Schematic for Apple model A2141 with logic board 820-01700, a 2.97 MB PDF. The document covers power rails, sequencing, and signal nets across the board, and is used to…

Audio Pro A101 service documentation in PDF form, about 3 MB, with the int-sm tag pointing to an international service manual version.

2.1 amplifier schematic attributed to Amiru, a compact 98.7 KB PDF. The name gives no details about the ICs or power level, so the diagram itself must be read for…

Troubleshooting guide in PDF form, 2.28 MB, with no brand or model stated in the name. Sections of this kind in service manuals usually present fault flowcharts for…

Schematic PDF for Quanta board DA0R05MB8D2, project code R05, at revision D. DA0xxxMBxxx numbers belong to Quanta, an ODM that builds boards for several laptop brands…

Sony schematic for the MEX-BT5000 car stereo with Bluetooth, provided as a 6.75 MB PDF with no version indicated.

Service schematic in PDF form for the TH50PV80D, a 50-inch plasma television model, about 10 MB.

Schematic in PDF, 889 KB, carrying only the label X61, with no manufacturer, board number or revision given in the name.

Schematic of 1.58 MB in PDF, labelled X51C together with T12C; these look like project codes, but no brand, board number or revision is given, so verify the target board…

Schematic in PDF for an HP laptop on Quanta board G34A, number DAG34AMB6D0, in a 1.78 MB RAR archive.

Schematic material for the G925F, the Galaxy S6 edge, compressed into a small 384 KB ZIP.

Schematic in PDF form, zipped to 1.24 MB, for laptop board 6050A2355301-MB-A03 at revision A03.

Toshiba Satellite L500 schematic for the board design identified as Perugia10M. The name gives no revision or chipset, so compare the project name printed on the…

MSI MS-7298 motherboard schematic, compressed into a RAR file of about 989 KB. The name offers no revision, chipset or other variant detail, so check the revision…

Full schematic for the Apple iPhone X in PDF format, 14.3 MB. It covers the logic board circuitry including power management, charging, baseband, NAND, display, camera…

Schematic for the second-generation Motorola Moto G (Moto G2), covering models XT1063, XT1068 and XT1069.

Schematic of the Samsung BN44-00497A power supply unit, a 2.11 MB PDF. The BN44 prefix is Samsung's numbering for TV power boards, and the A suffix is the revision to…

PDF schematic for the Osaka platform board 6050A0059801, revision MB-A01, marked CS1 with part code TC7778zba000 and an early 2004 date code.

Nokia E66 slider phone schematics in a 979 KB PDF. The name gives the model only, with no board number or revision, so match the main board label against the drawings…

Circuit schematic for the classic Nokia 6210 handset, saved as a 779 KB PDF document. For older phones like this, diagrams are especially useful because replacement…

Second PDF copy of the Quanta AT5 motherboard schematic, revision R1A, about 1.22 MB. AT5 follows the project-code pattern of Quanta, the ODM that manufactures laptops…

Schematic archive named only M33, with no brand given, a 940 KB ZIP. The name is too brief to identify the device reliably; it may be a phone model code, but that is not…

CD4017 document in PDF form, 81.0 KB, for the CMOS decade counter with ten decoded outputs.

PDF reference for the 2SD1852, a 2SD-series NPN bipolar transistor, about 96.5 KB and more likely a component datasheet than a circuit diagram.

Datasheet for the 4N38 optocoupler, marked as revision 2 in the name and supplied as a 294 KB PDF filed among schematics.

Revision 5 of a datasheet for the 4N25 optocoupler, a 281 KB PDF. The 4N25 is one of the oldest and most common phototransistor-output isolators, often found in power…

Datasheet for the 2SD2117, filed as a schematic but actually a component specification in PDF form, about 67.5 KB.

A compact 30.6 KB PDF tied to the 2SD1666 part number, catalogued among schematics. In Japanese JIS designations, 2SD stands for an NPN bipolar transistor meant for…

A 53.3 KB PDF for the 2SD2071, with an E suffix in the name whose meaning is not stated.

Very small 22.2 KB PDF relating to the 2SD1999, filed as a schematic. The name offers nothing but the part code, which follows the JIS scheme where 2SD denotes an NPN…

An 88.2 KB PDF titled 2SD1884, indexed in the schematic section but, judging by the bare part number, a datasheet for that transistor.

PDF documentation, 32.7 KB, for the 3SK269, indexed under schematics. The JIS code 3SK marks an N-channel field-effect transistor with four terminals, generally a…

A 30.6 KB PDF for the 2SK3278, indexed as a schematic but holding component reference data.

Component datasheet for the 2SK2661, a 385 KB PDF that is indexed as a schematic. Under JIS naming, the 2SK prefix marks an N-channel field-effect transistor, so look…

A 30.5 KB PDF for the 2SK2631, filed among schematics though the number is a JIS N-channel FET designation, meaning the content is a component datasheet.

A 322 KB PDF datasheet for the 2SK2613, indexed under schematics. The 2SK prefix is the Japanese JIS registration for N-channel FETs, and the file size points to a…

Very small 32.3 KB PDF titled 2SK2383, listed in the schematic category but most probably a short datasheet or summary sheet for an N-channel field-effect transistor, as…

Only 29.3 KB, this PDF named 2SK2380 sits under schematics but is most likely a brief datasheet for an N-channel FET, per the Japanese JIS 2SK prefix.

The part number 2sk2210 is the sole clue to this 33.6 KB PDF, catalogued under schematics but most likely a short component datasheet.

The 2SK2129, a JIS-registered N-channel FET, is the only thing the name identifies in this 32 KB PDF.