MSI MS-171B1 schematic, revision A, supplied as an 839 KB PDF. MS-17xx style codes are used by MSI for its notebook mainboards, so this is very likely a laptop board…

PDF datasheet, 171 KB, whose name is only a numeric code, 1302440201, so neither the component nor its maker can be determined from the title.

Laptop schematic, 6.11 MB PDF, carrying project number 17831 with the code names Turis, Vegas and MLK, a KBL-R platform tag meaning Intel Kaby Lake Refresh, and revision…

Acer Aspire 5755 schematic built around the Compal LA-7912P motherboard, saved as a 1.53 MB PDF with no revision stated in the name.

Circuit schematic for the Sony Vaio MBX-143 motherboard; the name gives no retail model or revision.

Sony MBX-215 motherboard schematic for the M930 project, also labelled IRX-5100, at revision SB according to the name.

Service repair guide for the Asus X455LB laptop in PDF form, 1.17 MB. The name gives no motherboard revision, so check the guide's own pages for the board version it…

Schematic in PDF format for the ASUS Q170M-C desktop motherboard; the RG tag in the name is not explained.

Schematic in PDF form for the Acer Aspire T5000, a design the file name ties to Quanta under the project code Usopp, with SLS also appearing in the title.

Schematic in PDF form for the Biostar Gaming Z170T motherboard, supplied as a 1.24 MB RAR archive. The Z170 chipset is part of the name.

Boardview for the Lenovo ThinkPad T14s Gen 2, LCFC board NM-E091 revision 1.0, provided in a 378 KB RAR that the name says contains a PDF version.

PDF document for the Gigabyte GA-AX370 Gaming K3 motherboard, revision 1.0, labelled as boardview in the name though stored as a 927 KB PDF, so it is probably a printed…

MSI notebook schematic for board MS-14811 at revision 0A, a 2.51 MB PDF; the retail model is not named.

Schematic in PDF form for the HP EliteDesk 800 G2 desktop, covering the motherboard identified in the name as Spitfire, revision A.

Short Spanish reference sheet explaining the acronyms and letter codes found on electronic diagrams, saved as a 27.7 KB PDF.

MSI laptop motherboard schematic in PDF for board MS-14571, following MSI's own MS-number system for its in-house designs.

PDF schematic labeled BM5866 Rev13, a 1.24 MB document, though the name does not say which device or maker it belongs to.

PDF schematic, 548 KB, for a TopStar device labelled X03. The name gives only the brand and model, without a board number, revision or ODM.

Schematic for the Lenovo B480 and B590, a Wistron design with LA48 / LA480 code names and board numbers 11264 and 11273, drawing revision SC 2.

Bottom-side companion PDF for the Lenovo NM-B311 board, LCFC numbering, at roughly 501 KB, showing component placement on the underside of the PCB.

Schematic in PDF format for the Toshiba Satellite A300, drawn by Quanta for the BL5S project, board DABL5SMB6E0.

Fujitsu Siemens LifeBook S4542 schematic, supplied as a 2.01 MB PDF. No board number or revision appears in the name, so compare the sheet title blocks with the markings…

Samsung SM-J530F service schematic in PDF, 4.73 MB. The name carries just the model code and no board revision.

Samsung S5282 document in PDF, only 531 KB, with Comp in the name, which most likely indicates a component layout drawing rather than full circuit sheets, though that is…

Dell Inspiron 1520 schematic diagrams saved as a 1.24 MB PDF. Nothing beyond the model and an unnumbered Version label is given in the name, so the board number and…

Lenovo IdeaPad S300 schematic for the Compal LA-8951P mainboard, revision 0.1, supplied as a 2.99 MB PDF.

A 28.0 KB PDF classed as a schematic whose name, 3LP01C, reads as a component part code ending in C. The file name gives no device, board number or manufacturer.

Filed as a schematic, this 86.2 KB PDF is named after the 2SJ229, a Japanese JIS-registered part number where the 2SJ prefix denotes a P-channel field-effect transistor…

An 86.0 KB PDF carrying the part number 2SC3998, catalogued as a schematic but by name a single-device datasheet.

The 2SA1518 is the subject of this 30.2 KB PDF, which the index files as a schematic although the name suggests a component data sheet.

PDF of 310 KB, the largest in this group, named 2N1893 and filed as a schematic. The JEDEC 2N designation indicates a discrete semiconductor, so the content is probably…

Named 1T405A, this 69.4 KB PDF is filed as a schematic. The A suffix marks a variant of the 1T405 code, and the two should not be assumed interchangeable.

Small 76.8 KB PDF carrying the name 25MT060WF, which resembles a power semiconductor part number, so although catalogued as a schematic it is probably a component data…

Named 20MT40KB, this 127 KB PDF is classed as a schematic, though the name does not identify any device, board number or revision.

Portuguese-language handout on basic electronics, filed under schematics although the name points to a study booklet rather than a circuit diagram of a specific device.

Schematics for the Samsung NP-Q1, the compact ultra-mobile PC, in a 1.10 MB PDF; the name gives no board code name or revision.

Quanta ZG5 schematic as a 1.03 MB PDF, with no revision in the file name; its size matches the rev 1A copy, but identical content cannot be confirmed from the name.

Circuit diagram in PDF form for the Lenovo 3000 G550 laptop, about 1.5 MB. The name lists neither the board number nor the revision, so check the title block and compare…

PDF catalogued as a schematic, although the Spanish name translates to MCR equipment brochure, which suggests product literature rather than a circuit diagram.

PDF schematic of 3.91 MB for a mainboard labelled NB3029, apparently the WSCH MB variant at version V4 A, as the name states.