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Recent content by rupesh.amit

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    820 00850 Working on Charger only

    Ampere on PSU is fluctuating ..range from 0.350 to0.750 Not working on Battery, While charger is connected Battery shows 40 percent, and charging and when I take the charger plug out MacBook turns off Corrosion on Q7040
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    820-4924A Backlight Issue

    Did you change LCD connector? Yes BKLT_EN_R : Not Present D7710 :No Voltage F7700 : 12.6 .. Working FIne
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    820-4924A Backlight Issue

    There was a corrosion on LCD pins there is an Image on LCD but no Backlight Can you help me troubleshoot this mother board?
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    820-00165 A, Image with No Backlight Issue

    That was just a blown fuse F7700, Thanks for your help
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    820-00165 A, Image with No Backlight Issue

    I am sorry , i am a bit Dumb. Can you tell me how to " check XW7720 integrity "? There is nothing shorted in that Area, I am not sure why fuse blown out
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    820-00165 A, Image with No Backlight Issue

    Please help me troubleshoot the problem F7700 has been Damaged
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    820 00165 A ..... PM_SLP_S5_L missing

    PM_SLP_S5_L was pulling down the voltage on U8170 I had to replace one RTC resistor, Laptop started working Thanks for your help
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    820-01987 A ...... PPBUS_G3H Short

    Short Removed Now It is talking 0.60 mA ============================= F 7000 = 12.35 L 7030 = 5V WHat should be the best step?
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    820 00165 A ..... PM_SLP_S5_L missing

    Max Current : 0.30 mA C8170: pin 1= 3.3 V U8170: pin 6= 0V Help me out sir
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    820-01987 A ...... PPBUS_G3H Short

    No Same voltage on any other Coil, Not even on L9080or L9081
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    820-01987 A ...... PPBUS_G3H Short

    Help me remove the shorting from the board No signs of Physical Damage or Liquid Damage No history and Board looks clean under the microscope Input Voltage : 5 V F 7000 Pin 2 : 0.50 V & 54 ohm RTG
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    820 02020 A Not Turning ON

    Can you help me find the board view? Current State Voltage : 5 V Current : 100 mA
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    820-2914 board , I am missing LCD BKLT EN, It comes from GMUX U9600

    Thanks for your response
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    820-2914 board , I am missing LCD BKLT EN, It comes from GMUX U9600

    I am not sure how to disable GPU ? The board came from another shop and they already have a jumper for LCD_BKLT_PWM
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    820-2914 board , I am missing LCD BKLT EN, It comes from GMUX U9600

    Could someone help me with what to do next? I am working on 820-2914 board. It’s a MacBook Pro 17” I have display as confirmed bu chipmunk USB tester. I am missing LCD BKLT EN. It comes from GMUX U9600 If it’s not present, anything I can do?
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