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solved changing 2 amplifiers

Diode mode for shorts? Could you show me where are the audio amplifiers? Are the 4 chip on the other side of the motherboard?

I have sound from headphones… I can set volume from button, but no audio from speakers…how is it possible? I’m going crazy!!!!

with the old board i have audio...

What do you mean with AUDIO FLEX??? Or small audio board????? It is a MacBook Pro….

so i have bought a fully working motherboard.. all ok except sound...i can't hear sound from speakers! i can hear sounds from headphone... no problems found in diagnostic mode in settings, i can see "internal speaker" like output.. tried smc reset no luck

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Bios already Tried…you gave me it some days before…

2informaticos, how are you?? all ok? i try to summarise i have activy led for both usb i can't boot any os from both usb ssd not seen (even with another ssd) if i go in recovery, as soon as i insert wifi passord, mac hangs and reboot ic camera was 100% resoldered (i don't know why) usb...

So i’ve removed the short! Now if i Connect ONLY POWER SUPPLY WITH THE MOTHERBOARD and nothing else, and try to push the power button, I have this https://www.dropbox.com/scl/fi/g0z6ksfmb9e2g7pw8k3e3/Foto-10-04-24-13-06-17.jpg?rlkey=4roiqxoarzg1jnwegvtkh1u66&dl=0 What do you think??

reg_p3v3s5_vout shorted from u7600

removing l7610 i have short only on pp3v3_s5_ssd

0,9 ohm...

ok! i have full short on c7620 pad ! it is pp3v3_s5_ssd!! if i inject voltage on this pad, i can clearly see the line near the ic that pulse....but i still have short even removing the ic!

Removed q8470 still short Removed u8490 still short

I’ve discovered something looking better with Thermal camera https://www.dropbox.com/scl/fi/gsqngzyaojcebicnaxz83/Video-10-04-24-11-29-19.mov?rlkey=377a5e4bb5pkzuigiqlunvfy9&dl=0 This is not the ic but the line that pulses ! I have full short on both side of this cap...

So in This picture https://www.dropbox.com/scl/fi/w6fx28t9pg3nrwdbzhjv8/Foto-10-04-24-11-11-16.jpg?rlkey=cx6z79jxa7ooaqzzvrvl62i1f&dl=0 On the left I have the ic (and it should be u8470), on the right, I have the mosfet (it should be q8470) On This picture...

00134 seems most similar https://www.dropbox.com/scl/fi/750byon2el454fx62fhy7/Foto-10-04-24-09-45-41.jpg?rlkey=uqjjc97fqjafzpoupplk0v4kd&dl=0 In the white circle There is not the component that I have in my motherboard. I’m assuming it is q8490 or u8490…how to understand? But now? What...

how can i change them if i don't know anything abouth them?