Hi everyone, i got a Dell G7 7588 missing [B]+VCC_CORE[/B] and [B]+VCCGT[/B], i have already checked the power on sequency, everything seens to be fine, i also have [B]PCH_PLTRST#[/B] signal present.
the laptop turns on but no video.
i flashed a new BIOS and also Clean ME, same issue.
i already replaced [B]PU5000[/B] NCP81215D
[B]DRVON[/B] 4.75v
[B]VR_RDY[/B] 3.3v
[B]EN[/B] 3.3v
[B]+VCCSA[/B] 1.04v
[B]+VCC_CORE[/B] resistance is 4ohm.
no GPU power also but if i remove the[B] +VCCSA[/B] coil i have the GPU powered...
multitech
New Member
Last Activity: 04-23-2025, 09:46 AM
Joined: 07-27-2020
Location: Covilhã
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Dell G7 7588 LA-E994P missing +VCC_CORE
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Re: A1502 820-4924A Schematic
Thank you for sharing. -
MacBook Air 820-01521 Dead (Water Damage)
hi everyone, customer came with a MacBook Air 13 Retina 2018 820-01521 dead, she dropped some tea on it.
i found corrosion on U6960 and U7650, i already replaced.
On USB Meter i have 5V 0A.
PP3V3_G3H_RTC = 0.800V
P3V3G3H_PHASE = 0.800V
PP3V3_G3H = 0V
PP5V_S5_LDO = 2.5V
PPBUS_G3H = 12.33V
PP3v3_UPC_XA_LDO = 3.3V
PP3v3_UPC_XB_LDO = 3.3V
I also tried to restore it using a 2014 Macbook air but no DFU device found.
Thank you. -
Re: 820-01521 schematic
Thank you bro.Leave a comment:
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Re: 2019 iMac 21.5''
Hey Guys, i have a 2019 iMac 21.5'' after flash the unlocked bios i cannot startup the OS X but i tried install Windows and worked well, any tips? thank you....Leave a comment:
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Re: Macbook Air 820-00165-A schemati and boardview
Thank you so much!Leave a comment:
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