Lenovo B490 laptop schematic, a 1.95 MB PDF whose name gives no board number or revision.

Motherboard schematic for Compal board LA-A992P, 1.08 MB PDF; the name states no laptop model or revision.

Circuit schematics for the Dell Latitude D620 business laptop, packaged as a 1.28 MB PDF.

RAR-packed schematic for the HP Stream 11 d000, Quanta motherboard DA0Y0AMB6C0, project Y0A, labelled PUNCH BTM 6L revision 1A dated 0721, at 1.73 MB.

PDF schematic for the SM6375 chip, carrying an SM63 family suffix in its name and measuring 1.51 MB. The handset or board it came from is not given.

At 198 KB, the PDF for the 2SD1658 is one of the larger sheets in this group, though it still names only the part.

Largest in this set at 269 KB, the PDF 2SD2414 is catalogued as a schematic, yet its 2SD prefix marks an NPN bipolar transistor under the Japanese JIS scheme.

The 2SD1511 NPN transistor is the subject of this 56.9 KB PDF, filed under schematics in the index. JIS numbering assigns 2SD to low-frequency NPN bipolar parts.

The file name gives nothing beyond 2SK2233, a JIS/EIAJ designation whose 2SK prefix marks an N-channel field-effect transistor.

Here is the 2SC5242 documentation as a 173 KB PDF, placed in the schematic category but evidently a part datasheet going by its name.

Named 121nq with no suffix, this 93.9 KB PDF is filed as a schematic yet states no device, board number or revision.

Named 89cnq135a, this 202 KB PDF is listed as a schematic but most likely is a datasheet for a dual Schottky rectifier module of the CNQ type, with 135 normally…

Schematic PDF, 1.14 MB, named t43_2. The trailing 2 may indicate a second part of a split document or a second version, which the name does not clarify.

Schematic in PDF form for an HP model named 630G, presumably the HP 630 laptop, with no board number or revision given in the name.

Schematic in PDF format for a board identified only as F83VF, 1004 KB in size and apparently the same document as another file of identical size with a revision tag in…

Schematic archive named A217F.M, a 760 KB ZIP, with no brand recorded; the code resembles a smartphone model number, but the name states nothing further.

PDF named RTS545X, which refers to a Realtek RTS545x series chip, commonly a USB Type-C power delivery controller; the name gives no board or device.

Circuit schematic in PDF for the FL1 design, dated 0715 in the name and carrying revision R1A, roughly 1 MB.

PDF schematic for the Quanta R62 project, 2.43 MB, with no laptop brand or revision stated in the name.

Schematic in PDF format, 1.45 MB, named UX50, which corresponds to a notebook model designation; no brand, board number or revision is stated in the name.

Circuit schematic for MSI motherboard MS-7295 in a RAR archive of roughly 5.25 MB. The file name identifies only the board, with no revision noted, so confirm the PCB…

Troubleshooting PDF, 3.16 MB, named without any brand, model or board reference, so it is uninformative until opened.

Circuit diagrams for the CP variant of the Wistron JV50 motherboard, revision RSB, stored in a 1.66 MB RAR archive. No notebook brand appears in the name.

Quanta GD1 circuit schematics at revision 1A. The name does not identify the laptop brand or model.

Revision R0.4 schematic for the Compal LA-2451 notebook mainboard, distributed as a 1.22 MB RAR file.

Schematic PDF titled Z96Jm, revision 1.0, about 1.31 MB. The file name gives no brand, and Z96Jm is not decoded further here, so check the title block for the…

Circuit schematic for the Samsung Galaxy A5 2017, model SM-A520F, stored in a 7.72 MB RAR archive.

PDF guide in Spanish on the power-on sequence of the Xiaomi Poco X3 Pro, covering stages one, two and three of startup.

Schematics for Compal board LA-H672P, revision 1.0, with EOC41 given as the platform code, in a 1.01 MB PDF; no laptop brand is stated in the name.

PDF schematic of 5.39 MB whose name is just an automatic messaging-app document number, so it reveals no brand, model or board number.

Lenovo schematic in PDF, board NM-A331, revision 0.4. The NM-xxxx numbering is used by LCFC, Lenovo's own ODM, though the name does not say which laptop model the board…

Zener diode datasheet covering the 1N4370 to 1N4372A range, a 74.3 KB PDF. These are low voltage Zeners in a small axial package, with each part number corresponding to…

Schematic in PDF format for the X453MA mainboard, about 1.43 MB, marked RG, which on ASUS-style files usually denotes the revision release; no brand or revision number…

Sony laptop schematic, an 891 KB PDF whose name refers to MBX-239 and MBX-240, suggesting one document covering two closely related VAIO mainboards.

Schematic in PDF for Apple logic board 820-00165-A, a 1.54 MB document; the name gives no Mac model.

Schematic in PDF form for the ASUS ROG GL702VSK gaming laptop, revision 2.0, at 8.85 MB.

Schematic PDF for the Gigabyte B360M D3V motherboard, revision 1.0. The B360 chipset places it in the Intel desktop range for socket 1151 processors of that generation.

Schematic in PDF form for a motherboard numbered LA-K472P, a pattern used by Compal, the ODM that builds boards for several laptop brands.

Schematic for the Bolt-L DIS board, Wistron number 18750-1, with R4GHW and revision A00 noted in the name, provided as PDF in a 15.3 MB RAR archive.

Lenovo schematic for board NM-A361, a 2.69 MB PDF with no model or revision stated in the name.