Schematic for the IBM ThinkPad A31, a 1.00 MB PDF whose name gives only the model. No board number or revision is mentioned, so compare the PCB markings with the…

Motherboard schematic for the K42JV notebook, revision 2.0 as stated in the file name, supplied as a 2.44 MB PDF.

Schematic for the ASUS Eee PC T91, with R12G in the file name most likely indicating a board revision, though that is not stated explicitly; the PDF is 597 KB.

Mainboard schematic tagged HK5 with the note mb-pvt-0202a, indicating a production validation test build and an internal date or version code; no brand or board number…

Schematic for the ASUS K42JR laptop, revision 2.0, as a 2.69 MB PDF. No motherboard code is given, so confirm the revision printed on the PCB matches 2.0 before relying…

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…

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

PDF for the KIA324P, a KEC quad operational amplifier compatible with the widely used LM324, in a DIP package as the P suffix suggests.

The 2SC4163 part number is all this 98.9 KB PDF name reveals, so although labelled a schematic it is best read as a transistor datasheet.

Named only 2SC4161, this 98.6 KB PDF is categorised as a schematic yet, judging by the part number, documents an NPN bipolar transistor under the JIS designation scheme.

Reference PDF for the 2SA1127 transistor, 41 KB, filed in the schematic category, with an _E suffix in the name whose meaning is not stated.

Toshiba-style part number 1SV264 names this 65.3 KB PDF, which the index lists under schematics.

The name 243NQ gives only a part family prefix with no suffix, so this 45.4 KB PDF probably covers a whole series of power rectifier devices in one datasheet, despite…

A small 209 KB PDF filed under schematics, named only with the number 28101 and no brand, model or board revision.

The 80RIA name on this 191 KB PDF refers to a series of power semiconductors rather than a circuit board, and although it is filed as a schematic, a component datasheet…

PDF document of 202 KB named 25CTQ, a series-style code with no voltage suffix, so it probably covers a family of related components in datasheet form.

PDF schematic identified only as X200, with no brand, board number or revision in the file name. The 719 KB document should be opened in any PDF reader.

PDF schematic for Sony motherboard MBX-250, 1.68 MB in size, with no VAIO model or revision given in the name.

Schematic in PDF form for the IBM ThinkPad R40 laptop, roughly 1.45 MB. The file name gives no board number or revision, so compare page headers with the markings on…

Schematic package in zip format, 2.22 MB, with a name that suggests the Samsung Galaxy J4 (SM-J410F/G), although the brand is not stated in the file details.

Service guide for the Samsung SM-G532F (Galaxy J2 Prime), revision 2.8, in a 2.98 MB PDF.

PDF document of 1.29 MB whose numeric file name gives no hint of the device, board number or content, although it is catalogued as a schematic.

Schematic in PDF form, 11.2 MB, for motherboard LA-D562P, a board number following the Compal pattern; the name gives no laptop model or revision.

Power supply schematic in PDF for the Sony EX2T TV chassis, 761 KB. It covers the PSU section only, useful for diagnosing a set that does not power on, clicks or shuts…

Toshiba Satellite C650 schematic for Inventec platform MAS10, board 6050A2355201 revision A02, in a 636 KB PDF.

Samsung SM-A10 audio schematic covering microphone, speaker and earpiece, provided as a 2.25 MB PDF.

Microsoft Surface Pro 5 schematic in PDF form for board M1007506-015, revision U22. It documents the logic board circuits, useful for tracing power rails, checking the…

Quanta schematic for the ZR3 board project, provided as a 1.04 MB PDF without a revision in its name.

Schematic for the Quanta KL9A laptop motherboard, a 1.02 MB PDF with no revision or retail model in the name.

A generic PDF schematic of 3.41 MB whose name gives no model, brand or board number. Open it in any PDF reader and look at the title block on the first pages to learn…

Schematic PDF for motherboard NM-C131, an LCFC board number; LCFC is the Lenovo-owned ODM that uses the NM- prefix.

Schematic PDF for the ARDOR Gaming RAGE R16-R7ND403 laptop, 3.55 MB in size. The name gives no board number or revision, so check the title block inside against the PCB…

Lenovo schematic for LCFC board NM-C581, supplied as a PDF inside a 2.58 MB RAR archive.

Apple MacBook logic board schematic for project code M42C, labelled MLB (main logic board), in a 1.21 MB RAR archive.

Schematic PDF for HP, titled Quanta G7AL with the r2G marking, linked to Quanta board DAG7GDMB8C0, 4.26 MB.

Production-stage schematic for the Inventec board 6050A2394701 from the Clash UMA project, revision A01 at PV (production validation), dated 2010-11-05.

Service schematic in PDF form covering the Clevo N150ZU, N151ZU and N152ZU notebook family, packed in a ZIP of about 5.83 MB.

Schematic PDF for the Samsung Galaxy A20, model SM-A205F, packed inside a 4.06 MB RAR. Samsung phone schematics are commonly used to follow power rails from the PMIC…

Schematic for the Apple board 820-4550, revision suffix -03, supplied as a 544 KB RAR archive that contains a PDF according to the name.