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  1. Atomrepair

    [SOLVED]820-3437-B - no green light. PPBUS_G3H missing

    I've hooked everything up, assembled the machine fully and ran the tests again. Its passing the fan exhaust (and all other tests) in both EFI and OS versions of ASD. Not sure if intermittent issue or if something need to be connected for the fan to work, other than the fan itself
  2. Atomrepair

    [SOLVED]820-3437-B - no green light. PPBUS_G3H missing

    After replacing the trackpad and flex cable, keyboard and trackpad are now working fine. This board now passes all ASD tests apart from one: Fan Motor exhaust test 4. ASD EFI error is:Motor is spinning slower than it should ASD OS: Motor unable to stabilize between min and max limits PP5V_S0...
  3. Atomrepair

    820-3115-B no green light, PPBUS_G3H 12.3V

    I am also not trusting the SMC job I did. :rolleyes: Or the SMC I used, of course, but when can you trust that? I will use my other donor board's SMC for another try as soon as I have time. Will report back latah.
  4. Atomrepair

    820-3115-B no green light, PPBUS_G3H 12.3V

    I just tried with both speakers, no beep.
  5. Atomrepair

    820-3115-B no green light, PPBUS_G3H 12.3V

    No beep without RAM (only one speaker connected, but I take it it should beep on either one,right?)
  6. Atomrepair

    820-3115-B no green light, PPBUS_G3H 12.3V

    I decided to spend some time looking through the schematic in the hopes of gaining some understanding. This isn't really relevant to this particular board, but bear with me.. I see PPVCORE_S0_CPU_PH1 found at L7510 comes from Q7510, which requires input on the following pins to generate...
  7. Atomrepair

    820-3115-B no green light, PPBUS_G3H 12.3V

    I'm guessing cpu core being ok or not is this one: CPUIMVP_VR_ON 3,29V I've replaced the ISL already. checked a couple of things: PPCHGR_DCIN 16,4V CHGR_ACIN 4V SMBUS_CHGR_SDA hmm SMBUS_CHGR_SCL 3,46V CHGR_RST_L 3,42V CHGR_ACOK...
  8. Atomrepair

    820-3115-B no green light, PPBUS_G3H 12.3V

    I've replaced the SMC. Green light went on, machine powered on with fan spinning continuously but no image on screen and no blacklight. Now that I've had it on and off a few times, it no longer powers on. Instead, it takes 20 seconds or longer for the green light to come on, but its not steady...
  9. Atomrepair

    820-3115-B no green light, PPBUS_G3H 12.3V

    U7000 replaced. I've checked everything on BC_ACOK / CHGR_ACOK. R5087 is 470k as it should be. I've lifted U6901 to see if that was mucking it up, but BCACOK stays the same with it removed. However, I just noticed that PPCHGR_DCIN is fluctuating as well. Its sitting at 16.7V most of the time...
  10. Atomrepair

    [SOLVED]820-3437-B - no green light. PPBUS_G3H missing

    jadao SMC_LSOC_RST_L is fine on the logic board itself (with nothing connected). I might have worded my last post a little unclearly. The short to ground is located on the trackpad pcb. I don't think I'll bother trying to fix that thing.
  11. Atomrepair

    820-3115-B no green light, PPBUS_G3H 12.3V

    This board has had some liquid damage on it, sticky crap but not much corrosion. No or a dim green light, wont power on. PPBUS_G3H is 12.3V PP3V42_G3H is 3.42V PP5V_S3 is 0 V. Resistance to ground ~22k SMC_BCACOK is fluctuating between 3.0 and 3.3V. not steady. SMC_RESET_L is 3.42V already...
  12. Atomrepair

    [SOLVED]820-3437-B - no green light. PPBUS_G3H missing

    Finally received my SMC jig last week, I got around to taking one off a donor board and reballing that. First time doing this sucked, but I got it on the board in the end. PPBUS is now back to 8.6. Machine runs off new battery and charges it as well. I also found a short to ground on the...
  13. Atomrepair

    MY_BRAIN_EN_L is high.

    I'm with Smiba here. Put those crap boards aside and go do something else. Peering at shit for hours to try and make something of it hasn't ever done anything for me besides slowly filling my rage bar up.
  14. Atomrepair

    820-2610 - missing P5V_S3_REG

    I got my measurements mixed up earlier, measured at the wrong crystal. Sorry about that. Here's the actual RTC XTAL: RTC_CLK32K_XTALIN RTC_CLK32K_XTALOUT_R
  15. Atomrepair

    820-2610 - missing P5V_S3_REG

    Boardview lists multiple XTals, I figured you wanted to see RTC_CLK32K_XTALOUT or IN. Is it SMC_XTAL_R / SMC_EXTAL at Y5010 you want? Its the one right by the SMC. If so, reading is below. Schematic says its a 20MHZ crystal, so says the scope as well. I dont know how to measure the 32KHz its...
  16. Atomrepair

    820-2610 - missing P5V_S3_REG

    PM_SLP_S3_L has 0V, no short to ground. Thats another one that should be generated by the MCP, yes? I think the crystal is working, I've added screencaps of my scope for both pins RTC_CLK32K_XTALIN RTC_CLK32K_XTALOUT
  17. Atomrepair

    820-2610 - missing P5V_S3_REG

    Toggling? As in, being pulled back to ground when I hit the button and coming back up when I release it? If so, yes it is
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