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  1. E

    Macbook A2289 Water damage s0 state?

    Hi, here is the voltages I get: L7670 5V L7690 3.3V L7030 12V L8100 1.2V Actually, sorry, you are right. I am missing voltages on CPU core L7270 1V L7210 0v L7220 0V L7420 0V L7410 0V L7702 0V L8102 0.073V
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    Macbook A2289 Water damage s0 state?

    Hello, I have compared the diode mode reading on the coils and is very alike a working board. I changed the 2 x u7710 and u8110 just in case. I connected to dfu tried revive again now I see the battery is charging and takes around 2.5 amps, While charging, I looked around the board with the...
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    Macbook A2289 Water damage s0 state?

    Hello, I have been working on a Macbook Pro A2289 board number 820-01987-A for the past few days. I have found this problem quite strange, and I can't see how to sort it out according to my knowledge. The MacBook arrived with water damage. It was not too much, but it got to the board and...
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    820-01521-A No power 5 or 20v

    I do get 1V1 J6100 Pin 32 0.713 Pin 33 0.395 I can't get to go into DFU. It was not even recognized when I connected the cable to the host Mac. I got a thunderbolt that can`t be used. I tried few different cables
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    820-01521-A No power 5 or 20v

    I checked all the voltages are ok. The diode mode is around 0.500 on all
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    820-01521-A No power 5 or 20v

    Hello, I am working on a Macbook air A1932 model that came with water damage around Q7660 which I already replaced. Symptoms are if I plug in the board only without a battery I get 5V 0.01A if I plug in the battery, I get 20V 0.02A I did the followings : Measured PPBUS_G3H, PP3V3_G3H Are ok...
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    A2338 820-02020 5v 0.07 not turning on

    All right, My apologies; I should have checked with a new screen. I found a broken screen but showing backlight. It Is amazing how the components communicate with each other. I kept thinking was a board issue. Thanks for everything.
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    A2338 820-02020 5v 0.07 not turning on

    UP710 from the schematics I see that is enabling the display, which is working; I went to UP800 is not giving any voltage on LCDBKLT_SW, this was replaced. QP800 I have 11.5V on pin 3 and 11.9 on pin 4. I am quite confused as I can't spot any other short or any reason why UP800 is not producing...
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    A2338 820-02020 5v 0.07 not turning on

    I get image, but no backlight. I have replaced the backlight driver but is same. I will check the signals as well shortly.
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    A2338 820-02020 5v 0.07 not turning on

    I have removed the short, and the MacBook is turning on, but now I get full fan spin and no backlight or touch bar on. Any help would be appreciated.
  11. E

    Macbook a2337 sound not working

    I found a line CODEC_WAKE_L going to U8100. It looks like a small burn. I am right? I do get headphones sound.
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    Macbook a2337 sound not working

    Hello, I got a MacBook air a2337 with liquid damage; the audio board was damaged, sort and no power, I removed the short, and then I got the MacBook back on after this sound was gone. I decide to replace the audio board, but the sound is still not working. Speakers are ok. The motherboard is...
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    A2338 820-02020 5v 0.07 not turning on

    Yes, confirmed the SLG4AP43605V( UP710 ) is shorted to ground. Now the issue is that I am unable to find this ic. Any hint?
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    A2338 820-02020 5v 0.07 not turning on

    I took out the UP700, and measured all the lines, but EDP_BLC_5V_EN is shorted to the ground. UP710 might be faulty?
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    A2338 820-02020 5v 0.07 not turning on

    I have injected 2v on LC320 and UP700 is getting hot.
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    A2338 820-02020 5v 0.07 not turning on

    Hello, I have received a Macbook Pro with no power. The device was affected by water damage, I fixed all the corrosion found, but it is still the same. The voltage is 5v and 0.05a to 0.08a slowly fluctuating. PPBUS_AON is stable 3V8_AON is 0.200V going to 0.400V. LC320 in diode mode is 0.009...
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    820 3023-A Not booting not mounting

    Thank you so much, I was thinking about this, but I wasn't sure.
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    820 3023-A Not booting not mounting

    Hello, I received a job with a very damaged board 820 3023-A and I decided to replace it as they were too many issues. After I have replaced the board I am unable to boot from the same hard drive that was in. The hard drive is working all right but it seems that I can manage to mount it or to do...
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    Macbook pro 820-01700 T2 Issue no revive or restore

    Hello, I actually have 87W charger, I will try today with 96W as well and reply back, thanks The voltages looked ok but I will also double check again.
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