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

PDF datasheet covering the 2SB1651 PNP transistor, 40 KB. The _E suffix most likely denotes an English edition of the manufacturer document, though the file name does…

Compact 41.1 KB PDF covering the 1N5817 to 1N5819 range of 1 A Schottky barrier rectifiers, with the 1N5819 as the 40 V top grade.

A 293 KB PDF filed under schematics and titled 28F001, which belongs to the 28F flash memory family, usually a 1 Mbit boot block device.

Topic 8 of a Spanish mobile repair course, covering backup, root and recovery on smartphones, supplied as a 306 KB PDF. No specific device is named.

Portuguese introductory study material on digital electronics, the first part of a course series judging by the numbering in the name.

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

PDF of 187 KB carrying only the name Richtek, a maker of power management ICs such as PWM controllers, buck regulators and charger chips common on laptop and desktop…

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

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

Spanish electronics series El mundo de la electronica, issue number 23, provided as a 1.18 MB PDF.

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

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…

PDF table of Linear Technology marking codes, intended for identifying LT parts from the abbreviated top marks printed on small packages.

Labelled 1SS268, this 126 KB PDF appears to be a datasheet for a single component even though the index lists it as a schematic.

Spanish course section 3.4 on the microscope, a brief 114 KB PDF from the workshop equipment chapter of a mobile repair series. No microscope brand or model is stated.

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 for the 60 W NDFL amplifier published by ETI in 1983, combined with a regulated power supply, in a 6.74 MB PDF.

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

Component distribution diagram for the top side of the Xiaomi Mi 5 mainboard, translated from the Chinese file name, delivered as a 52.3 KB PDF that is probably one…

PDF reference listing Ricoh component marking codes, the short codes printed on small SMD packages.

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 for BD9422EFV, 1.10 MB, filed as a schematic. The code fits ROHM's BD-series IC numbering, with EFV denoting the package type; nothing else is in the name, so it is…

Full schematic in PDF for the MI2 mainboard at the P4 build, with 0917 most likely the drawing date.

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.

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

Small Portuguese PDF of 57.8 KB that, judging by its name, is a May schedule for live classes rather than a circuit diagram, despite being filed under schematics and…

Bottom copper layer of the R2 power amplifier PCB rated 1500 watts at 2 ohms, marked langsung print, Indonesian for direct print.

Bottom copper artwork for the Matrix i4 amplifier board rated 250 watts at 4 ohms, labelled langsung print, meaning ready for direct printing.

Audio Power Amplifier Design by Douglas Self, a 13.7 MB PDF book. The title is a well-known engineering reference on solid-state amplifier topologies, distortion…

Bottom-side component placement sheet for the LCFC NM-C421 board used in Lenovo laptops, a 112 KB PDF that complements the matching top-side drawing.

El mundo de la electronica number 16, a 1.41 MB Spanish PDF from a numbered electronics learning series.

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…

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…

PDF reference, around 129 KB, covering two power ICs identified by marking codes: Qq for the SY8386BRHC and 3a for the SY8388C3RHC.

Spanish training PDF on identifying the parts of a smartphone, describing the main components and modules found inside a typical handset.

PDF document for the GL503GE at revision 1.0, labelled in its name as a boardview, so it likely contains the component placement drawings of the board rather than a…

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