Schematic diagram and service manual for the Lenovo A820 smartphone, in a 643 KB RAR archive. No mainboard number or revision appears in the name.

Schematic diagrams for the Xiaomi Mi 1S, an early Xiaomi phone, in a 553 KB ZIP archive.

Samsung SM-J110H troubleshooting manual, apparently revision 7-1, provided as a 13.7 MB PDF.

PDF schematic for the ECS MB40IAX and MB40IA1 boards, revision B1, archived as a 1.68 MB RAR.

Jetway 630TCF motherboard schematic in PDF format, roughly 498 KB, with no revision number in the name.

PDF of 2.02 MB catalogued as a schematic, but the name sluuba6 says nothing about the device.

Small 291 KB PDF schematic referencing board number LA-A913P and the project codes ZAM80 and ZAM81, plus a 405MKD prefix of unclear meaning.

ASUS A3H notebook schematic, 1.07 MB in PDF format; the SC suffix in the name likely just marks it as a schematic.

Quanta SW5 laptop board schematic, revision 1A, in a 1.19 MB PDF document. The laptop brand and model are not stated, so identify the board by the SW5 project code and…

Schematic PDF of the Topstar C49 mainboard, revision A, 1.28 MB. Topstar is an ODM producing laptops for numerous rebranded models, so match the board code on the PCB…

Circuit diagrams for the Topstar D23I board, revision B, delivered as a 1.11 MB PDF. Beyond the model code and revision, the file name carries no chipset, CPU or ODM…

Compal schematic for board LA-B301P, revision 1.0, in PDF format. Compal labels its notebook motherboards with LA-xxxxP codes, which appear on the PCB silkscreen, while…

Schematics for the Compal LA-8971P mainboard, early revision R0.1, compressed into a 1.25 MB RAR file. The name gives no laptop model, only the Compal ODM board code.

Compal LA-1221 schematic at revision R4A, provided as a 969 KB RAR archive. A fourth-level revision suggests a mature release of this early Compal laptop board.

Service schematic for the Xiaomi Redmi 2X smartphone in PDF form, 3.39 MB. The file name names only the model, with no PCB revision or variant.

PCB drawing combined with a functional block diagram for the Xiaomi Mi 4S, provided as a 4.86 MB PDF.

Small 38.6 KB PDF showing the bottom side of the Xiaomi Mi 4 LTE board, based on the board_down label in the name.

Schematic document for the Huawei Honor 4x smartphone, provided as a 1.16 MB PDF; the name gives no board number or hardware revision.

PDF schematic for the IBM ThinkPad R31, around 1022 KB. No board number, revision or hardware variant appears in the name, so identification rests on the model alone.

Sony mainboard schematic for MBX-237, version 030 according to the name, delivered as a 2.68 MB PDF.

Sony board MBX-226 schematic, labelled M9A0 with an MP suffix that usually marks a mass-production release.

Acer Aspire 5220, 5220G, 5520 and 5520G schematic in a 744 KB PDF; the name gives no ODM, board number or revision, so open the title block to identify the mainboard it…

PDF schematic for the Xiaomi Redmi 6, the fourth part of a numbered set of documents, at 2.17 MB.

Schematic in PDF form for the Lenovo ThinkPad L560, project names AILL1/L2 and AILL2, built on Compal board LA-C421P revision 1.0.

Compal LA-G741P schematic at revision 1.0, supplied as a PDF inside a ZIP archive of about 4.89 MB.

Schematic in PDF form for a board identified as GM5ZGXW_12L version 1.0, with the token 7-76Q also in the name, archived as a 2 MB RAR.

Samsung laptop schematic for the Scala3 15 DC platform, covering the board numbers BA41-01761A, BA41-01762A, BA41-01763A and BA41-01764A.

Schematic in PDF for the Lenovo IdeaPad 710S-13ISK, built on Wistron board 15238-1 with project code LS710, revision SA, and the 448.07D05 PCB code shown in the name.

Compal schematic for the Lenovo IdeaPad G580, covering the QIWG5, QIWG6 and QIWG9 platforms with board numbers LA-7981P, LA-7982P and LA-7988P.

Quanta R13 schematic in PDF for HP Pavilion G4, G6 and G7 notebooks, covering board numbers DA0R13MB6E0 and DA0R13MB6E1 at revision E in the UMA version, meaning…

Reference sheet in PDF format, 236 KB, describing LVDS connector pinouts. The name names no device or panel model, so treat it as a generic guide to low-voltage…

The 2SD2634 transistor is described in this 30.7 KB PDF, classified as a schematic though the name points to a datasheet.

An 88.8 KB PDF describing the 2SD1806, filed in the schematic index although it is most likely a part datasheet.

A 169 KB PDF for the 2SD1803, placed in the schematic category but evidently a component reference sheet. No manufacturer, revision or variant is named.

Specification sheet in PDF format, 43.9 KB, for the 2SD2177A, the A-suffixed variant of the 2SD2177, with an additional _E tag in the name.

PDF sheet of 38.4 KB for the 2SD2575, with an _E suffix in the file name. Filed as a schematic, it most likely holds datasheet content, because 2SD is the JIS code for…

Component documentation for 5HP02M, delivered as a 40.7 KB PDF. Despite the schematic label, the name is a bare part number with no board or brand information, so treat…

Datasheet for the 5HP01N part in PDF form, about 27 KB. No device or motherboard is named; the code with an N ending appears to be a package variant of the 5HP01 series.

Component sheet for 5HP01C, a 26.8 KB PDF without any laptop, brand or board number in its name.

The 2SD1879 is documented in this 94.5 KB PDF, indexed as a schematic yet most likely a manufacturer datasheet for the part.