Schematic diagram and service manual for the Lenovo A536 phone, with the brand misspelled as Lonovo in the original name, supplied as a 6.73 MB RAR archive.

A 948 KB PDF guide on disabling the protection circuit of LCD backlight inverters, part three of a series, covering boards built around the OZ9966SN inverter controller.

Titled in lowercase as 2sd1414, this 62.9 KB PDF is catalogued as a schematic, though a lone part number indicates a transistor datasheet.

Generic 2N7000 datasheet, 94.6 KB PDF, stored in the schematic section with no vendor, suffix or revision in its name.

Part 2SK2399 is the subject of this 423 KB PDF, catalogued as a schematic but in all likelihood a datasheet, since under Japanese JIS numbering 2SK stands for an…

PDF sheet for the 2SK1381 transistor, an N-channel FET in the Japanese 2SK series, about 443 KB in size, which suggests full characteristic graphs and mechanical data.

The 466 KB PDF here is titled only 2SC4841, a Japanese JIS transistor code where 2SC stands for NPN.

Component reference for the 2SA1331 transistor, supplied as a 129 KB PDF. Under JIS conventions the 2SA prefix marks a PNP transistor designed for high-frequency…

Datasheet PDF of 248 KB for the 2SC3138, an NPN bipolar transistor going by its Japanese JIS 2SC prefix.

Quanta ZB3 schematic shared by the Acer Aspire 3660 and TravelMate 2460, revision 1A, in a 1.25 MB PDF.

Component documentation for the 2SC4220, delivered as a 106 KB PDF and filed under schematics.

Documentation for the 2SC3135 transistor, delivered as a 127 KB PDF in the schematics category.

The 2SK1429 is covered by this compact 99.1 KB PDF, entered in the schematic category although a lone part number usually signals a datasheet.

Datasheet PDF, 149 KB, for the 2SA1710 transistor; the file name gives no further model or board details.

Schematic PDF for the Dell Latitude E6220 with board number 6050A2428801, a long-number format used by Inventec and Foxconn for their mainboards.

Document on building a transmission line loudspeaker enclosure, a 498 KB PDF filed among schematics.

For the 2SC4006 there is this 79.6 KB PDF, filed as a schematic though a bare JIS code like this normally names a datasheet.

Lenovo B490 laptop schematic, 1.95 MB PDF. The name contains a long string beginning with LA that appears to be a Compal-style board code fused with other digits, but it…

Quanta-made schematic for the Lenovo IdeaPad Z380, project LZ1 with the LZ1A board, revision R1B, dated or versioned 0901 in the name.

Schematic in PDF form for MSI graphics board MS-V371, revision 60, with a long numeric reference in the name that appears to be a document or drawing code.

Sony PDF of LCD TV chassis information, 1.45 MB, with a long numeric code in the name that likely includes a date and a Sony document part number, though neither is…

Schematic of the Quanta NE7 mainboard at revision 3A, 2.34 MB PDF, larger than the other NE7 3A files and possibly a higher resolution or longer export.

Schematic for the Toshiba Satellite L30, built on the Quanta BL1 design, offered as a decrypted PDF.

Schematic for the Pegatron BK5EA laptop motherboard, revision 1.1, provided as a PDF in a 1.99 MB RAR archive.

Lenovo B490 laptop schematic in PDF, about 1.95 MB; the file name includes a long numeric string beginning with la that may encode a board or part reference but cannot…

Spanish manual on unlocking, releasing and flashing mobile phones, a 3.27 MB PDF. No brand, model or tool is named in the title, so expect general procedures covering…

Schematic PDF, archived as RAR, for board CIH77S version 1.0 used in B340 and B540 models, as stated in the name.

MSI MS-7423 schematic packaged as a 5.56 MB RAR archive. Besides the board code, the file name states no revision, chipset or product name.

Schematic for the Toshiba Satellite A505-S6025, built on a Quanta motherboard with the TW3A project code.

Samsung Galaxy Z Fold 4, model SM-F936B, full schematic in PDF form at 27.4 MB. Foldables have several boards and long flex links across the hinge, so a complete diagram…