Schematic diagram set for the Apple iPad 4 logic board in PDF form, about 1.49 MB. Technicians read it to trace power rails from the battery and charging circuit, check…

BIOS image packed in RAR for the HP ProBook 450 G3 on Quanta motherboard DAX63CMB6C0, about 4.5 MB compressed.

Gigabyte GA-H61M-S2-B3 schematic, revision 1.0, in PDF format at about 790 KB. The H61 micro-ATX board is drawn sheet by sheet, which lets a technician follow power…

BIOS archive for the HP Pavilion DV6640er, with Quanta AT referring to the board family made by the ODM Quanta.

Lenovo schematic labelled only with the code 80A, which gives little to identify the exact model, board number or revision.

Schematic PDF of about 915 KB labelled with the project code M9A0 and MP, which stands for mass production, so it should reflect the final board design.

Duplicate copy of the Quanta CT3 board schematic, revision R2A, a PDF of about 1.16 MB.

Alternate PDF copy of the Quanta AT8 motherboard schematic at revision R1A, about 1.03 MB.

BIOS firmware archive for the Fujitsu Lifebook AH531, about 2 MB compressed. The name gives no board number, revision or version, so confirm your motherboard before…

Small RAR archive, about 813 KB, holding BIOS firmware for the Dell Inspiron 1750 laptop; no board number, chip type or version is mentioned in the name.

Board view utility in a 225 KB RAR; the generic name gives no version, author or supported formats, so its exact identity is unclear until unpacked.

RAR archive of about 1.6 MB for the ASUS K54C motherboard, revision 2.1, listed as BIOS or firmware.

Firmware archive for the Compal board LA-6582P, about 1.7 MB packed, with no laptop model named.

Microchip PIC18F4550 datasheet in PDF form, about 6.74 MB. This 8-bit microcontroller is known for its built-in full-speed USB interface, so the document is useful when…

Datasheet in PDF form for the ICL8069, a low-voltage bandgap voltage reference diode of about 1.2 V, historically made by Intersil.

Datasheet in PDF format numbered 6262, about 1.05 MB, with no part number or brand stated in the file name.

Boardview in .cad format for the Compal LA-M191P motherboard, project code HH4U4, revision 1B, about 867 KB.

Small archive with very little in the name: 7320 points to a model number, most likely a Dell Latitude, and pw suggests password-related content, though neither is…

Windows executable named for DMI transfer on the HP 245 G6 laptop, about 9.9 MB in size.

BIOS dump for the Lenovo IdeaPad 100-15IBY on Compal board LA-C771P, marked as working, packed in a RAR of about 5.40 MB.

IRF640 MOSFET datasheet in PDF format, about 112 KB in size. It should provide electrical ratings, on-resistance, gate threshold, thermal resistance and package drawings…

Datasheet-style PDF for the 5LP02SP, about 42.2 KB and placed in the schematic category.

PDF covering the 3SK189, about 178 KB in size and listed in the schematic category, though the name points to a single component datasheet.

Part reference for the 3N250, stored as a PDF of about 43.6 KB and catalogued in the schematic section.

A 416 KB PDF covering the 2SK2610, a JIS-designated part whose 2SK prefix identifies an N-channel FET.

A 34.3 KB PDF for the 2SK1846 transistor. The 2SK prefix follows the Japanese JIS convention for N-channel FETs, so this is probably a part datasheet even though it is…

PDF of about 295 KB for the 2SK1827. In JIS part numbering, 2SK stands for an N-channel FET, so the content should be a datasheet rather than a board-level drawing.

Compact 42 KB PDF for the 2SJ340, catalogued among schematics although the name is a transistor part number. Nothing else about a device or board is stated.

ZIP archive of 7.69 MB labelled for the Apple iPhone 3GS. The name gives no detail about what is inside, and the relatively large size suggests several documents or…

Part-number reference for the 2SC4433 in PDF form, about 71.5 KB. The name gives no board or device, only the JIS designation, where 2SC denotes an NPN bipolar…

Covering the 2SC5028, this 219 KB PDF is filed as a schematic yet is named like a component datasheet.

Indexed as a schematic, this 195 KB PDF carries just the type number 2SC3803. In JIS semiconductor naming, 2SC stands for an NPN transistor, so the content is most…

Named after the JIS part number 2SC2816, this 50 KB PDF appears in the schematic category but most likely contains the datasheet of an NPN bipolar transistor, as the 2SC…

Component datasheet for the 2SB1644, a small 48 KB PDF catalogued under schematics. JIS numbering places any 2SB part among PNP bipolar transistors for low-frequency…

Small 39.6 KB PDF containing the datasheet for the 2sb1616, catalogued as a schematic entry.

PDF of about 39 KB for the 2SB1462J, a variant designation of the 2SB1462, with the _E suffix likely marking English text.

Catalogued as a schematic, this 51.9 KB PDF is named only 130hf, which tells little about its content: no device, board number or revision is stated.

Compact PDF of about 91 KB covering the 93C46 serial EEPROM, the 1 Kbit member of the 93-series Microwire family; the _3 suffix appears to mark a document revision or…

PDF catalogued as a schematic, though the name 27lc4096 reads like a component part number in the 27-series EPROM family, with LC usually marking a low-voltage CMOS…

A 143 KB PDF titled 30CPU04, a part-number style name suggesting a single component datasheet even though it is catalogued as a schematic.