The fourth installment of P. Mevada's washing machine repair notes, a 399 KB PDF with no manufacturer or model given in the name.

Bottom-side PDF sheet for motherboard 14291-1, numbered in the Wistron style used for many Dell notebook boards.

Schematic PDF for PMP1012, a design marked as a TI-style power management reference design in the name.

Board view drawing in PDF format for the Gigabyte GA-RP65Y9, revision 1.0, 1.92 MB, and likely the same content as other copies sharing this name.

Scanned photo reference for the Apple logic board 820-01814, saved as a 3.17 MB PDF. Apple marks its logic boards with 820- part numbers, and these scans show the real…

A 1.06 MB RAR archive containing the Compal LA-5511P schematic, revision R1.0. The LA-number is Compal's board project code, used across the notebooks it manufactures…

Schematic for the Xiaomi Mi 4 LTE smartphone, a 1.32 MB PDF. It documents the circuit connections used when diagnosing power, charging, audio, display or radio problems…

PDF titled BOT, catalogued as a schematic and 232 KB in size; the name gives no model, brand or board number.

Schematics with document number sr28c51351, revision B, marked NA VZ PROD with code 0302, in a 1.01 MB PDF; NA and VZ suggest a North American Verizon production build…

Spanish PDF titled Microelectrónica, 4.14 MB, with no device, brand or board named. It is likely training or course material covering microelectronics topics such as…

Bottom-side placement drawing in PDF for the Xiaomi M1s board at the P3 build stage. It shows where components and their designators sit on the underside, so a part…

PCB layout document in PDF for the Apple iPhone 5, showing component placement on the logic board.

PDF covering the bottom side of the board labelled Cyperss Point, likely a misspelling of Cypress Point. It pairs with the top-side file in this collection.

Bottom-side silkscreen layout for board NMB911 revision R10, in PDF form at about 163 KB.

Mirrored bottom-layer placement sheet in PDF for the Xiaomi M1 board, labelled as an updated version.

Circuit schematic in PDF for the Xiaomi M1s phone, with the Chinese part of the name meaning Xiaomi schematic diagram.

Bottom-side PDF for Wistron-numbered board 15250-1, roughly 263 KB, the counterpart of the top-side sheet.

Bottom-layer placement drawing in PDF for the MI2 CDMA board, P2 stage, marked as an updated revision of the layout sheet.

Topic 6 of a Spanish smartphone repair course, focused on diagnosing and solving hardware faults, in a 308 KB PDF. No model or board number is stated.

Bottom-side silkscreen drawing for Lenovo board NM-B911, revision 1.0 (R10), supplied as a 163 KB PDF.

English-language PDF about DC-to-DC regulators, 3.13 MB, filed with schematics. The name carries a numeric code but no specific IC or board, so it reads as a general…

Bottom-side placement drawing for the Compal LA-F391P board, a 106 KB PDF that pairs with the top-side view and the full BRMLK12U schematic.

Schematic in PDF form for a BCi 450 W amplifier, marked 2R and dated 2013 according to the file name.

Bottom-side placement view for the Compal LA-F541P board, a 445 KB PDF that complements the matching top-side file.

Compal schematic for Lenovo V330 and V530 laptops on the EX3 platform, board LA-F481P, design dlme1_mb at revision 02, with LA-D562P also referenced, in a 4.69 MB PDF.

Short 170 KB PDF titled ME Region, indexed under schematics, without any board or brand named.

Spanish PDF on solving power-on problems, a short 183 KB guide with no device, brand or board number given.

Technical PDF on boosting power supplies, 2.24 MB, filed among schematics. The name points to step-up (boost) converter topology rather than a particular TV or board…

Bottom-side companion PDF for the Lenovo NM-B311 board, LCFC numbering, at roughly 501 KB, showing component placement on the underside of the PCB.

Spanish-language PDF titled semiconductores, 2.49 MB, with no device or brand stated in the name.

Schematic in PDF form for the MIP390D, a board associated with Megmeet, an electronics maker known for power supply and display power modules.

Schematic in PDF form labelled VX9G5M, with the added word SIMILAR suggesting it is a close or compatible design rather than an exact match for that board.

Bottom-side placement drawing for the Compal LA-G714P mainboard, a 290 KB PDF. Rather than circuit pages, it shows component outlines and reference designators on the…

PDF of the bottom side for LCFC board NM-A181 at revision 1.0, a Lenovo design whose name marks it as the BOT layer.

Mirrored bottom-layer placement sheet in PDF for the MI2 board at the P4 build. Mirroring flips the view so the underside appears as it looks when the board is turned…

Silkscreen print of the top side of board NMB911, revision R10, supplied as a small PDF.

Circuit schematic in PDF for the original Xiaomi M1 phone, with the Chinese title meaning Xiaomi schematic diagram.

Here is a 570 KB PDF catalogued as a schematic whose name is simply 28010, without any brand or board identifier.

NXP user manual UM10403 schematic of a 90 W reference adapter design using the TEA1752T and TEA1791T.

Component placement map for the bottom side of the Xiaomi Mi 5 mainboard; the Chinese name translates to Xiaomi 5 bottom component distribution diagram.