Board Schematic.CØM

iPhone 7 Can�t be Turned Board Repair Troubleshooting

admin — Mon, 29 Nov 2021 08:00:40 +0000

Machine model: iPhone 7
Malfunction: The mobile phone can�t be turned on.
Maintenance process:
Received an iPhone 7 of no Booting from the customermobile phone,Board DC power supply on the disassembling machine is large current, and large current is generally caused by VCC PP_BATT_VCC of battery or large current PP_VDD_MAIN with VCC or chip damage.

iPhone 7 Can�t be Turned Board Repair Troubleshooting Figure 1.
multimeter is measured as Short circuit at the end of PP_VDD_MAIN, and it is found that there is a damaged Capacitor beside the power supply under the microscope.

iPhone 7 Can�t be Turned Board Repair Troubleshooting Figure 2.

iPhone 7 Can�t be Turned Board Repair Troubleshooting Figure 3.
Buckle C1877 Capacitor, troubleshooting.

iPhone 7 Can�t be Turned Board Repair Troubleshooting Figure 4.

The boot test function is all right.

iPhone 7 Can�t be Turned Board Repair Troubleshooting Figure 5.
Here, the maintenance is over.

iPhone6 Plus Screen Display AB Normal Fault Board Repair

admin — Mon, 29 Nov 2021 07:06:16 +0000

iPhone6 Plus phone Screen Display AB Normal Fault Board Repair

Machine model:iPhone6 Plus
Malfunction: The screen display of the mobile phone is abnormal, and it will be turned off automatically after turning it on.

iPhone6 Plus phone Screen Display AB Normal Fault Board Repair Figure 1.

Maintenance process:
I received an iPhone6 Plus of Previously repaired from the customer. The customer�s description is just a few words. The mobile phone Backlight/Screen Half Black, which will automatically turn off when it is turned on, is also Backlight/Screen Half Black when other screens are changed.

iPhone6 Plus phone Screen Display AB Normal Fault Board Repair Figure 2.

First of all, I opened the mobile phone and found that Screw hole was dried up at Høme, and it was badly damaged, and the backlight IC chip on the right was still missing.

iPhone6 Plus phone Screen Display AB Normal Fault Board Repair Figure 3.

Measuring diode value found PAD I2c1 OverLoad.

iPhone6 Plus phone Screen Display AB Normal Fault Board Repair Figure 4.
I2c1, those two points OverLoad, and the test point values are normal, and they are connected through the direction of ZXW PCB layer.

iPhone6 Plus phone Screen Display AB Normal Fault Board Repair Figure 5.
Go directly to the two places of Jump wire, and by the way, paint Solder Mask on the one where Screw hole was scraped at Høme (fortunately, it was not scratched at Høme).

iPhone6 Plus phone Screen Display AB Normal Fault Board Repair Figure 6.

iPhone6 Plus phone Screen Display AB Normal Fault Board Repair Figure 7.
All functions of the boot test are normal. At this point, the screen of Previously repaired iPhone6 Plus mobile phone shows that the abnormal fault has ended.

Acer Aspire 3 A315-22 Board Schematic & Boardview NB8607

admin — sun, 27 Jun 2021 04:06:22 +0000

Board Schematic (*.pdf), 2 Boardview files (.CAD and Allegro .BRD), Boardview (.PDF) for Acer Aspire 3 A315-22 Laptop Board Schematic, NB8607_PCB_MB_V4 Motherboard.
CPU: AMD FT4 Stoney Ridge DDR4
GPU: UMA
EC: IT8987VG/BX
Language: English, Chinese,
File type: PDF (Searchable)
⇒ Free: Download⇔ Now

Original document, no irrelevant watermark.

File list:
Rose_SR_NB8607_MB_V3_0329_OK.brd.zip
Acer Aspire 3 A315-22 NB8607 Rev1.0.png
NB8607 TOP.pdf
NB8607 BOT.pdf
Acer Aspire 3 A315-22 NB8607 Rev1.0.pdf
Acer Aspire 3 A315-22 - NB8607_PCB_MB_V4 -Huaqin NB8607 Boardview (.CAD).cad

Boardview Software/a>

Open Boardview(Allegro .BRD) file with Allegro Free Physical Viewer(Download)
Open Boardview(.cad) file withBoardViewer(Download)

Dell Inspiron 7370 7373 7570 7573 Board Schematic & Boardview 16839-1

admin — Fri, 17 Sep 2021 15:54:32 +0000

Board Schematic (*.pdf), Boardview (*.brd Allegro), Boardview (*.cad), BOM file (.xls / list of componets), Motherboard PHOTOS (UHD quality) for Dell Inspiron 7370, Dell Inspiron 7373, Dell Inspiron 7570, Dell Inspiron 7573 Laptop Board Schematic, Kylo Ren 13 16839-1 Y5HR3 Motherboard.
CPU/PCH: Intel KabyLake-U/R DDR4
GPU: UMA
EC/KBC : MEC1416
OEM: Wistron KYLOREN 13
Format: pdf, brd, xls, cad, jpg
⇒ Free: Download⇔ Now

Original document, no irrelevant watermark.

Boardview Software

Open Boardview(.brd) file withAllegro Free Physical Viewer (Download)
Open Boardview(.cad) file withBoardViewer (Download)

Dell Vostro 14 5459 Board Schematic & Boardview AM8 DA0AM8MB8D0

admin — Fri, 17 Sep 2021 12:40:31 +0000

Board Schematic (*.pdf), Boardview (*.brd), Boardview (*.pdf), BOM file (.xls / list of componets) for Dell Vostro 14 5459 laptop, AM8 DA0AM8MB8D0 Motherboard.
CPU: Intel Skylake-U + DDR3L
GPU: DIS (NV N16S-GM) + DDR3L
EC/KBC: IT8528E
Format: pdf, brd, xls
⇒ Free: Download⇔ Now

Original document, no irrelevant watermark.

Boardview Software

Open Boardview(.brd) file with BoardViewer (Download)

Dell Inspiron 3721 Inspiron 17R 5721 Board Schematic & Boardview VAW10 LA-9105P

admin — Wed, 15 Sep 2021 02:29:25 +0000

Board Schematic (*.pdf), Boardview (*.brd Allegro), Boardview (*.cad), BOM file (.xls / list of componets) for Dell Inspiron 3721, Dell Inspiron 17R 5721 Laptop Board Schematic, VAW10 LA-9105P Motherboard.
OEM: Compal LA-9105P VAW10 REV 1.0 (DISCRETE)
Format: pdf, brd, xls, cad
⇒ Free: Download⇔ Now

Original document, no irrelevant watermark.

Boardview Software

Open Boardview(.brd) file withAllegro Free Physical Viewer (Download)
Open Boardview(.cad) file withBoardViewer (Download)

Lenovo ThinkPad A275 Board Schematic NM-B361

admin — Tue, 14 Sep 2021 14:03:32 +0000

ThE Board Schematic (*.pdf) for Lenovo ThinkPad A275 laptop, NM-B361 Laptop Motherboard.
APU: AMD Bristol Ridge FP4
GPU: (UMA)
EC: IT8186VG
Format：PDF (Searchable)
Language: English, Chinese,
Pages: 84
⇒ Free: Download⇔ Now

Original document, no irrelevant watermark.

Lenovo ThinkPad L450 Board Schematic NM-A351

admin — Tue, 14 Sep 2021 13:25:48 +0000

ThE Board Schematic (*.pdf) for Lenovo ThinkPad L450 Laptop Board Schematic, AIVL1 NM-A351 Laptop Motherboard.
Intel Crescent Bay Processor (BroadWell) with DDRIIIL + Wild Cat Point PCH
GPU: UMA or DIS (AMD Jet-S3 XT)
EC: ITE IT8586E/FX
Format：PDF (Searchable)
Language: English, Chinese,
Pages: 82
⇒ Free: Download⇔ Now

Original document, no irrelevant watermark.

Lenovo Legion Y7000 2019 Board Schematic & Boardview NM-C371

admin — Mon, 13 Sep 2021 01:24:43 +0000

Board Schematic (*.pdf), Boardview (*.tvw), Motherboard PHOTOS (UHD quality) for Lenovo LegionY7000 2019 Laptop Board Schematic, FY521/FY522/FY519/FY520 NM-C371 Laptop Motherboard.
CPU/HUB/RAM: Intel CoffeeLake-H / CannonLake-H / DDR4
GPU: DIS (nVidia N18E-G0 / N18E-G1)
EC: ITE IT8226
Format: PDF, TVW
⇒ Free: Download⇔ Now

Boardview Software

Open Boardview(.tvw) file withBoardViewer(Download)

Original document, no irrelevant watermark.

Dell Latitude G5 5587, G7 7588 Board Schematic & Boardview DDK51/DDK52/DDK53 LA-E993P

admin — Sun, 12 Sep 2021 10:07:35 +0000

Board Schematic (*.pdf), Boardview (*.brd Allegro), Boardview (*.pdf), BOM file (.xls / list of componets) for Dell Latitude G5 5587, Dell Latitude G7 7588 Laptop Board Schematic, DDK51/DDK52/DDK53 LA-E993P Motherboard.
CPU/PCH/RAM: Intel CoffeeLake-H / CannonLake-H / DDR4
GPU: UMA od DIS (nVidia N17P-G0/G1 GTX1050/GTX1050Ti)
EC: MEC1416
OEM: Compal LA-E993P
Format: pdf, brd, xls
⇒ Free: Download⇔ Now

Original document, no irrelevant watermark.

Boardview Software (Download)

Open Boardview(.brd) file withAllegro Free Physical Viewer

Also included:
— BoardView file (.BRD/.PDF)
— BOM file (.xls / list of componets)
— Board Power Block Diagram
— Board Power Map (Power Flow Chart)
— SMBus Block Diagram