RAR archive of 1.31 MB with an uninformative numeric name, 225, and no brand or model attached.

ASUS H61M motherboard schematic, a 761 KB PDF for a board built on the Intel H61 chipset.

Boardview in PDF form for the LV315GM_MB mainboard, Wistron number 17839-1M, provided in a 375 KB RAR.

Schematic in PDF form for the HP EliteBook 8470P and 8570P, Inventec project Calvin, discrete-graphics version, board 6050A2470001.

BIOS and EC-related package for the F550D / X750DP board, revision 2.0, noting an ITE IT8528E embedded controller and a Winbond 25Q32BVSIG flash chip, a 32 Mbit (4 MB)…

Schematic PDF of 982 KB for the Biostar G41D3C desktop motherboard, catalogued under the ECS brand.

Schematic PDF for the TP.MS608.PB831 universal LCD TV mainboard, with an FA prefix indicating factory or analysis material packaged with the circuit.

Firmware archive for the ASUS S530U and X530UN, board revision 2.0, tagged SR3LA and UMA.

Compal LA-1881 motherboard schematic, revision R1.0, packed into an 840 KB RAR archive.

ZIP archive of about 37 MB holding the RT809F programmer software dated 2019-05-08 in an English build.

Raw firmware file for the Intel D915GAG motherboard, 512 KB. The name lists the model and nothing else, so its BIOS version and origin are unknown.

A 199 KB PDF covering the AD7528, a dual 8-bit multiplying digital-to-analogue converter from Analog Devices with a shared data bus and a select line for each DAC.

Lenovo ThinkPad T490 and T590 schematic, project Drift, board NM-B901 at version 1.0, a 2.97 MB PDF.

Schematic set in PDF form for the MSI GP63 Leopard 8RE gaming laptop, listing boards MS-16P5 and MS-17C5 at revision 0A.

Full schematic for Compal LA-9984P at revision 1.0, in a RAR archive of about 1.54 MB. The file name gives only the board number and revision; the laptop brand, model…

PDF of 126 KB covering the 2SD1842, an NPN bipolar transistor in the JIS 2SD series, so the content is a datasheet rather than a board schematic.

Transistor reference for the 2SD2048, 78.9 KB, in PDF format and listed among schematics.

Filed among schematics, this 467 KB PDF carries just the transistor number 2SC4320 and should be regarded as its datasheet.

The largest of this group at 340 KB, this PDF for the 2SC5446 likely contains an extensive datasheet with many characteristic curves and detailed package drawings.

The 2SC3938 sheet arrives as a 46.3 KB PDF with an _E suffix, which on Japanese component documents typically signals an English edition.

Listed as a schematic, this 118 KB PDF is named only 2SC4863 and is most likely a component datasheet.

Complete datasheet for the ATmega165 AVR microcontroller, a 3.15 MB PDF. The document covers the pinout, memory, clock system, timers, USI, USART, ADC, JTAG, fuse bits…

Reference sheet for the 74AC04 hex inverter, an advanced CMOS logic part, supplied as a 301 KB PDF in the schematic category.

Datasheet for the 2N2222, the long-established general-purpose NPN switching transistor, as a 79.5 KB PDF.

Part number 1SS379 is the only detail in this file name, and the 70.0 KB PDF is most likely the specification sheet for that diode rather than a full device schematic.

An 8.00 MB BIOS image for an HP dv6 with AMD hardware, marked with the letter C and lacking a file extension.

Schematic in PDF form for the IQ1X0MS motherboard family, with the name listing Q170 and Q150 chipset variants and a 0F marking, likely a revision code.

Combined schematic set covering the Xiaomi Mi A1, code name tissot, and the Mi 5X, code name tiffany, two phones grouped in one 7.98 MB ZIP archive.

Quanta NL8K schematic in PDF form for board DANL8KMBAD0, with an internal title mentioning the MB B version, an NVIDIA N17P-G1 graphics chip and a 20161102 date.

Schematic for the Samsung Galaxy S7, model SM-G930V, supplied as an 8.53 MB ZIP. The V suffix marks the Verizon variant in the US, which uses a Snapdragon platform…

Desktop motherboard schematic for a G31T-LS board, version 1.0, in PDF format. The name points to an Intel G31 chipset design but gives no manufacturer, so check the…

PDF circuit diagram labelled for the HP DV3000 with an Intel platform; the name carries no board number or revision, so compare the pages against the motherboard…

Schematic covering the HP Pavilion DV4 and Compaq Presario CQ45 and CQ40, all sharing Compal board LA-4102P.

Schematic in PDF format for the Foxconn G31MX desktop motherboard, an Intel G31 chipset board, catalogued with the ECS brand tag.

BIOS image for an Inventec board code-named MA10M, part number 6050A2136101, revision A03, packed in a 651 KB rar.

ADM232 document from Analog Devices, a 371 KB PDF for the dual RS-232 driver and receiver with an onboard charge pump.

A 121 KB PDF named 2SK2170, listed among schematics but most likely the datasheet for that single device.

Indexed as a schematic, this 107 KB PDF refers to the 2SK1440, and the name states nothing beyond the part number.

Datasheet-type PDF of 110 KB for the 2SK1414, indexed as a schematic. Its 2SK prefix comes from Japanese JIS numbering and identifies an N-channel field-effect…