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  1. A

    [SOLVED]820-3787 No Image

    What if you remove the SSD? Will it go to missing OS icon after a few minutes?
  2. A

    [FUBAR}820-00165, No Green Light

    What is the voltage on smc_reset_l? What does the U5110 area look like?
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    [SOLVED]820-3115 No V-core

    No I haven't but I will take your word for it. What's the voltage on CPU_PROCHOT_L?
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    [SOLVED]820-3115 No V-core

    Remove U7400 and see what the voltage is then.
  5. A

    Macbook air 13, 820 3437 B, liquid damage ,No turn On

    Look at the schematic because you're clearly wrong and *******.
  6. A

    [SOLVED]820-3115 No V-core

    Well TON comes from PPBUS_G3H, so check for a broken trace to those resistors. What's the voltage on either side of R7402/3?
  7. A

    [SOLVED]820-3115 No V-core

    So the fan spins on this board and you have a green light? What's the voltage on PPBUS_G3H?
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    Macbook air 13, 820 3437 B, liquid damage ,No turn On

    R7080 should be there. Replace it.
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    820-3330 magsafe blinking

    Blinking on-off or green-orange? Check current sensing and chrgr boot on the ISL.
  10. A

    820-3476 keyboard/trackpad cuts in and out

    No, I sent one of them back no fix but I can't remember which one unfortunately, sorry.
  11. A

    820-3476 keyboard/trackpad cuts in and out

    This: 10 char
  12. A

    820-00045 troubleshooting steps

    R7101 & R7104 measure correct resistance, and 4.9v CHGR_ACIN voltage divider is working; ~1.2v G7 has power, but no ACOK signal and no short. Please tell me that this is not a bad ISL :(
  13. A

    820-3476 keyboard/trackpad cuts in and out

    Not sure how to test that. Should I boot it up and then just pop the airport card in while it's on? I thought airport is PCIe.
  14. A

    820-3476 keyboard/trackpad cuts in and out

    No it works in another system and a second card causes the same thing.
  15. A

    820-3476 keyboard/trackpad cuts in and out

    Without the airport card it works fine.
  16. A

    820-3476 keyboard/trackpad cuts in and out

    Yes 10 char
  17. A

    820-3476 keyboard/trackpad cuts in and out

    I left this alone until now, and it seems to have gotten worse while sitting. It works fine when the IO board flex cable is unplugged. Once I plugged the IO board in, it does the following: I can hold the option key to get to the boot menu, however once I get to the boot menu the internal...
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    820-00045 troubleshooting steps

    I hope not, that chip is BGA and over $30 new. So if the chip is getting power on H3 and H7, and CHGR_ACIN is high, should I get SMC_BC_ACOK? I see a few pins that also look like enables, so not sure.
  19. A

    820-00045 troubleshooting steps

    Ok I hooked PPBUS_G3H to the power supply and turned the power supply on, but it didn't draw any current. So I turned it off and measured again and the short had gone (.33v drop). WTF? So I put the fuse back and there still is no short to ground, but PPBUS_G3H is still 0v when I plug it into the...
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    820-3209 can replace another part number boards?

    Duct tape solves everything.
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