Circuit diagram for the Lenovo ThinkPad R61 on the DAV3 GENBU5W board design, revision 5.13, in PDF form at about 1.28 MB.

Schematic PDF for Wistron motherboard 18803-1, about 6.4 MB, with no laptop model named in the file.

PDF schematic for the HP DV6000 laptop, 1.57 MB in size. Only the model appears in the name, with no board number, ODM project code or revision, and the DV6000 series…

Part reference sheet for 5HN01C, a compact 26 KB PDF listed under schematics. No laptop model or board number appears in the name.

A 41.8 KB PDF named for the 2SD2457 with an E tag, filed as a schematic. By the JIS scheme, 2SD marks an NPN bipolar transistor, so expect a component reference rather…

A 91.5 KB PDF titled with the JIS part number 2SD1886, which suggests a component datasheet even though the index tags it as a schematic.

Covering the 2SK3495, this 28.0 KB PDF carries the schematic tag yet is named after one JIS part, pointing to a brief datasheet.

A 407 KB PDF for the 2SK2602, a part number following the Japanese JIS convention in which 2SK designates an N-channel field-effect transistor.

The 2SK2350 is identified here only by its part number, in a 417 KB PDF catalogued as a schematic.

The 2SJ344 is covered by this 310 KB PDF, which the catalogue lists under schematics. The file name carries nothing beyond the part number.

The 2SC4429 is the only information carried by this 107 KB PDF name. Following Japanese JIS semiconductor numbering, 2SC stands for an NPN bipolar transistor, so the…

At 108 KB, this PDF is labelled with the transistor type 2SC4221 and nothing else, so no board, model or revision is identified.

Listed under schematics, this 36.9 KB PDF belongs to the 2SC5538, which the Japanese JIS prefix identifies as an NPN bipolar transistor.

PDF sheet for the 2SC3935 part, with an _E suffix after the number, filed under schematics at 40.7 KB.

Filed under schematics, this 466 KB PDF is identified by the code 2SC4839 alone. In the Japanese JIS designation system the 2SC prefix belongs to NPN bipolar…

A 147 KB PDF whose name is just 2SC2881, catalogued as a schematic. By JIS numbering this is an NPN bipolar transistor, and the file is most likely its datasheet rather…

Small 42.8 KB PDF for the 2SC2188, carrying an _E suffix in its name and filed under schematics.

A 30.8 KB PDF named for the 2SA1522, a part number in the Japanese 2SA series of PNP transistors.

Part document for the 2SA1511, an 88.3 KB PDF filed in the schematic category. Its name follows the Japanese JIS designation in which 2SA denotes a PNP bipolar…

Filed as a schematic, this small PDF of 60.3 KB is named only with the part code 1T410 and gives no device, brand or board number.

Filed under schematics, this 93.2 KB PDF carries only the part code 1N3208, a JEDEC style 1N designation normally given to diodes, so expect a manufacturer datasheet…

Only the part code 245NQ015 appears in the name of this 94.4 KB PDF, suggesting a datasheet for a high current rectifier device rather than a circuit diagram.

Catalogued as a schematic, but the part number 224CNQ035 follows International Rectifier style Schottky rectifier naming, so the PDF is most likely a component datasheet…

Only the identifier 150CNQ035 appears in the name of this 53.3 KB PDF, filed under schematics. No product, board or revision is given.

Code 50WQ06F is the only clue in this 38.5 KB PDF, filed under schematics and naming no laptop, brand or board.

Filed under schematics, this 202 KB PDF carries only the code 20CJQ060, with no board, model or revision in the name.

PDF schematic named only SY3, a 551 KB document without any brand, model or revision information in its name, so its identity must be confirmed from the title block…

Compal LA-4101P mainboard schematic in a 1.12 MB PDF. The name holds only the board number, so neither the laptop model nor the revision is stated.

Service manual for the Samsung SM-N985F, the Galaxy Note20 Ultra model number, in a 3.89 MB PDF.

MSI schematic in PDF form for board MS-17E71. MSI uses its own MS- numbering, where the digits identify the project and the last digit the board version.

Circuit diagram for the Quanta ZH1 board project, a 852 KB PDF with no revision indicated.

Gigabyte GA-Z270X-GAMING 7 schematic in PDF, board revision 1.0, matching the Intel Z270 desktop motherboard.

Schematic diagram in PDF form for the Samsung SM-A546B smartphone, 665 KB. Phone schematics show circuit blocks, power management connections, charging paths and…

Schematic for the Dell Vostro 3400 laptop, compressed as a RAR of about 1.07 MB. The name provides no ODM board number, revision or graphics variant, so check the title…

Studiomaster M1000 schematic, supplied as a 576 KB PDF. Studiomaster builds professional audio gear such as mixers and amplifiers, and a diagram like this is used to…

Archived PDF schematic for the HP ProBook 4431s, UMA version with integrated graphics only, on board 6050A2398701.

Circuit diagrams in PDF form for the Lenovo D222B LCD monitor, compressed as RAR. Monitor repair usually involves the power board, LED backlight driver and scaler logic…

Schematic for a Dell 1088 laptop on Quanta board DAVM8GMB8G0, project VM8G, packed as a PDF in a 1.23 MB RAR archive.

Schematic in PDF form for MSI motherboard MS-7C58 revision 1.0, compressed into a 1.86 MB RAR.

Wistron schematic for projects LF15A and LF15V, board number 13286-1 also listed as 13286, supplied as a PDF inside a 2.62 MB RAR.