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    iMac 27 5k, 820-00609-A, only 2 leds turn on, Fan's full blast, No image

    Hey guys, I'm Working on imac 27, 820-00609 MB that only light up the first 2 leds.. From your experience with this model, is it common for the graphics chip to die? The board is very clean and I can't find anything wrong with it. I have all the correct voltages at the outputs of the...
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    820-00850-A, 1 USB'C port, killing Pen's USB

    Hey guys, im working on 820-00850-A and that already kill my 2 pens usb's... the problematic port only works for the charging part. the port with problems is related to the U3100. I've also replaced the U3100 but no success... I have other board 820-00850-A repaired, and alredy compare...
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    820 01700, strange problem if i hibernate the machine from system

    hey guys, This one came with a C9080 shorted. After replace the capacitor the machine turn on and work well.. But if i set on system hibernate and try wake up the machine press a key or click on trackpad the machine restarts give me a kernel panic. This is the only problem.. If i close the...
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    820-00281, Strange backlight problem

    Hey Mr. Vali! I have a Macbook pro 15 A1707 which is giving me a headache. This mac has never been touched. I opened it for the first time. After a microscopic inspection, I didn't see any oxidized components. The problem is, when I turn on the laptop with the battery inserted, it turns on...
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