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    [SOLVED]Retina 15 Late 2013 shutting down after three seconds

    nothing, the device looks like new, no water no nothing, the board does not turn off even if you twist it, as long as it has already turned on. no idea where to start, i guess it can be a faulty EFI.
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    820-2850 LCD_BKLT_PWM is missing after a GPU reflow

    When we short LCD_BKLT_PWM to a 3.4v source then we have backlight, any ideas?
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    [SOLVED]Retina 15 Late 2013 shutting down after three seconds

    No difference, this morning it is stuck in a loop. fans spinning for 5 seconds and then stop and then spin again and then stop again. Is it SMC?
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    [SOLVED]Retina 15 Late 2013 shutting down after three seconds

    I'm out of ideas, this laptop works perfectly fine, as long as you're lucky and it turns on, otherwise you're looking at trying to turn it on time after time and fans spinning for a few seconds and then they turn off. after a few tries it turns on and stays on and everything's perfect. Any idea...
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    Mid 2014 Retina 13 cpu stays cool

    Yes we have 1,69v on PPVCC_S0_CPU and CPU is cold. Any ideas?
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    [SOLVED]820-3437-A fan spinning very fast

    It was the Q6060, thanks everyone!
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    Mid 2014 Retina 13 cpu stays cool

    All the lines are there, VCORE everything, fan starts up, CPU stays cold, no picture. Where to start? any ideas?
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    [SOLVED]820-3437-A fan spinning very fast

    the board has very very little sign of water, but no component is oxidated or missing, the laptop works perfectly, any idea where to start?
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    Guys is this the chip or some kind of capacitor? Mid 2010 15 inch

    After heating to 220 there is no picture anymore, boots and you can hear the OS running but no picture at all, any idea?
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    Guys is this the chip or some kind of capacitor? Mid 2010 15 inch

    Yes that what we did in the end, removed the rubber junk(what purpose does it even serve?) and heated the chip up to 210 degrees using a BGA machine, it's working fine now let's see what happens. Some chinese guy is selling the balled chip on ebay, i bought two let's see if they are worth it...
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    Guys is this the chip or some kind of capacitor? Mid 2010 15 inch

    What do you guys mean by GMUX? the U9600?
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    Guys is this the chip or some kind of capacitor? Mid 2010 15 inch

    photo attached
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    iMac 27" Late 2009 backlight issues

    It's only the backlight, you can see the picture when you light the display with a flash light. So I'll check it with a replacment PSU then
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    MBP 13" Retina Late 2012 i5 2.5GHz under stress (GPU stress test) restarts

    Hi everyone, ASD shows no errors. Any ideas?
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    iMac 27" Late 2009 backlight issues

    Hi everyone, The iMac had a problem with the display panel's backlight, after a few minutes of usage the display went black. After an inverter board and the display panel were replaced the problem persists. Any ideas?
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    820-2850 TB3T Sensor is faulty in ASD

    I've rechecked the surface for bad soldering and soldered the chip again, same results as before. Any other directions I should look into?
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    820-2850 TB3T Sensor is faulty in ASD

    My bad, the board number is 820-2530. Wrote 820-2850 by mistake. I used 6258. The resistance between pins 17/18 and 27/28 of U7000 is the same - 20.7 ohm. Voltage on pin 2 is 16.5V
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    820-2850 TB3T Sensor is faulty in ASD

    I used 6259. Resistance between pins 17/18 and 27/28 of U7000 is the same - 20.7 ohm. Voltage on pin 2 is 16.5V
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    820-2850 TB3T Sensor is faulty in ASD

    U7000 was replaced. Current sense resistors circuits seem to be OK. The voltage remain the same as before - 8.8V and 9.9V. The problem persists
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    820-2850 TB3T Sensor is faulty in ASD

    Tried with a good known battery, with/with out battery indicator connected shows the same error. Also, PPBUS_G3H seems to me at fault --- PPBUS_G3H=9.9V with battery and charger connected. PPBUS_G3H=8.8V with only charger connected
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