Recent content by Eduardo&Macs

  1. E

    820-01814-A No Power stuck at 20V 0.05A-0.93A

    I tried both revive and restore options. Still fails. I will take the board out and test the SSD voltages. Is there any specific components you recommend testing?
  2. E

    820-01814-A No Power stuck at 20V 0.05A-0.93A

    Hello, I have this board with zero history. It worked fine then didn't turn on for some reason. It is recognized in DFU mode but fails to restore or revive. I get error message: The System cannot be restored on this device. The operation couldn't be completed ."AMRestoreErrorDomain error 6 -...
  3. E

    A1708 820-00875 20v, 0.03A, doesn't power on

    Yep, I understand now. 0.7 was in Ohms. In diode mode it gives me 0 for PPBUS_G3H By big coils are you referring to L7030, L7210, L7220 and other “L” components on the board?
  4. E

    A1708 820-00875 20v, 0.03A, doesn't power on

    This is so embarrassing. ? I was using resistance. Switching over to diode mode we get 374. With F7000 still removed I get 0 on PPBUS_G3H EDIT: Reinstalled F7000. I made sure it was installed by using continuity mode and putting each probe on the opposite pads. Still get 0 on PPBUS_G3H for...
  5. E

    A1708 820-00875 20v, 0.03A, doesn't power on

    Checked L6995. 2.750 Pin 1 2.753 Pin 2 Checked R6999 using continuity mode. Beeps. Doesn't look damaged. 2.740 Pin 1 2.743 Pin 2 I have another 00875 board that takes 20v and 0.05A. I checked L6995 in diode mode. ~2.8 00840 board that takes 5.18v with 0.03A and L6995 in diode mode has ~2.7...
  6. E

    A1708 820-00875 20v, 0.03A, doesn't power on

    I remeasured in diode mode. Red probe at ground. Black probe on test point for 3v3_G3H next to R5168. No power connected. Board by itself on desk. 2.753 Tried putting red probe on USB-C shield, screw holes, RAM shield, etc. All measured the same 2.753. Tried black probe on 5-8 components that...
  7. E

    A1708 820-00875 20v, 0.03A, doesn't power on

    I see now. It's meant to check the test points, not the specific components in that circuit. Thank you for that. 3.421 BUF_SMC_RESET_L Removed F7000 13.06v R7060 Computer now takes 20v with 0A compared to 20v with 0.03A F7000 13.06v Pin 1 0.00v Pin 2
  8. E

    820-00923 20V @ 200mA not turning on

    Hey Ajay, You don't need to spend $350 on a programmer. There are dozens of programmers that you can use for this job. You can find some for around around $30-$50 that'll do the job. The way I've done this sorta job is use a programmer that connects to the JTAG connector on the board. Read...
  9. E

    A1708 820-00875 20v, 0.03A, doesn't power on

    Thank you, I'm excited to be here. ? The readings above were with the board alone on the desk, nothing connected with just USB-C port charger & USB digital tester. 3.422 3v3_G3H @ R6999 20.11 R7020 on all pins U7000 Voltages: 20.11 P_IN (measured PPDCIN_G3H_CHGR) 5.09 VDDA 5.09 VDDP 5.014...
  10. E

    staingate cleaned with Lysterin

    Looks like some of the liquid spilled into the display panel. Only way to fix that is by replacing the diffuser sheets behind the LCD panel. Big pain in the butt.
  11. E

    A1708 820-00875 20v, 0.03A, doesn't power on

    Not sure if this is relevant but board came from customer machine that I installed new battery on. This was 3 months ago. They used it two times and on the third time it didn't turn on. This machine was babied by the owner. The board is super clean, no corrosion, liquid spill or noticeably...
Top