Code 50WQ06F is the only clue in this 38.5 KB PDF, filed under schematics and naming no laptop, brand or board.

A schematic-category PDF of 129 KB whose name, 50WQ04FN, identifies no device, board number or revision.

Catalogued as a schematic, this 232 KB PDF carries only the code 40CTQ045, which reads like a discrete semiconductor part number rather than a laptop board number.

Named 30WQ04FN and filed as a schematic, this 131 KB PDF most likely holds a component datasheet for a Schottky-type rectifier, based on the part-number format.

PDF reference sheet listed as a schematic and titled 28F512, a code used for 512 Kbit parallel flash memory of the 28F series.

Filed under schematics, this 97.5 KB PDF labelled 25tts-fp appears to be a component datasheet for a variant of the 25TTS power device series.

Alternative 135 KB PDF for the 25C02 code, its name differing from the other 25C02 sheet only by a trailing underscore.

The 24WC257 is a Catalyst Semiconductor I2C serial EEPROM, and this 55.6 KB PDF, though catalogued as a schematic, is almost certainly its datasheet.

PDF of 306 KB for the 24C04 serial EEPROM, with a P suffix that the name leaves unexplained.

PDF of 217 KB named for the 24C00, a very small I2C serial EEPROM of 128 bits (16 bytes).

A 144 KB PDF named 23c020, describing a component in the 23C series, which by usual convention are mask-programmed ROMs; 020 normally corresponds to 2 Mbit.

A schematic-category PDF of 223 KB named 20CTQ, without any device model, board number or revision in the name.

Filed under schematics, this 202 KB PDF carries only the code 20CJQ060, with no board, model or revision in the name.

Named simply 18TQ, this 180 KB PDF is catalogued as a schematic but appears to cover a component series rather than a board, since no voltage suffix, model, board number…

This 46.4 KB PDF named 16SYQ045C is filed as a schematic, but it refers to a component code rather than a board, with no model, board number or revision stated.

Catalogued as a schematic, this 114 KB PDF covers the 10ETF10 and 10ETF12 parts, two related devices in one document.

Document for the 10ETF02FP, 10ETF04FP and 10ETF06FP, three voltage grades that share one 208 KB PDF.

Schematic PDF for the Z96Fm board, revision 1.0, 4.60 MB, with no brand named. It documents power rails, signal routing and component designators and opens in any…

Compal LA-4101P mainboard schematic in a 1.12 MB PDF. The name holds only the board number, so neither the laptop model nor the revision is stated.

K42JR laptop motherboard schematic in PDF format, 2.30 MB, with no revision number in the name.

Schematic set for a board identified as AB540, delivered as a 1.47 MB ZIP archive that, per the name, contains a PDF.

Generic schematic PDF of 953 KB whose name gives no model, brand or board number, so the device it covers can only be identified by opening it and reading the title…

PDF document for the TPS51117, a Texas Instruments single synchronous step-down controller frequently used for laptop system or memory rails; the file is catalogued as a…

Service manual for an induction appliance, distributed as a 3.39 MB PDF and listed under schematics.

Board layout for BM5012 revision 1.3 supplied as a 178 KB PDF rather than a native boardview format, according to the name. No brand or model is stated.

MSI schematic in PDF form for board MS-17E71. MSI uses its own MS- numbering, where the digits identify the project and the last digit the board version.

Circuit diagram for the Quanta ZH1 board project, a 852 KB PDF with no revision indicated.

PDF schematic for the Gigabyte GA-H61M-USB3-B3 motherboard, revision 2.0, as shown by the R20 suffix.

PDF schematic of 212 KB titled USB, without any model, brand or board number in the name.

PDF schematic named scala3-14, which looks like an internal ODM project code, probably for a 14-inch platform, though no brand or board number is given.

Quanta schematic for the project coded NJF, supplied as a 7.17 MB PDF. Quanta Computer names its laptop platforms with short letter codes like this, and the code usually…

Schematic diagram in PDF form for the Samsung SM-A546B smartphone, 665 KB. Phone schematics show circuit blocks, power management connections, charging paths and…

PDF document filed as a schematic for the ISL88731A, which the name identifies only by the part number; it is the Intersil SMBus-controlled battery charger IC found on…

Gigabyte B450M DS3H WIFI desktop motherboard schematic, labelled R12 in a 1.43 MB PDF, most likely board revision 1.2.

Schematic for the Dell Vostro 3400 laptop, compressed as a RAR of about 1.07 MB. The name provides no ODM board number, revision or graphics variant, so check the title…

Studiomaster M1000 schematic, supplied as a 576 KB PDF. Studiomaster builds professional audio gear such as mixers and amplifiers, and a diagram like this is used to…

Schematic for an Inventec board, project RKY15DN, part number 6050A2412601-MB-A02, with 1228 likely a date code. The PDF is supplied in a 171 KB RAR.

Circuit schematic in PDF covering the ASUS FX505GM and FX705GM, the 15 and 17 inch TUF gaming models that share a design.

Schematic drawings for the early revision 1.0B of the Gigabyte GA-EP43-UD3L desktop motherboard, supplied as a PDF inside a RAR of about 1.32 MB.

Quanta R75 laptop schematic in PDF at revision 1A, with no board number or laptop brand given in the name.