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Search: Posts Made By: piernov
Forum: Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals Yesterday, 08:58 AM
Replies: 4
Views: 56
Posted By piernov
Re: PS_NVVDD_EN_R low - circuit question

Reading the datasheet of the buck controller (uP9511?) can help. EN is not pulled-up externally, external circuit leaves it floating to enable or pulls it to ground to disable. Since there's a...
Forum: Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals 08-09-2022, 05:12 PM
Replies: 7
Views: 58
Posted By piernov
Re: iMac A1312 2011 27"

https://www.badcaps.net/forum/showpost.php?p=896261&postcount=3
Boardview and schematics are correct and have all the information…
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 08-09-2022, 02:57 PM
Replies: 23
Views: 1,471
Posted By piernov
Re: ASUS Tuf Fx505dd rev2. Does not start up, does not charge the battery.

https://badcaps.net/forum/showthread.php?t=90356
https://badcaps.net/forum/showpost.php?p=989502&postcount=2
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 08-09-2022, 02:53 PM
Replies: 7
Views: 121
Posted By piernov
Re: Macbook 820-2849 c7404 - Capacitor Replacement

PPBUS_G3H is 8.6V max on 820-2849.
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 08-09-2022, 02:50 PM
Replies: 2
Views: 63
Posted By piernov
Re: Asus S400C — VGFX Core no voltage

https://logi.wiki/index.php/User:Piernov#I_am_missing_VCCAXG.2FVCCGFX.2FVCCGT_.28iGPU_core_voltage.29.2C_how_do_I_solve_it.3F
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 08-09-2022, 02:49 PM
Replies: 23
Views: 263
Posted By piernov
Re: MacBook Air 2018 A1932 820-01521 Not turning on.

Revive/update keeps data, restore wipes data. In case of corruption or damaged SSD, data could already be gone anyway.
Forum: Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals 08-09-2022, 02:44 PM
Replies: 7
Views: 58
Posted By piernov
Re: iMac A1312 2011 27"

https://logi.wiki/index.php/Board_Number_by_A_Number#A1312_iMac_27.22_Unibody
Forum: Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals 08-09-2022, 02:40 PM
Replies: 1
Views: 30
Posted By piernov
Re: Zotac 1080Ti Am Extreme missing components

https://www.badcaps.net/forum/showpost.php?p=1046381&postcount=12
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 08-09-2022, 05:25 AM
Replies: 6
Views: 120
Posted By piernov
Re: DA0U8AMB6A0 REV A No display, maybe dead processor?

Most parts connected to HWPG are no stuff (can be confirmed by looking at the board). Weird but may not be used at all on this platform. S0IX_PG on the other hand is at least connected to a few power...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 08-09-2022, 04:59 AM
Replies: 7
Views: 121
Posted By piernov
Re: Macbook 820-2849 c7404 - Capacitor Replacement

Used random SMD tantalum capacitors for £3.50 each? That's a total ripoff. Take one off of a donor board yourself, or ask your local electronics supplier for a new one.
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 08-07-2022, 11:25 AM
Replies: 8
Views: 1,024
Posted By piernov
Re: Dell Latitude E5540 power On than Off after 5 seconds.

https://www.badcaps.net/forum/showthread.php?t=90356
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 08-07-2022, 05:33 AM
Replies: 1
Views: 71
Posted By piernov
Re: A1369 and A1466 top case housing the same?

A1369 = Magsafe1, A1466 = Magsafe2
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 08-04-2022, 01:48 PM
Replies: 11
Views: 228
Posted By piernov
Forum: Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals 08-04-2022, 01:11 PM
Replies: 4
Views: 82
Posted By piernov
Re: iMac logic board fan control question.

Ferrite bead not resistor.
Forum: Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals 08-04-2022, 12:37 PM
Replies: 6
Views: 618
Posted By piernov
Re: is PCB bump did not make a serious problem? gtx680 Graphics card

A delaminated PCB is a dead PCB, can't fix it. On top of it never being flat again, thermal expansion will make it unevenly expand and cause deformation, and most likely inner traces and vias are...
Forum: Schematic Requests ONLY! 08-04-2022, 07:22 AM
Replies: 1
Views: 77
Posted By piernov
Re: Sony Vaio PCG-7181M

https://www.badcaps.net/forum/showthread.php?t=88758
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 08-04-2022, 04:16 AM
Replies: 10
Views: 217
Posted By piernov
Re: Dell Precision M6600 graphics issue

https://badcaps.net/forum/showpost.php?p=1153464&postcount=3
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 08-01-2022, 01:07 PM
Replies: 22
Views: 570
Posted By piernov
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 08-01-2022, 05:26 AM
Replies: 22
Views: 570
Posted By piernov
Re: Lenovo x270 no post problem help!!

https://logi.wiki/index.php/User:Piernov#I_am_missing_VCCAXG.2FVCCGFX.2FVCCGT_.28iGPU_core_voltage.29.2C_how_do_I_solve_it.3F
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 08-01-2022, 05:03 AM
Replies: 4
Views: 142
Posted By piernov
Re: lenovo ideapad s145-15ast / power off

No, these are solder bridges. Someone worked on this board already. Can also be seen by some traces of leftover flux and the solder blob on PL3501.
Forum: Schematic Requests ONLY! 07-30-2022, 03:24 PM
Replies: 61
Views: 16,868
Posted By piernov
Re: Macbook pro M1 A2338 820-02020 schematics boardview

https://github.com/OpenBoardView/OpenBoardView/releases/tag/9.0.3
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 07-30-2022, 06:43 AM
Replies: 17
Views: 769
Posted By piernov
Re: Macbook A2141 / 820-01700-A / Nand burned

Random SSD ICs won't work. Must come from same model donor or be prepared with JC P13.
Forum: Schematic Requests ONLY! 07-27-2022, 11:24 AM
Replies: 154
Views: 86,370
Posted By piernov
Re: Boardviews of some phones/tablets

https://www.badcaps.net/forum/showpost.php?p=983651&postcount=63
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 07-27-2022, 11:23 AM
Replies: 96
Views: 1,332
Posted By piernov
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 07-26-2022, 04:02 AM
Replies: 9
Views: 345
Posted By piernov
Re: Dell vostro 3510 backlight help

Why mess with CPU VCore for a backlight issue? Sure way to kill the CPU.
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