Datasheet for the LM317 adjustable positive voltage regulator in a 334 KB PDF. The regulator sets its output from about 1.25 V upward with two resistors and supplies up…

Russian-language PDF on the marking of electronic components, as the transliterated title Markirovka elementov REA indicates, filed under schematics but really a general…

Soft start circuit schematic, saved as a 1.78 MB PDF; the note in the name indicates it was converted from another format.

Datasheet for the SN74123N, a dual retriggerable monostable multivibrator with clear, in a plastic DIP package, provided as a 27.5 KB PDF.

Component placement drawing for the Apex AX 20 amplifier board, a 61 KB PDF. It shows where each resistor, capacitor, transistor and connector sits on the PCB, which…

Component placement drawing for the Xiaomi Redmi 6 and Redmi 6A phones, supplied as a PDF in a RAR archive.

PDF datasheet for the ICL8038 precision waveform generator and voltage-controlled oscillator, a classic chip giving simultaneous sine, square and triangle outputs.

PDF reference of about 794 KB for the HCF4047B, a CMOS 4000-series low-power monostable and astable multivibrator.

Power adapter schematic in PDF format, labelled only app177, which may be an application note or design reference number.

Spanish basic electronics guide, a general introduction rather than a schematic for any specific equipment. The name gives no device or board number.

PDF schematic for the Lenovo motherboard NM-A931, an LCFC board number, with no model or revision stated in the file name.

Schematic PDF of 265 KB with an uninformative numeric name, 0001534, offering no brand, model or board number.

Short Spanish PDF on schematic nomenclature, 21.2 KB, not tied to any device. It likely explains the designator prefixes and symbols used in diagrams, such as R for…

Schematic for the Biostar A78DD-M2T motherboard, packed as a PDF in a 910 KB RAR archive.

Datasheet in PDF for the ICL8038, here likely an Intersil version given the I in the name, a precision waveform generator and voltage-controlled oscillator producing…

Set of reference photographs of the ASUS X54L notebook motherboard, revision 2.0, packed into an 8.81 MB RAR archive.

ZIP archive of 261 KB holding a boardview for the ASUS P5LD2 MQ motherboard; no board revision is given in the name, so compare it with the revision silkscreened on your…

PDF schematic titled X60, 1.83 MB, with no brand, board number or revision stated in the file name.

XR2206 datasheet in PDF, the Exar monolithic function generator IC widely used in kit signal generators for sine, square, triangle and ramp outputs.

Topic 2 of a Spanish smartphone repair course, covering basic electronics, as an 817 KB PDF that appears to duplicate the unnumbered copy. No device or board is named.

Schematic for the Huawei Mate 10 Lite smartphone, model code HL1RNEAL00M, delivered as a RAR archive.

Portuguese-language PDF guide whose title translates to How to Test Electronic Components, 620 KB in size.

PDF documentation for the Texas Instruments BQ24735 notebook battery charger controller, 1.48 MB, catalogued as a schematic.

Training PDF about SMD surface-mount components, numbered 31 in what looks like a course series, about 998 KB in size.

Schematic package for MSI graphics board MS-V328 revision 31, in decrypted PDF form with reference 00017967, size 895 KB as a RAR.

Quanta FM6 notebook schematic, 1.79 MB. The name gives only the ODM and the board code, with no revision or laptop model, so check the version shown inside the document…

Electronics-for-beginners guide in Spanish, a 5.77 MB PDF filed under schematics but by its title an educational text rather than a device diagram.

Collection of photos of an HP motherboard with the code X8C, PCB DA0X8CMB6E revision E, packed as a 13.5 MB RAR.

Datasheet for the LM555 timer, the classic 555 IC, as a 231 KB PDF file. It covers pin functions, electrical characteristics and the standard monostable and astable…

Persian-language PDF whose title translates roughly as how to test electronic components.

ECS motherboard schematic for the G420, supplied as a 1.22 MB PDF with no revision stated in the name.

Basic electronics course in PDF form attributed to Humphrey Kimathi, 4.45 MB, filed under schematics but in practice a learning text.

Photo archive for MSI motherboard MS-16V41, about 38.5 MB, presumably containing pictures of the board rather than schematics or firmware.

Bill of materials for the ASUS A8S notebook, delivered as a 123 KB RAR archive. A BOM lists the parts fitted to the mainboard with reference designators, values and…

Schematic PDF of the MSI MS-V328 graphics card, revision 6.1, 670 KB. It lays out the VRM for the GPU and memory, power sequencing, PCIe and auxiliary power inputs…

Board layout file for V330 revision 61, most likely 6.1, stored in .cad boardview format at 3.41 MB.

PDF schematic labelled only 19A89, a code that likely refers to a board or project number, with no brand, model or revision given in the name.

Schematic diagram set for the ASUS UX31A2 ultrabook, revision 2.0, compressed into a 974 KB RAR archive.