(347) 552-2258 [email protected]

Search results

  1. M

    LB 820-2915-B green light no boot no chime no charge

    I do have the 3.4v on SMC_ADAPTER_EN
  2. M

    LB 820-2915-B green light no boot no chime no charge

    yes I do have it 3.42v
  3. M

    LB 820-2915-B green light no boot no chime no charge

    I do not have a battery plugged in if that matters
  4. M

    LB 820-2915-B green light no boot no chime no charge

    No it is not present.
  5. M

    LB 820-2915-B green light no boot no chime no charge

    PP3V42_G3H, PPBUS_G3H, PP5V_S5, PP3V3_S5 are good, have not found any S3 or SO rails
  6. M

    LB 820-2915-B green light no boot no chime no charge

    So , i have a 2011 15" macbook pro with good one wire circuit, good s5 rail, seem to have all the rails I am supposed to except it won't charge a known good battery or turn on.
  7. M

    [FUBAR] LB 820-2879 B no green or orange light (needs SMC)

    Ok, louis I am responding to your video today on success. My daughter was able to micro solder on this board. (she has never done that before) We were able to get green light on the charger by running a wire to fix the one wire circuit. (first wire was hideous, but the second one was much nicer)...
  8. M

    [FUBAR] LB 820-2879 B no green or orange light (needs SMC)

    how do we close this topic?
  9. M

    [FUBAR] LB 820-2879 B no green or orange light (needs SMC)

    Ok, thanks again for all your help.
  10. M

    [FUBAR] LB 820-2879 B no green or orange light (needs SMC)

    Yes, i have SMC_RESET_L 3.4v. so we basically have a dead SMC. Oh well one for the donor pile. You make it look so easy on your videos! Thanks for your patience. Do you have a source for the isight connectors on the 2013 and 2014 15" macbook pros?
  11. M

    [FUBAR] LB 820-2879 B no green or orange light (needs SMC)

    no, I had power unplugged and checked in diode mode for the .53v and the .421v. I then plugged in power and measured dc voltage on SMC_PM_G2_EN and got a very low mv on probe point 1006. Could be possible that the u7200 I replaced was bad? There was very little liquid spill on the machine, I...
  12. M

    [FUBAR] LB 820-2879 B no green or orange light (needs SMC)

    Ok, they are not shorted, and SMC_PM_G2_EN is fluctuating in mv, and yes i am an idiot! PP5V_S5_LDO = .53v SMC_PM_G2_EN = .421v
  13. M

    [FUBAR] LB 820-2879 B no green or orange light (needs SMC)

    Ok, screwed that up. SMC_PM_G2_EN in diode mode measures .023v not fluctuating, PP5V_S5_LDO is fluctuating at .361-.4v in diode mode so it looks like they are shorted to ground. When I check these points on a working board in diode mode i get OL
  14. M

    [FUBAR] LB 820-2879 B no green or orange light (needs SMC)

    Supported your site. I really appreciate what you are doing. you guys are awesome! I know I am a pita right now, but I will get better! :o
  15. M

    [FUBAR] LB 820-2879 B no green or orange light (needs SMC)

    changed it out and no difference
  16. M

    [FUBAR] LB 820-2879 B no green or orange light (needs SMC)

    Oh ye of little faith!
  17. M

    [FUBAR] LB 820-2879 B no green or orange light (needs SMC)

    I do not have pp5v_s5 it measures 2.2v-3.8v fluctuating. Removed Q7221 and no change
  18. M

    [FUBAR] LB 820-2879 B no green or orange light (needs SMC)

    Resistor measures good, pin 1 on U7840 is 3.4v, SMC_RESET_L is 3.4v on pin 13 of U7000. I have no visible signs of damage around the U7200 but would you recommend replacing U7200 anyway? Is there some way to test if it is good?
  19. M

    [FUBAR] LB 820-2879 B no green or orange light (needs SMC)

    I am trying to understand the flow of the circuit with the u7200 chip. i don't have the 5v3v3 reg en on pin13, which appears to come from SMC?
  20. M

    [FUBAR] LB 820-2879 B no green or orange light (needs SMC)

    i do have 3.7v on pins 4 and 6, I do not have PP3V3_S5_REG
Top