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  1. P

    No Power A2337 MacBook Air 820-02016-A - 5V - 04 Amp

    Nothing is correct, C8314/C8315 both read 3.8v, C8321 reads .62v, etc.
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    No Power A2337 MacBook Air 820-02016-A - 5V - 04 Amp

    I get 12.3v on PPBUS_AON and 3.8v on 3V8_AON. I dont know how to check ldo on U8100 and U7700. Also S2 rails seem missing, I dont get any voltage on PP5v_S2 and .38 on PP3v3_S2_UPC
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    A2337 MacBook Air 820-02016 - 5V - 0,04 Amp

    What coil number was bad and how did you find it?
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    No Power A2337 MacBook Air 820-02016-A - 5V - 04 Amp

    No signs of liquid damage. No fluctuations, steady at 5v .04amps. I do have a good working spare board to compare to if needed. Have schematic. Would corrupt firmware cause a reading like this? Where do I start?
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    A2141 no backlight

    Maybe I didn’t explain myself clearly. Both capacitors that I injected voltage into at first just happened to be the faulty capacitors and didn’t show as hot on the thermal camera until I injected voltage into a good capacitor further down the line. Why that happened, I have no clue. At any...
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    A2141 no backlight

    Ok, so I figured it out. Crazy enough, I chose two capacitors (separately) to inject voltage into in case I connected to the bad capacitor at first. Well, the second capacitor I connected to it turns out was ALSO bad. I decided to connect to a 3rd capacitor and the thermal camera showed the...
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    A2141 no backlight

    Testing backlight capacitors in circuit, they are all shorted to ground. Tried injecting 1.5v, no capacitors are hot.
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    A2141 820-01700 No LCD Backlight; 55 ohms between PPVOUT_S0_LCDBKLT and ground

    Looks like Im having this same issue. What do you mean removing L8452 you can discard an internal leakage into J8500? Can you explain that in noob speak? Ive tried injecting up to 1.5v and dont see anything hot on the camera at all.
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