Search results

  1. J

    820-3332-A Black Screen/Kernel Panic

    Hello. This macbook came in like 1 year ago because of distorted image on the screen, in that time I resolder U8900 and reballed the GPU. The computer worked fine for that period of time and now it is randomly crashing: black screen followed by a restart. It says "panic (CPU...") Ive red...
  2. J

    820-00138-A 3 Beeps RAM Issue

    PP1v35_S3_MEM: 1.38V PP0v75_S3_MEM_VREFDQ_A: 0.698V PP0v75_S3_MEM_VREFDQ_B: 0.700V 4 retainers of the heatsink are fine. No damage around retainers either. Thanks
  3. J

    820-00138-A 3 Beeps RAM Issue

    Hello I have this board, no signs of corrosion or any damage. I get voltage in all the big coils, turn on, no video and 3 beeps Any idea?
  4. J

    820-00840-A No video

    3V3_S0SW_LCD: 3.29V DP_INT_HPD: Couldnt measure it since the resistor is just under the video cable shield. I will order, the screen. Thanks!
  5. J

    820-00840-A No video

    Hello I have this A1708 2017, no liquid found, overall good condition but super dusty. The macbook wont show anything on the screen, if I disconnect the screen I get external video. I do not have a screen to test, are there any measurement that I can check so I can order the screen with a...
  6. J

    820-3437-B no video

    Issue found thanks to your last comment PM_PCH_SYS_PWROK: 0V Trace from PP3V42_G3H to PIN 8 of U1950 was broken. Trace restored and board is working. Gracias V
  7. J

    820-3437-B no video

    Liquid Damaged board, around SMC, R5100 destroyed. -Reballed SMC, replaced R5100, added fresh solder to all resistor in the area, -Green light, then orange light. -SMC_RESET_L: 3V -All big coils have voltage -ALL_SYS_PWRGD: 3.34V -PLT_RESET_L: 0V (not shorted to ground) Any help? Gracias
  8. J

    820-2915-B No video

    Hello. This board has GPU disabled with GMUX dosdude method. ALL_SYS_PWRGD: 3.3V PPVCORE_S0_AXG_L: 0.468V (is this ok??????) PPVCORE_S0_CPU: 0.777V PPVCORE_GPU: 0V PP1V5_GPU_REG: 0V PP1V0_S0GPU: 0V Bios?
  9. J

    820-02020-A Stuck 5V

    I have PP5V_SW_LCD shorted to ground when connecting the screen (0 ohms) When screen disconnected I got 58ohms to ground or 0.064V (diode mode) -Any recommendation on the screen? -The 0.064V sounds good?
  10. J

    820-02020-A Stuck 5V

    Couldnt find any different measurement on the chips. I replaced UF400 and the machine taking 20V y both ports. Now, when connecting the screen I only get 5V on both ports. If I disconnect the screen I can hear it chimes. I took out the board again and on the bench i do get external video Any...
  11. J

    820-02020-A Stuck 5V

    I measured the power sections, I coulndt find any clue. UF400 PP5V_S2 PPHV_INT0_AONSW 0.543 PPVBUS_USBC0 0.139 PP3V3_S2_UPC PP1V25_S2 PP3V3_UPC0_LDO 0.487 PP1V8_S2 USBC0_3V3LDO_EN 0.525 UPC0_SS 0.561 PP1V5_UPC0_LDO_CORE 0.504 UF500 PP5V_S2...
  12. J

    820-02020-A Stuck 5V

    Replaced U5700 and the board takes now 20V 0.200A when connected to UF500. When connected to UF400 only 5V and the USB-C meter restarts. Any idea? Thanks!
  13. J

    820-4924-A no video

    Just wanted to mark this one as solved. Replaced the display and the machine is wotking fine. About the HDMI, it seems that my external monitor decided to die. External video is working.
  14. J

    820-01598-A Liquid Damage (Working almost fine)

    I replaced U3100/200 and same issue. Worked fine for some times, the board is taking 5V, 0.083A then 0.123A then .083 and so on...
  15. J

    A1708 EMC3164 Screen replacement?

    Is there a way to identify an original screen for a a1708 emc 3164 (or any model) from the seller ? Any reliable shop in the US? I have seen some in Amazon and in aliexpress, but I think they are copies. Thanks!
  16. J

    820-01598-A Liquid Damage (Working almost fine)

    The board is taking 5V, 0.083A then 0.123A then .083 and so on... Any idea?
  17. J

    820-01598-A Liquid Damage (Working almost fine)

    Hello, I reflowed the affected aread and cleaned with ultrasonic Then the macbook only took 5V. I reflowed again U3200 and U3100 and the computer took 20V and turned on just 1 TIME. What should I measure? C6902 and C6905 got completely destroyed, do you think these missing caps could be...
  18. J

    820-01598-A Liquid Damage (Working almost fine)

    Any recomendation to remove the shield?
Top