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Yes I tried a new screen and cable and even put it in a “test” unit where I do all my testing same issue :( . I tried using an external monitor but I think my DisplayPort to hdmi stopped working so I just Said “it has to be gpu” and swapped it. Can you explain this “graphiccardstatus” is this...

Ok so I got this board off eBay and the board show all black as green. I tried 2 known good screens and had the same affect. I Then thought it was a graphics issue so let’s say someone who never replaced a gpu, Replaced it and still have the same issue :( . The same exact issue.... I’m thinking...

Ok yes now I changed it and it’s working Thanks

No I haven’t changed it yet. It won’t charge or power on without battery changing isl would be my next step

Ok I saw something with my oscilloscope so I plugged a battery and charger, the board chimed. Fans ran normal not on high so I’m guessing the smc is fine. Would you say now that the culprit is isl6259 These give me issues :( out of 10- isl6259 Only 2 where good. eBay is getting progressively worse

Pin 9=0v I’m sorry nothing with smc bypass model I resoldered all the pins go u7000 and now I have a solid green light and 4v on ppbus_g3h. I have smc_pm_g2_en at pin 1 3.42v of r7940 And pin 12 of u7201 R7012 is 736ohms It say 1k (chgr_cell) I have 3.42v at chgr_cell And 3.42v at pin 12 of...

Hi at u7000 Pin 1=0v Pin12= 3.43v pp3v42_g3h Pin13 = 3.42v Pin 14 =3.32v smc_bc _acok Pin 15=0-1.49v fluctuates Pin 19=5v Pin 20=5v Pin 27=16.31v

Yes diode mode to ground on f9700 .459v Yes 3v42_g3h =3.42v Din Green light on MagSafe No signs of water damage I will check voyages on pins you suggested and get back to you

Hi I’ve got this board 1.7 volts Isl 6259 Chgr_dcin= 16.36v Chgr_acin= 3.98v Pins 28, 29 =20.4Ohm Pins 17, 18= 3ohms r7020 = .2ohms

I’m sorry I got it thanks it was r9789 Thanks again

Hi I checked for a flashing folder and have a flashing folder but no backlight. f9700 12.56 on both sides On u9701 i traced fb from ppvout_sw_lcdbklt_fb pin 5 of u9701 I used a magnet wire soldered to my probe. I have continuity. I have no bkl_en signal Traced that back to q9706 I have a...

I’m sorry I understand . But you know some people want it like factory :/ I do my best too please them. They’re not satisfied with a good working board everything must be spotless. thanks again for you continued support

Thank for your help

Ok I changed clk chip and found shorted Cap pp1v8 rail that was making it come down. So now I’m all good except I removed two USB port that where really corroded. Where can I get these new? I’m trying not to use a donir as the usb won’t look new.

pp3v3_s0, pp5v_s0 are pulsing. I’m sorry you where right. PPVCORE_SO_CPU= 0v ISNS_HS_COMPUTING=12.53v not pulsing Q7830 has 3.3v on pins 1-3 and pin 4 is pulsing. The diode mode on pin 4 -.483

Well yes the 5v_s0 is pulsing the fan is on and off :( 12.56, 3v3, 5v but s0 is pulsing pp5v_s0 but I was thinking the clk circuit or thunderbolt had something to do about it. Also how hard should it be to replace both USB ports? I’ve tried for like 10mins and couldn’t get it all the way off. I...

I’m sorry I meant that the other voyages aren’t pulsing Only ENET_WAKE_L. Which goes to the clock chip From q2830 I believe :(

Hi I’ve checked all voltages and all are ok I’m pulsing at Q2830 pin 2 ENET_WAKE_L I see it’s from u3900 which I believe is thunderbolt and I have corrosion around Q4260. So my question is where can I disable this u3900 to make sure the area is bringing the board down. if I’m on the wrong Track...

Ok

Thank you piernov