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Recent content by CGid

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    820-01987-A 5V @ 0.02A, PPBUS_G3H low but not short?

    Got it working! For forum search sakes. Injected voltage starting at 1V and slowly raising it until I had current draw. 5V @ 3a gave a 30-40mA draw. Under thermal I was able to see one of the right speaker amp ICs glowing. U6550. After replacing with one from a donor, the board charges and...
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    820-01987-A 5V @ 0.02A, PPBUS_G3H low but not short?

    125.7 Ohms
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    820-01987-A 5V @ 0.02A, PPBUS_G3H low but not short?

    L7702 - 0.065 L7420 & L7410 - 0.006 L8100 - 0.112 L7210 & L7220 - 0.007 L7270 - 0.029 L8102 - 0.157 L7030 - 0.490 L7690 - 0.442 L7670 - 0.427 L8410 - 0.893 L8450 - 0.427 L6901 & L6900 - 0.427 L9080 - 0.416
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    820-01987-A 5V @ 0.02A, PPBUS_G3H low but not short?

    PPBUS_G3H side is 0.087. PPVBAT_G3H is 0.560
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    820-01987-A 5V @ 0.02A, PPBUS_G3H low but not short?

    No other coils are around this. L8100 is 0.100 and that's the closest in measurement. everything else is 0.3-0.5. L7420 & L7410 - 0.005 (3.4 Ohms) With F7000 removed. C7050 - 0.553
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    820-01987-A 5V @ 0.02A, PPBUS_G3H low but not short?

    U7000 Readings
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    820-01987-A 5V @ 0.02A, PPBUS_G3H low but not short?

    Have a board that came in for not turning on. Readings on the board are as follows (Diode Mode) PPBUS_G3H - 0.087 [0.702V when USB-C is plugged in] PP3V3_G3H_RTC - 0.376 PP3V3_G3H- 0.434 PP3V3_S5 - 0.387 PP2V5_NAND_SSD0 - 0.410 PP1V8_S5 - 0.305 Another post mentioned a failed Q7030 which I...
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    820-00875 20V @ 0.124A No Power On.

    That's what I figured. Appreciate the confirmation nonetheless.
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    820-00875 20V @ 0.124A No Power On.

    Have a system that came in for no power. When plugged in, system boosts to 20V. No response from the power button however. Diode Mode: PPBUS_G3H = 0.472 & 13.05V PP3V3_G3H = 0.027 & 3.341V PP3V3_S5 = 0.000 (0.8 Ohms) & 0.000V Injecting 1V @ PP3V3_S5 draws 1.6-2A and causes the PCH on the...
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    820-01598 Stuck at 5V 300-400mA current draw

    Just curious. Is there a reason diode mode is used over resistance? more just a general question. I'll have to order a replacement chip.
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    820-01598 Stuck at 5V 300-400mA current draw

    I do not have a good board to compare too but here are the readings
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    820-01598 Stuck at 5V 300-400mA current draw

    Pulls 600-800 mA immediately after injection.
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    820-01598 Stuck at 5V 300-400mA current draw

    It appears U7800 (D2449A0P0FUAVAE2) is bad
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    820-01598 Stuck at 5V 300-400mA current draw

    After being disconnected from power since the time of posting it reads 21.2 ohms. so seems something is wrong here. Is voltage injection possible since it's not a dead short?
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    820-01598 Stuck at 5V 300-400mA current draw

    Have a Macbook A2159 Board Number: 820-01598 Upon inspections there was a 320mA constant draw by TPS62180 (U6903) I removed the chip and checked it and found it shorted, so it was replaced. After replacing I have the following, PPBUS_G3H - 12.3V PP3V3_G3H_RTC - 3.310V PP3V3_G3H - 3.250V...
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