A 166 KB PDF for the 2SD1904 transistor, listed here as a schematic but by its name almost certainly the manufacturer data sheet.

Component documentation for the 2SK2920, a 409 KB PDF filed under schematics in this index but almost certainly a part datasheet.

Part reference for the 2SK2862 in a 411 KB PDF, listed under schematics in this index. The name carries only the transistor number.

Datasheet-style PDF of 21.4 KB for the 2SK2751, listed under the schematic category. The 2SK designation belongs to the Japanese JIS system and marks an N-channel…

PDF document for the 2SK2374 part, filed under schematics but named after a Japanese-registered semiconductor rather than a board.

Small 30.0 KB PDF covering the 2SK2047 transistor. Under the JIS naming system the 2SK prefix marks an N-channel FET, so this is best treated as a part datasheet rather…

2SK1841 documentation in PDF form, 90.4 KB in size and listed as a schematic. The 2SK designation in the Japanese JIS system indicates an N-channel FET, so expect…

An 88.5 KB PDF on the 2SK1738 transistor. In the JIS system, 2SK designates an N-channel FET, so this file is most likely the datasheet rather than a circuit schematic.

Catalogued as a schematic, this 361 KB PDF carries only the part number 2SJ567 in its name.

Compact 42 KB PDF for the 2SJ340, catalogued among schematics although the name is a transistor part number. Nothing else about a device or board is stated.

Filed as a schematic, this 464 KB PDF carries just the name 2SC4322 and should be read as a transistor datasheet.

PDF reference for the 2SC4257 transistor, 81.6 KB, filed under schematics although it is a part document rather than a board drawing.

Datasheet PDF for the 2SC5575, 52.0 KB, placed in the schematic section of the index. The file name contains only the part number.

Datasheet-style PDF for the 2SC3988, 114 KB, filed in the schematic category though the name is a plain JIS transistor number.

Part reference for the 2SC4987, provided as a 110 KB PDF and filed under schematics. No model, board or revision is stated in the name.

Indexed as a schematic, this 95.8 KB PDF carries only the designation 2SC4821. In the JIS system the 2SC prefix denotes an NPN transistor, so the content is most likely…

For the 2SC3503, a 158 KB PDF datasheet listed with schematics. Only the part number is given; per the JIS system, a 2SC number belongs to an NPN bipolar transistor…

Part number 2SC3467 is the only information in this 138 KB PDF, which is catalogued under schematics.

A 145 KB PDF filed under schematics and named only after the part number 2SC2814, so it is most likely the component's datasheet rather than a board diagram.

The 2SA1572 transistor is documented in this 49.4 KB PDF. No board or equipment model appears in the name, so treat it as a component datasheet.

A 41.5 KB PDF for the 2SB970 transistor, with an _E suffix the file name leaves unexplained.

PDF document for the 2SA1246 semiconductor, filed under schematics but named only by the part number, so it is most likely the component datasheet.

Datasheet-style PDF for the 2SA1858 semiconductor, catalogued here under schematics, with an _E suffix in the name that likely marks an alternate edition of the…

IBM ThinkPad X61 schematic in PDF format, approximately 1.42 MB. The file name gives only the model, without a board number, revision or chipset detail, so check the…

Spanish PDF on automotive electricity, 1.01 MB, apparently course notes from the Emagister learning community.

Portuguese introductory study material on digital electronics, the first part of a course series judging by the numbering in the name.

Schematic for the Toshiba A300 laptop with the Intel GM45 chipset, as the name notes, built on mainboard 6050A2171301-MB-A02.

PDF for the bq24780S, a Texas Instruments battery charge controller used in many notebooks to manage adapter detection, charging and system power selection.

Schematic for a Shuttle board or system identified as A14IEXX, provided as a PDF inside a 511 KB RAR archive.

Schematic for the ASUS F82 notebook, built by Pegatron and carrying the H24L reference, provided as PDF in a 1.26 MB RAR.

PDF schematic for what the name, with a misspelled prefix, indicates is the Gigabyte GA-B150M-SE-SI motherboard, revision 1.0, packed in an 891 KB RAR archive.

Service schematic for the Bose AM15P, as named in the file, likely an amplifier or powered bass module from an Acoustimass-type speaker system.

Schematic in PDF format for the Compal LA-4101P notebook mainboard, about 1.12 MB. The name gives only the board code, without a brand, model or revision.

Schematic for the HP 510 laptop on board 6050A2256501-MB-A04, as a PDF in a RAR archive of about 519 KB.

Schematic in PDF for a board coded ZQM, in its UMA variant. UMA means the design uses integrated graphics with shared system memory instead of a discrete GPU.

Schematic PDF for Lenovo board NM-A481, following the LCFC numbering pattern used by Lenovo's main laptop ODM.

Lenovo ThinkPad T420 schematic for the NZ3 project in its UMA configuration, meaning integrated graphics without a discrete GPU.

Lenovo G40-70 laptop schematic for LCFC board NM-A361, a 2.70 MB PDF. LCFC, Lenovo's own design and manufacturing arm, uses NM-xxxx numbers for its motherboards.

HP G7000 and Compaq Presario C700 schematic, two models that share a common motherboard design according to the name.

Wistron JE40-HR schematic, revision R1.0, archived as a 1.46 MB RAR. The name gives no laptop brand or model, so match the board through the JE40-HR code on the PCB.