PDF schematic labelled UL20A, a 1.32 MB circuit diagram for the notebook mainboard carrying that model designation; the name gives no board number, revision or brand.

Sony laptop schematic in PDF for the Quanta-designed GD1B platform, carried under Sony board number MBX-177A.

Schematic for Sony motherboard MBX-187, also carrying the IRX-5040 code, delivered as a compact 735 KB PDF.

Schematic for Compal function board LS-4498P, part of the KAL90 project, revision 1.0, in a 24 KB PDF.

Asus X550DP repair guide as a 508 KB PDF. The file name names only the model, without a motherboard revision.

Schematic for the Quanta LX89 mainboard at revision R1A, provided as a PDF of about 2.90 MB.

Schematic diagram for the Apple iPhone 4S, supplied as a 1.34 MB PDF. It is useful for following signal paths and supply lines, locating the circuits behind faults such…

PDF schematic for the HP EliteBook 8540p and 8540w family as named, built on Compal board LA-4902P, revision 1.0.

Schematic for the Dell Latitude 5401, Compal board LA-H171P with the project code EDC42, a Coffee Lake-H platform with UMA graphics, board revision A00 dated 2019-03-20.

Schematic in PDF for the Gigabyte H410M H V3 desktop motherboard, revision 1.1. The drawings cover the circuits of this board, so a technician can follow CPU and memory…

Schematic PDF for the HP TX1000 notebook. The file name gives only the model, with no board number, ODM project code or revision, so confirm the motherboard markings…

Schematic PDF named only 6910p, which points to the HP Compaq 6910p business notebook, though the file carries no board number, ODM name or revision.

Small 197 KB PDF for the Gigabyte GA-Z170X-Gaming G1, revision 1.0, labelled as boardview despite the PDF format.

Reference PDF for the 74LVC00A quad 2-input NAND gate, a larger 517 KB edition that likely includes several package options and detailed timing tables.

PDF for the 74AC00, a quad 2-input NAND gate in the advanced CMOS family, 302 KB, catalogued as a schematic; the name drops the digit before input, but the part number…

PDF for the KA4558, a dual operational amplifier in the KA series, equivalent in function to the familiar 4558 dual op amp, size 121 KB.

PDF reference on the 2SC4517 transistor, the name noting it as NPN; the file is 26.9 KB and indexed as a schematic.

Reference for the FGH40N60SFD IGBT, with the name stating 40 A and 600 V, supplied as a 463 KB PDF.

Schematic package for Samsung model A047F, which matches the Galaxy A04s numbering, in a 2.01 MB ZIP archive.

Named 3LN02C, this 41.8 KB PDF is filed among schematics but its name is a component-type code with a C suffix and gives no device or board details.

Another copy of documentation for the 2SD1458 NPN transistor, stored as a 48.8 KB PDF under a lowercase file name.

A fairly detailed 200 KB PDF for the 2SD2352, a JIS-numbered NPN transistor, where the 2SD prefix denotes NPN low-frequency parts.

Stored under a lowercase name, this 52.3 KB PDF covers the 2sd2318 transistor. In the Japanese JIS scheme the 2SD series contains NPN devices for low-frequency duty, so…

PDF reference of 221 KB for the 2SK2909, catalogued as a schematic. Only the part number is present in the name, with no maker or revision indicated.

A 135 KB PDF covering the 2SK2711 transistor. The extra 1-5 token in the name is not explained and may point to a page range or document revision.

Component document for the 2SK2611, a part number in the Japanese JIS scheme where the 2SK prefix marks an N-channel field-effect transistor.

Only the part number 2SJ512 appears in the name of this 455 KB PDF, which the index lists among schematics.

At just 31.4 KB, the PDF named 2SJ499 is probably a short datasheet or summary sheet, even though it is filed as a schematic.

The 2SJ419 is covered by this 100 KB PDF, filed under schematics though the part number points to a discrete transistor datasheet.

Catalogued as a schematic, this 93.1 KB PDF is named only after the part number 2SJ281, which follows the Japanese JIS scheme where the 2SJ prefix denotes a P-channel…

Indexed as a schematic, the 44.5 KB PDF named 2SD1328_E should be a datasheet for the 2SD1328, which the JIS 2SD prefix identifies as an NPN bipolar transistor for…

PDF document of 41.7 KB for the 2SC4737, filed in the schematic category but named after a part rather than a board.

The name 2SC4172 is a Japanese JIS semiconductor designation, so this 109 KB PDF, though filed as a schematic, should be the reference sheet for an NPN bipolar…

The largest of this group at 334 KB, this PDF is named only 2SC4117 and, while labelled a schematic, should be the datasheet for that NPN bipolar transistor under…

Small 30.5 KB PDF for the 2SC5808 part, an NPN bipolar transistor per the Japanese 2SC designation.

Datasheet-sized PDF of 38.0 KB for the 2SC5474, with an _E suffix in the name that likely marks an English edition; that reading is an inference.

A 129 KB PDF filed under schematics, though its name, 2SC3807, is simply a transistor type number.

Covering the 2SC3599, this 124 KB PDF is a discrete transistor datasheet even though it is filed as a schematic.

Datasheet-style PDF of 87.7 KB labelled 2SC3400, listed in the schematic section of the index.

At 192 KB this PDF is somewhat larger than its neighbours and covers the 2SC3142 transistor, an NPN bipolar part under JIS 2SC numbering.