A 229 KB PDF filed as a schematic, though its name, 25RIA, reads like a semiconductor part number rather than a board number, so the content is most likely a component…

Catalogued as a schematic, this 58.1 KB PDF concerns the Catalyst 24WC03, a small I2C serial EEPROM, and in practice is its datasheet.

Short PDF of 76.2 KB covering the 24C16, a 16 Kbit (2 KB) serial EEPROM accessed over the two-wire I2C bus.

Datasheet in PDF covering the 24AA512, 24LC512 and 24FC512 serial EEPROM family, filed here under schematics.

Small PDF of about 74 KB named 8EQ045, filed under schematics. The name looks like a power diode part number, likely a Schottky-type rectifier in International Rectifier…

English PDF on testing electronic components, filed under schematics but in practice a general reference rather than a circuit diagram for a particular board.

Spanish-language PDF offering ten tips for a technician who is developing their skills, about 152 KB.

Electrical part list in a 354 KB PDF; the generic name does not say which device or brand it covers, so check the header inside.

Circuit diagram for the Quanta Z07 notebook mainboard, revision 1A, in PDF form at about 1.04 MB.

Lenovo schematic in PDF form, labelled only with the code 80A, so the exact model and board number cannot be confirmed from the name.

Service schematic for the Samsung Galaxy SM-J415F, board revision 0.4A, supplied as a PDF inside a RAR archive.

Schematic in PDF form for the Gigabyte GA-P61A-D3 motherboard, revision 3.0, packed in a 937 KB RAR archive.

PDF schematic of 1.16 MB for a device named A3000. The name gives no brand, board number or revision, so confirm the model against the hardware before relying on part…

Schematic labelled A102D, stored in a 2.82 MB RAR; the name gives no brand or further board detail, so the exact device should be confirmed against the PCB markings.

PDF circuit diagram for the N83B variant, tagged PV with a 0201 code, most likely the production validation stage and a date or revision.

Schematics for the Huawei Ascend Y600, model Y600-U00, in a 2.07 MB zip. The pages should cover the power management IC, charging circuit, battery connector, display…

Circuit schematics for the Xiaomi Mi 8 SE handset, stored as a 4.07 MB RAR archive. Only the model is named, with no board number or hardware revision.

PDF schematic of the MSI MS-7393 mainboard, revision 0B, with the code 070910K1 in the name, which looks like a date stamp with a K1 build tag.

Schematic for MSI MS-7314 at what appears to be version 2.0, with date code 0822, delivered as an 857 KB PDF. MS-7xxx is MSI's desktop motherboard numbering.

Lenovo S560 mobile phone repair pack holding a schematic diagram and a service manual, compressed into a small 238 KB RAR.

Schematic drawings for the Jetway 694TAR motherboard, revision 1.0, saved as a 517 KB PDF.

Compal LA-2361 mainboard schematics, revision R1.0, in a 1.11 MB RAR archive. Only the ODM code and revision are given, so the retail laptop model must be identified…

Schematic for the Samsung SM-J530F handset, delivered as a 4.73 MB PDF without a revision stated in the file name.

Circuit schematic for the ASUS F5R notebook, revision 2.0, in a 2.89 MB PDF. It is intended for board-level diagnosis: following power rails from the DC jack and…

Schematic for the HP Pavilion G4 laptop, based on the Quanta R13 design with motherboard DA0R13MB6E0, supplied as a zipped PDF.

Circuit schematic for the Nokia 6121 mobile phone, supplied as a 3.73 MB PDF. The name gives no board revision or part number, so compare the layout against the phone on…

Schematic for the Sony PCG-FR130, which uses the MBX-80 motherboard. MBX is Sony's board numbering, printed on the PCB, and confirming it along with the revision matters…

Lenovo ThinkPad schematic for board NM-A151 in PDF form, 1.79 MB. The NM- numbering belongs to LCFC, the Lenovo ODM behind many ThinkPad boards.

PDF schematic for the HP nx6320 laptop, around 1 MB in size. The name gives no motherboard number or revision, so compare the board identifier printed on the PCB before…

Schematic PDF named only CD731a, about 526 KB, with no brand, model or revision information in the name.

PDF reference, 35.6 KB, for the 2SK2276, a Japanese JIS-registered device where the 2SK prefix indicates an N-channel field-effect transistor.

Small 33.2 KB PDF covering the 2SK1478, written in lowercase in the original name. The 2SK prefix belongs to the Japanese semiconductor designation for N-channel…

The 2SK690 is named here, and the 2SK prefix marks a Japanese-registered N-channel FET, so this 32.6 KB PDF is best treated as a part datasheet even though it is filed…

The 2SK445 part number is all the name provides for this 89.6 KB PDF, filed as a schematic but best treated as a datasheet, as 2SK numbers designate N-channel…

The 90.8 KB PDF is named only 2SJ273, a part number in the JIS series used for P-channel FETs.

Bearing only the part code 2SJ264, this 101 KB PDF relates to a P-channel FET, as the JIS 2SJ prefix designates that transistor type.

Listed as a schematic, this 246 KB PDF carries the name 2SJ201, a JIS part number for a P-channel FET, so it is best treated as a component datasheet.

The 2SC4071 is the subject of this 47.7 KB PDF, which sits in the schematic category although the name suggests a single-component datasheet.

Indexed as a schematic, this 55.8 KB PDF actually names a discrete part, the 2SC3930, followed by an _E suffix.

A 58.1 KB PDF labelled as a schematic and named after the 2SC1215, an NPN transistor by Japanese JIS naming, so it should be the datasheet for that discrete part.