Schematic set for the Compal LA-4991P board, revision 1.0, packed in a 734 KB RAR archive.

BIOS archive for the HP and Compaq G42, CQ42 and G62 notebooks with Intel Core i3 and i5 processors, 1.66 MB in RAR form.

Service schematic in PDF form for the Dell Latitude D630, drawn for the Compal LA-3301P mainboard. Any PDF viewer opens it.

BIOS dump archive for the ASUS U56E laptop, in a version with an Intel Core i5 processor and the HM65 chipset, according to the name.

BIOS firmware archive for an HP desktop motherboard identified as H-POPEYE-H61-uATX, with the name pointing to revision 2.10 of the board.

Schematic PDF covering the SM4375 chip, with an extra SM43 tag in the name that appears to repeat the family code; it is the same size, 1.57 MB, as another SM4375 file…

BIOS binary for the Lenovo V330-15IKB and V330-15ISK, platform LV315KB, motherboard 17807-3M.

PDF reference for the 74HC595, an 8-bit shift register with storage latches and three-state outputs, at 367 KB, filed under schematics.

Small 57.3 KB PDF for the 2SC5060, filed under schematics though the name suggests a transistor part sheet.

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

Reference document for the 2SD2249, a part in the JIS 2SD family of NPN low-frequency bipolar transistors, saved as a 45.3 KB PDF.

At 312 KB, this PDF for the 2SD2638 is the largest in its series and is probably a full datasheet with curves and outline drawings, though it is filed under schematics.

Filed under schematics, the 39.8 KB PDF 2SD2441 with an E tag refers by its JIS-style 2SD prefix to an NPN bipolar transistor.

A 111 KB PDF for the 2SD2281, which under the Japanese JIS system is an NPN transistor from the low-frequency 2SD series.

The 2SK2854 transistor is documented in this 125 KB PDF, indexed under schematics but almost certainly a datasheet. The name states only the part number.

Datasheet-style PDF of 142 KB for the 2SK2299N, listed as a schematic. In JIS nomenclature 2SK identifies N-channel field-effect transistors, and the trailing N is part…

PDF of about 295 KB for the 2SK1827. In JIS part numbering, 2SK stands for an N-channel FET, so the content should be a datasheet rather than a board-level drawing.

For the 2SK664 transistor, this 34.9 KB PDF is indexed as a schematic but, judging by the JIS 2SK naming used for N-channel field-effect transistors, it is a datasheet…

Datasheet-style PDF of 44.0 KB for the 2SC4391, filed as a schematic; the trailing _E suffix in the name is not explained and could denote an edition or language…

Datasheet-style PDF for the 2SC4271 transistor, catalogued here under schematics and weighing 78.2 KB. The name gives only the part number, with no maker or revision.

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 2SC4881, 183 KB in size, categorised under schematics. Only the part code is given, which in JIS naming indicates an NPN bipolar transistor; maker…

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

File name 2SC3786 offers nothing beyond a transistor type number, and the 81.5 KB PDF is placed in the schematic category.

Component document for the 2SC4809 transistor, filed under schematics but by its name and small size most likely a manufacturer datasheet.

Data for the 2SC3576, an NPN transistor per the JIS 2SC designation, supplied as a 108 KB PDF and filed among schematics.

Covering the 2SC3547A, this 288 KB PDF is a transistor datasheet indexed in the schematic section.

Small 39.7 KB PDF for the 2SC3526, carrying an _E suffix in its name whose meaning, perhaps a language edition or document revision, cannot be confirmed from the name…

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

Indexed under schematics, this 223 KB PDF takes its name from the JIS part number 2SC2960, an NPN bipolar transistor designation.

Bearing only the JIS part number 2SC2879, this 167 KB PDF is listed as a schematic. A 2SC designation marks an NPN bipolar transistor, so the file most likely contains…

Indexed as a schematic, this 27.0 KB PDF names the 2SB633P, a PNP transistor under JIS numbering; the P suffix is probably an hFE gain rank, a common convention for…

PDF datasheet covering the 2SB1651 PNP transistor, 40 KB. The _E suffix most likely denotes an English edition of the manufacturer document, though the file name does…

Datasheet PDF covering the 2SA1588, 215 KB in size, which suggests several pages with curves and package details.

Part documentation for the 2SB1287 in a 63.5 KB PDF; the 1-2 in the name probably marks pages one and two of the sheet. No device or board details are included.

Datasheet PDF for the 2SB1274, 34.4 KB in size and likely a concise sheet. The name offers only the part number.

The 2SA1930 is covered in this 190 KB PDF, which carries no detail besides the part number and is probably the component datasheet rather than a schematic.

Compact PDF, 45.7 KB, named 2N2102 and catalogued under schematics. The 2N prefix belongs to the JEDEC scheme for discrete semiconductor parts, so the document is most…

PDF datasheet of 73.0 KB for the 2N2906 transistor, stored in the schematic section of the index.

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.