Schematic diagram for the Samsung NP-R423 laptop, supplied as a PDF of about 1.1 MB. Apart from the model, the name carries no board code name or revision, so confirm…

PDF document for the 2SC4853, a part number following the Japanese JIS scheme in which the 2SC prefix marks an NPN bipolar transistor.

A compact 19.1 KB PDF for the 2SA1580, small enough that it is probably a one- or two-page summary sheet. No other details are present in the name.

Catalogued as a schematic, this 49.4 KB PDF carries only the code 60LQ045 in its name, with no brand, device model or board revision.

An 85 KB PDF named 10BQ100, catalogued as a schematic but following the part numbering of a surface-mount Schottky diode family in the International Rectifier and Vishay…

Schematic set in PDF format, packed in RAR, for Compal boards LA-H482P and LA-H492P. LA-xxxxP numbers follow Compal's scheme, so the boards may ship under various laptop…

PDF schematic whose short name points to the A127F, most likely the Samsung SM-A127F, a variant of the Galaxy A12.

Circuit diagram for the Quanta AT5 notebook motherboard, a 1.22 MB PDF. The file name gives no revision, so compare the sheets against the silkscreen on your board…

Quanta Y0HB schematic as a PDF of about 1.07 MB. The project code follows the Quanta convention of short alphanumeric names, and the board itself usually shows it within…

PDF schematic for the Quanta AM9A board, roughly 1.51 MB. The name gives the Quanta project code only, with no revision, laptop brand or model, so the title block and…

Quanta schematic shared by the HP Compaq nx9000, nx9030, nx9040 and Presario 2100, with board number 31KT7MB0067.

PDF guide on inverter protection, 579 KB, filed with the schematics; the name gives no brand, model or board number.

Schematic for MSI's MS-7295 desktop mainboard at revision 0C, shipped as a 1.08 MB PDF.

Reference values sheet in Portuguese for the Motorola Moto G5s, model XT1792, as a compact PDF of 192 KB.

Schematic for a board coded N83C, marked PV with a 0201A revision or date tag. PV normally denotes the production validation build, so it should be close to shipping…

Sony MBX-237 motherboard schematic in PDF form, about 2.7 MB. The file name gives only the board code, with no revision, ODM or laptop model stated, so the exact VAIO…

Top-layer placement drawing in PDF for the Xiaomi M1 mainboard. It maps component outlines and designators on the upper side of the PCB, turning a reference number from…

Huawei S7 schematics in PDF form, 1.80 MB. These circuit drawings let you trace power distribution, the charging path, the backlight driver and interface lines between…

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

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 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…

Reference sheet for the 2SA1182 transistor, stored as a 202 KB PDF. The 2SA prefix belongs to the JIS numbering system and identifies a PNP bipolar device, so the…

Small PDF reference, 47.7 KB, for the part 2PD601A, with the trailing 4 most likely the sheet revision.

Data sheet sized PDF of 45.9 KB named 2PC4617J, revision 2 judging by the suffix. The J suffix normally separates a package or variant from the base 2PC4617 part, which…

Short 49.9 KB PDF document for the 2N6284, a JEDEC-registered discrete semiconductor, catalogued as a schematic though it is most likely the part's datasheet.

Listed as a schematic, this 68.8 KB document carries the name 1SS378 and nothing else, pointing to a component data sheet for a small-signal silicon diode under the JIS…

Covering the range 5KP5.0 to 5KP110A, this 667 KB PDF is filed as a schematic but is named after a component series rather than a device or board.

Datasheet in PDF form for the 1.5SMC6.8A, a 1500 W surface-mount transient voltage suppressor diode in the SMC package with a nominal 6.8 V breakdown and the A suffix…

Schematic PDF with an uninformative single-letter name, so the device, brand and board number cannot be determined from the file name alone.

Schematic for the Dell Inspiron N4010 built on the Quanta UM8 motherboard, revision 1A, packed in a RAR archive of about 992 KB.

Quanta motherboard schematic for board DA0HK5MB6F0, a 2.15 MB PDF. In Quanta numbering, HK5 is the project name and the trailing characters mark the board version, so…

A compact 116 KB PDF named after the BQ24737, a Texas Instruments notebook battery charger controller.

PDF schematic named MS01, 1.17 MB; the name is too short to identify the brand, device or board revision with any confidence.

Schematic in PDF format for a design called R9550L, with V10 in the name most likely indicating version 1.0 of the drawing.

Quanta Y06 schematic, a 1.69 MB PDF whose name gives only the ODM project code, with no revision, brand or chipset listed.

Mainboard schematic for the Xiaomi Mi Max, a large-screen phone with code name hydrogen, compressed into a 1.62 MB ZIP file.

Schematic drawings for the Xiaomi Mi Play, code name lotus, distributed as a 6.22 MB ZIP archive.

Schematic for the Dynatech V4000 inverter, tagged Pappu and carrying the number 8720041200, which may be a contact or reference code rather than a board number.

Schematic for the Sony Vaio VGN-NW series laptop, motherboard MBX-218, in a 909 KB PDF.

Board map for the Huawei G6 phone, a small 101 KB PDF showing component placement rather than full circuitry.