The 2SJ339 appears in this small PDF of roughly 40.7 KB. The name carries only the part number, with no hint of the equipment it came from.

Datasheet PDF for the 2SC3931, 60.7 KB, with the _E suffix common to this group of files and listed as a schematic.

The 2SC3922 is the subject of this short 30.5 KB PDF, listed as a schematic with no suffix or revision in its name.

The 2SB1589 PNP transistor is described in this 40.1 KB PDF datasheet, with an _E suffix that most likely points to the English edition.

Catalogued as a schematic, this 40.7 KB PDF is named after the 2SA1540, a Japanese JIS-registered transistor part number, so it is most likely the component datasheet.

PDF for the 2SA1254, 43.0 KB, whose name ends in an E suffix that may denote a language or edition variant, though the file does not confirm that.

PDF datasheet of 52.2 KB for the 2N2369 NPN switching transistor, placed in the schematic section.

Datasheet-style PDF, 110 KB, carrying the part number 27l2048 and placed in the schematic category.

Datasheet in PDF form, 474 KB, for the 2SC5086 NPN bipolar transistor, indexed in the schematic category. The name lists no manufacturer, package or revision.

The 182 KB PDF bears the name 2SC5712, a JIS designation pointing to an NPN bipolar transistor, so it is presumably a datasheet despite the schematic label.

The name carries only the part number 2SK2127, an N-channel FET designation in the Japanese JIS system.

Component datasheet covering the 2SC3750, a JIS-designated NPN bipolar transistor, saved as a 101 KB PDF in the schematic category.

A 394 KB PDF for the 2N6836, with RE appended to the name, which may mark a revised edition but cannot be confirmed from the name alone.

Tone control circuit intended for a 2.1 channel audio system, in a 159 KB PDF. It shows the bass and treble adjustment network that sits between the source or preamp and…

Covering the 2SK2991, this 420 KB PDF is named only by part number, which points to an N-channel field-effect transistor in the Japanese JIS numbering system.

PDF document of 94.9 KB for the 2SC5299, a JIS-registered NPN transistor designation. Although catalogued as a schematic, files named after a part number like this are…

Compact 66.3 KB PDF named after the JEDEC part 2N6796, indexed as a schematic. Apart from the component code the name offers no model, brand or board details.

This 109 KB PDF, placed in the schematic category, is named for the 2N6388, a JEDEC-registered discrete semiconductor designation.

Component placement drawing for the Apex AX 20 amplifier board, a 61 KB PDF. It shows where each resistor, capacitor, transistor and connector sits on the PCB, which…

Speaker protection circuit for a 2.1 audio setup, a user-drawn design in a 139 KB PDF. Such boards normally delay relay engagement at power-up to stop thumps and…

Schematic of a 2.1 channel amplifier based on the TDA2030A, from Technical Mriganka, in a 416 KB PDF.

The smallest of this group at 71.8 KB, this PDF is named for the 2SC5250 NPN transistor and is likely a concise datasheet despite its schematic category.

An 87 KB PDF for the 2SC2412K, an NPN transistor named under the Japanese JIS convention with a K suffix.

Listed as a schematic, a 147 KB PDF titled with the JEDEC code 2N6760 and nothing more. No equipment model or board information is provided.

PDF procedure document dated 20170811 describing a firmware update for the MP2949 IMVP8 voltage regulator controller on the ASUS UX490UAR.

Component PDF for the 2N6847, 130 KB, indexed under schematics. The name holds only the JEDEC number, without a manufacturer, suffix or revision, so identify the source…

Datasheet-style PDF, 181 KB, for the JEDEC part 2N6251, filed in the schematic category.

Only the 2N4953 part number appears in the name of this 60.3 KB PDF, which sits in the schematic category but is likely a component datasheet.

Schematic in PDF for the Dell Latitude 3460, Wistron platform LOVE14 BDW, covering board 14290-2, with 14290-SC appearing as the schematic reference.

Early R0.2 revision schematics for the Compal LA-6321P board, stored in a 2.22 MB RAR archive.

A compact 33.1 KB PDF covering the 2SC3176, an NPN bipolar transistor by its JIS 2SC designation.

Compal LA-2921P board schematics at revision R4.0, in a 1.31 MB RAR archive. R4.0 points to a heavily revised, late version of the design.

Second copy of the ASUS K40IJ and K50IJ schematic set, revision 2.0, shared between both models as a 2.68 MB PDF.

Wistron schematic in PDF form, packed in RAR, for board 18803-2, with CFL in the name, which usually refers to Intel Coffee Lake.

Schematic in PDF form for the Apple iMac A1311, project K74, logic board 820-2784 with document number 051-8337, supplied in a 2.80 MB RAR archive.

Circuit schematics for Compal board LA-8641P at revision R0.2, packed in a 1.27 MB RAR file. The name does not say which brand or laptop model uses the board.

Schematic package for the Compal LA-2242 notebook motherboard, revision 1.0, compressed as a 1.85 MB RAR file.

Second file of the ASUS F3SC and F3SV schematic, revision 2.0, shared by both models in a 3.10 MB PDF.

Schematic for the ASUS UX562FD laptop, revision 2.0, built on the Intel Whiskey Lake platform, supplied as a PDF inside a RAR archive of about 2.86 MB.

Schematic set for board MS-V341 revision 1.2, delivered as a PDF inside a 689 KB RAR. Apart from number and revision, the name offers no product or chipset information.