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L9090 0v 400 And there is now just one light..

I already replaced U9000 but now I don’t have 12v on pin 1 Pin 1 400 Pin 2 500

PP12V_S0_CPUCORE_FLT 12v on side 1 (r9003) side 2 REG_CPU_VINSNS 0v u9000 dead? replace?

you need to copy past the links...sorry

https://ibb.co/n62xFvm https://ibb.co/qdFK5dM

This 3 was damage I was replaced hope with the right one.. https://ibb.co/n62xFvm https://ibb.co/qdFK5dM

how do i know where is the voltage of each..? i don't have board view..

there is just 2 indicator light on

update: there was small broken resistor(not near T2) ...i was replace him. now it pass the restore and change to booted status in the end but nothing on the screen and no usb activity.. any idea?

https://ibb.co/6r7PZ7H This Red line at the picture is 0.0320 it is a short? There is no board view so I don’t know what line is it:sneaky:

sorry that i jumping this after a year.. but i have exactly the same case..same component broke link i the picture..but i get error 9 at Apple configurator! the imac was working fine, i was just upgrade the ssd and the memory, and after that its happened. i was also put back the old ssd and...

Yea and the charger still with orange light pulsing..

o.k i was put the board back and try to put it in DFU the apple logo show for 1-2sec and off.. i was try to put it in recovery mode its say that it preparing to enter but when it need to enter its shot off. sometimes im getting the "!" sign with support.apple.com/mac/restore i was able one time...

with battery connection the charger light still pulsing but PPBUS_AON and 3V8_AON voltage are stable 12.1v and 3.8v

PPBUS_AON and 3V8_AON also pulsing every 2-3 sec

also PP3V3_S2 3.3v all the voltage pulsing with the charger..

VLDO2 ( PP1V8_S2SW_CLVR_VDDC1_LDO)1.8v sorry my mistake.. look like all voltage are o.k

im sorry that its look messy but i was make big space between but it didnt do it..

VLDO1 (PP3V3_S2) 0.2v VIN_LDO1(PP3V8_AON_MPMU) 3.8V VLDO2 ( PP1V8_S2SW_CLVR_VDDC1_LDO) 0v VIN_LDO2 (PP3V8_AON_MPMU) 3.8V VLDO3 (NC) VLDO4 (PP3V3_AON) 3.3v...

in the middle of the checking i was notice that the CPU is getting hot...i was disconnect put the fan and the fan start to work, i was said wired but look like is working...i was but the board in the body but then again is dead...put it out again but still dead, so maybe i was touch at something...