PDF schematic named only ME4812, 852 KB, with no brand, model or revision information. The code could be a board or project identifier, but the name alone cannot confirm…

Schematic covering X51C and T12C, as named in this 1.58 MB PDF, suggesting one document shared by two related models.

Quanta QT8 laptop mainboard schematic at revision R1A, supplied as an 805 KB PDF. Quanta Computer is a Taiwanese ODM that builds notebooks for many brands, and its…

Duplicate copy of the Quanta CT3 board schematic, revision R2A, a PDF of about 1.16 MB.

Schematic for the board LA-L99GP, compressed in a 4.09 MB RAR archive; the LA- code is the Compal numbering scheme, though the name does not state the laptop brand or…

PDF for the BU4508DX, a small 48.8 KB document filed as a schematic but most likely the part datasheet.

Document for the 3DD304X, stored as a 489 KB PDF and catalogued under schematics, though the name suggests a component datasheet.

PDF of 77.6 KB named 2SD1620 and filed with schematics; the name carries nothing beyond the part number, which points to a component datasheet.

A compact 134 KB PDF titled with the part number 2SK2839 and catalogued as a schematic.

The 2SK1839 is covered in this 84.9 KB PDF, filed under schematics though the name points to a single semiconductor part.

The 2SD1294 is the only detail this 209 KB PDF name provides; the file is filed as a schematic but corresponds to a transistor part number.

A 107 KB PDF covering the 2SC4270, a JIS-numbered part. The 2SC prefix denotes an NPN transistor intended for high-frequency use.

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

Compact 125 KB PDF for the 2SC5091FT, an NPN bipolar transistor numbered under the Japanese 2SC scheme, with the FT suffix as part of the name; its exact meaning is not…

Reference PDF, 99.3 KB, for the 2SC3994, listed in the schematic category but named like a transistor datasheet.

Covering the 2SC5019, this 41.9 KB PDF carries an _E suffix and is indexed as a schematic.

Datasheet-type PDF of 43.3 KB for the 2SC5335, with an _E suffix that may denote an English version, though the name does not state it.

Datasheet-style document for the 2SB1424, indexed as a schematic and supplied as a 102 KB PDF. Nothing beyond the part number is stated in the name.

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

Datasheet-style PDF for the 2SA1241, 279 KB in size and filed among schematics. Nothing else is given in the name, so expect the usual electrical characteristics rather…

Small 37.6 KB PDF for the 2SA1900, written in lowercase in the original name and placed in the schematic category; the content is most likely a brief datasheet.

Version of the 2N5401 high-voltage PNP transistor datasheet tagged Sam in the name, a 53.3 KB PDF.

A 46.1 KB PDF datasheet covering the 2N3019 transistor, indexed in the schematic category.

A 292 KB PDF datasheet for the 2N2369, with an extra RE suffix in the file name whose meaning is not stated, catalogued as a schematic.

Indexed under schematics, this 66.7 KB PDF is named 1SV225; the trailing underscore looks like a naming artefact.

A PDF document for the 1SV215 part, catalogued as a schematic but most likely a component data sheet.

PDF for the 1SV316, catalogued under schematics, with UV and sot323 added to the name. SOT-323 is a small three-lead surface-mount package, while the UV token is not…

A short 31 KB PDF for the 1SV316 diode, filed in the schematic category. A separate entry with UV and sot323 tokens also exists for this part number, so compare both if…

A small PDF of 69.9 KB, listed under schematics and titled with the part number 1SV268.

A compact PDF of 53.8 KB indexed as a schematic, named only after the part number 1SS350.

Nothing beyond the code 1SS309 appears in the name of this 69.5 KB PDF, so no device or board can be tied to it.

Part code 1SS302 is the sole detail in this 67.5 KB PDF name; no laptop model, board number or revision is stated.

Very small at 10.8 KB, this PDF named 1n6778 looks like a brief datasheet or spec page for a JEDEC 1N-numbered semiconductor, despite being indexed as a schematic.

A small PDF of 147 KB catalogued as a schematic, although the name 1N3288A follows the JEDEC 1N registration used for discrete diodes, so it is most likely a component…

PDF catalogued as a schematic, though the name 27lc4096 reads like a component part number in the 27-series EPROM family, with LC usually marking a low-voltage CMOS…

PDF, 223 KB, named 30CTQ035, which follows the numbering of a discrete semiconductor rather than a board design, pointing to a component datasheet in the schematic…

A 176 KB PDF listed as a schematic and named 20ETS08S, with no device, board number or revision given.

Circuit diagram set for the Lenovo ThinkPad E390, delivered as a 1.49 MB PDF. No board number or revision appears in the name, so check the title block inside against…

Samsung F731U schematic, packed as a ZIP of about 3.43 MB; F731U is the US version of the Galaxy Z Flip5. The name carries no revision information.

Repair guide in PDF form for the ASUS UX31E ultrabook, 625 KB, catalogued with schematics.