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    820-000165a draws power (lots) no boot

    Hi All I have a Macbook Air which will draw approx 3amps when connected to battery and plugged in. Then will hover around 2.1amps after about 20 seconds. Fan spin up to 100% No video output / screen No Bong Not sure where to start with this one!
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    820-00138 - water damage

    Hello! Water Damaged Motherboard - U3210 was burnt beyond all recognition. Is this likley to be repairable ? I think I'll have to run jumper wires / find some way of instaling the C320 again. Is this requried fopr the computer to work beyond supplying power to thunderbolt...
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    820-00185 - Macbook Air - powering on issues

    Hello Fun little one I belive will be an easy fix! Here's what it does - Power button doesn't turn machine on, but will allow us to turn off. (therefore not keyboard) - Computer will run on battery power alone, but not turn on when only battery is connected - Computer will auto power on...
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    820-01700-05- Water Damage No Boot

    Hello Board is obviously corroded in about 5 places. Power supplies 20v, 0.04 amps on all 4 ports after a little clean with Qtip. I have a schematic diagram but not the board view file. Will search for this and try to update rails.
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    A1466 - 820-00165-A no boot 40ma

    Hello, We have a Macbook Air not powering on. Draws 40ma We have PP3v3S5 but no S4 rails S4 Power Enable is missing PM SLP S5 L is 0v SMC_S4_WAKESRC_EN 0v PP3V42_G3H 3.44v SMC RESET L 3.4v Is this SMC issue? SMC is not hot.
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    820-00850 no power - 5v

    Hello, long time no post. I have a 820-00850 board which has no power, USB provides approximately 5.2v on all ports and 0.05 / 0,06 amps. We have got PPBUS_G3H 12.3v Have not got PP5V_G3S I'm unfamiliar with exactly how this model works, aside from a few of louis' videos. Looking at the...
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    820-3437-B No Boot

    Hi All This is what I know. PPBUS_G3H - 0v PP3V42_G3H -0v CHGR_UGATE 4mv CHGR_LGATE - 0mv U7100 1 -.39mv 2 18.16v 3 4.82v 4 330mv 5 0.4mv 6 0v 7 0.4mv 8 0.3mv 9 33.1mv 10 330mv 11 330mv 12 332mv 13 13.4mv 14 330mv 15 11.5mv 16 0v 17 7mv 18 7mv 19 5v 20 5v 12 0v 22 0v 23 7mv 24 7mv 25 4.77mv...
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    820-00165 Macbook Air - Fan Spin - No VIDEO (intermittent condition)

    HI All, Macbook air Sometimes boots normally and functions 100%. Other times, fan will spin, with no video or chime. Board looks good with no obvious signs of corrosion. Not a backlight issue. Will sometimes chime and boot normally. When it does not chime there is no video / backlight...
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    820-3332-a Shuts down under load

    Macbook is OK booting and will stay on for hours. Shuts down (seems to completely just power off) when doing something intensive like HD youtube. Have not managed to "catch" it yet. I have tried with a different battery which made no difference.
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    820-000426 - no backlight

    HI All PPVOUT_S0_LCDBKLT - 1.3mv PPBUS_S0_LCDBKLT_FUSED - 12.86v LCDBKLT_EN_L - 12.72v PPBUS_SW_LCDBKLT_PWR - 12.87v PPBUS_SW_BKL - 12.6mv Is my Q7706 bad or should LCDBKLT_EN_L be a low / 0 voltage? Cheers, James
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    820-3332-A

    Computer appears to start, then trips out. Bench PSU shows draw from .25ma to approx 1amp after 1 second. which then resets and starts again. Client says it sometimes turns on normally. Some kind of over voltage protection or a shorted component tripping a circuit? Not sure where to start...
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    820-3662-A no Brain

    Hi Computer turns on, no chime, keyboard light or video. Tested CPU power coils 0v. ALl SYS PWRGD 3.5v PP3V3 S0 us 3.5v however I get no voltage at 2 of R1950 - should I replace this resistor? (CPUVR PGOOD) Cheers James
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    Mac Mini Fan Connector - No Pads - 820-3228-B

    Hi All, Does anybody have schematic for the above computer? Also can anybody recommend an alternative wire for running leads ? I can't find anything locally (Australia) and many Amazon sellers don't ship to Australia. https://store.rossmanngroup.com/jumper-wire-thick.html
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    820-3209_A Backlight

    What fun says Louis! I've read the sticky on the home page. I WAS getting 8.5 v out at baclight but now 0. BKLT_EN_DIV 8.07v S0_LCDBKL 8.34v No power on Pin 1,2,5,6 for Q7906 BK_EN 5v
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    A1708 EMC 3165 - 820 00840 A - Intermittent no Screen / Backlight

    Hello Client has brought in laptop with their son saying there is no screen. I get the laptop in the bench and open lid... perfect video. This morning nothing on display for about five minutes, I go away for a bit to find a torch to see if it's just no back-light and the laptop is on again and...
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    820 - 3332 A

    Interesting set of symptoms Laptop works OK but will shut down under load on Battery and Cable. Chrome is fine but not too many tabs open or away it goes! Completely shuts off after battery reaches 60% - client replaced battery.
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    No Backlight - 820-00426A

    Hi Client claims laptop was water damaged and he ordered a new board from overseas. With this new board he has no backlight. I've tested a different screen on this computer there is also no backlight. A1398 EMC2909 (original model) I assume I would start by checking backlight circuit...
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    820 - 4924A - Easy win but maybe not??

    Macbook comes in. Does boot, but green light on charger. I disconnect battery, and try with just charger no luck. I investigated the other side of the board and found corrosion on U7840 which I removed. Success! Computer now boots with battery and charger connected. BUT the keyboard does not...
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    A1932 EMC3814

    Hi, Apologies I can't seem to find the board number. Client has liquid damage. She said was WAS turning on so she took to Apple for a checkup, they told her to replace entire unit and now the unit does not turn on at all. I have examined the board, there was a lot of water in the macbook but...
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    820 - 2879 - B 80% boot's then resets

    Hello, Issue happens with external and internal boot drive Issue happens when trying to boot to safe mode. Verbose boot hopefully provides some clues (last 2 lines) IOBluetoothFamily -- missing Bluetooth Controller Transport! nspace-handler-set-snapshot-time:979599617 I have tried...
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