0v 20=.724v 21=.723v 22=0v...

Yes it turn on by itself with out battery I have a original charger that is my test charger verified in system profiler. It’s weird because a PRAM solves it but when I remove the battery for a few days it resumes the same symptoms

Hi I have a board that I change ISL On and I hit the power button it turns on then off I hit it again and it turns on no issue but it does this every time I power it up.

Ok will try thanks :)

Pch_intvrmen_L =3.2v Pch_intruder_L=2.8v I tested the sysclk_clk32k_rtc signal yesterday it’s was 32.6khz tested with oscilloscope I’m still missing pp3v3_sus

PM_DSW_PWRGD =3.27v PCH_DSWVRMEN =3.15v SMC_ADAPTER_EN=3.36v PM_RSMRST_L=0v PM_PWRBTN=3.42v RTC signals Sysclk_clk32k_rtc =0v Ppvrtc_g3h=3.26v Rtc_reset_L=3.24v Pch_srtcrst_L=3.18v Pch_intvrmen_L =3.2v Pch_intruder_L=2.8v Ppvout_g3_pch_dcprtc=0v Are these the rtc signals you needed ...

Ok let me explain myself yesterday I was stuck around q7820 and u7940 pin 1 = 3.285v smc_batlow_L Pin 2 = 0v Ground Pin 3 = 0v pm_sus_en Pin 4= 0v pm_sus_en Pin 5 = 3.3v pp3v3_s5 Pin 6 = 0 v Pm_slp_sus_L q7820 Pin 1=0v pp3v3_sus Pin 2 =0v pp3v3sus_ss Pin 3 = 3.3v pp3v3_s5...

I’m sorry it was pm_pch_pwrok =0v I don’t have pm_slp_s4_L I mistakenly wrote 3.42v on the first post.

Plt_reset_L =0v Pm_pch_sys_pwrok =0v What I don’t understand is if I’m missing pm_slp_s4_L How can I have s3 State and if I don’t have s3 how can I have pm_pch_sys_pwrok or plt_reset_L can you give me a hint to where I’m going wrong I’m my thought process?

So I received a board that’s missing pm_slp_s4_L looks like someone had removed the bios. I checked the vias and They seem good. I checked the spi bios Bi-directional Via as well. The hold signal spirom_use_mlb 0v. Pm_Pch_pwrok=3.42v U2800 Ppvrtc_g3h =3.27v Pp3v3_s5 = 3.3v Pp3v42_g3h = 3.42v...