Schematics for the Samsung SM-A500H, a 4.85 MB PDF with no board revision stated in the name.

Component data for the 2SD2130 NPN transistor, a PDF of about 209 KB. The name carries no board or device information; it is a part sheet following the Japanese 2SD…

Part reference for the 2SK242, saved as a 170 KB PDF in the schematic section. Japanese JIS designations beginning with 2SK belong to N-channel FETs, so the file is most…

Bearing only the number 2SC4293, this 92.7 KB PDF is catalogued under schematics while most likely holding the datasheet for that transistor.

Guide to the charging process of the Samsung Galaxy A10, provided as a 1.05 MB PDF. It likely illustrates the path from the USB connector through the charging IC and…

Troubleshooting guide in PDF form for the LG G4, model H815, packed in a 14.2 MB RAR. LG service troubleshooting documents usually walk through fault symptoms such as no…

RAR archive of 417 KB labelled as an hk9 conversion, most likely a guide for converting a board with a discrete graphics section to integrated (UMA) operation, although…

Combined troubleshooting guide in PDF covering three Samsung Galaxy Note models: SM-N910C, SM-N900H and SM-N900CQ.

Datasheet PDF for the 2SD1192 transistor, 133 KB, listed in the schematic section of the index. Its name gives nothing beyond the part number.

Cover page of the Samsung SM-A325M service manual, a small 162 KB PDF. This section usually carries only the model name, manual title, revision and copyright notice…

Portuguese-language PDF guide whose title translates to How to Test Electronic Components, 620 KB in size.

PowerPoint file in Russian whose name translates as update instructions, 17.9 MB in .pptx format.

Spanish-language guide to jumper points and lines on iPhone boards, a large 18.8 MB PDF; the name does not specify which iPhone models are covered.

PDF document of 885 KB whose Persian file name translates as oscilloscope, which suggests a guide or tutorial on using an oscilloscope rather than a schematic for a…

Service documentation for the LG K130F phone, packed into an 18.5 MB RAR. LG SVC manuals normally include disassembly steps, troubleshooting guides, block and circuit…

Troubleshooting guide in PDF format, 1.65 MB, for model S7262, which corresponds to a Samsung Galaxy Star Plus dual-SIM handset, though no brand is given in the name.

Troubleshooting archive for the Samsung I9500, the Galaxy S4, compressed as a RAR of about 16.4 MB.

Exploded view drawing for the Samsung SM-G780G, the Galaxy S20 FE, from its service documentation, as a 2.23 MB PDF.

Reference archive on diagnosing and locating faults behind iPhone restart problems, such as boot loops and random reboots.

Short PDF repair guide for the Samsung B310E feature phone, focused on display faults according to its name.

Troubleshooting manual in PDF for the Samsung Galaxy J7 Prime, model SM-G610F. Samsung troubleshooting guides lay out fault flowcharts for power, charging, display…

Repair guide archive covering the LCD backlight circuit of the Xiaomi Redmi Note 8 Pro, spelled Redmo in the name.

The 2SC4861 datasheet appears to be what this 117 KB PDF contains, although it is filed in the schematic category. Only the part number is stated.

Learn Arduino, a Spanish guide in a 5.69 MB PDF focused on the Arduino microcontroller platform rather than repair of a specific device.

Troubleshooting guide in PDF for the Samsung SM-A105FN, the Galaxy A10 model code, contained in a 1.29 MB RAR archive.

Short Spanish PDF course on the oscilloscope, 375 KB, with no device or model associated. It is study material, not a circuit diagram.

The 2SK2545 is the subject of this 415 KB PDF, catalogued as a schematic but by its name a discrete transistor document.

Spanish PDF numbered topic 5 on disassembling mobile terminals, roughly 954 KB, part of a phone repair training series. It does not name a specific handset.

Spanish-language guide titled Principales fallas en celulares, the main faults in mobile phones, a 1.34 MB PDF not tied to a specific model or brand.

Troubleshooting guide in PDF for the Samsung SM-A115 smartphone, archived as a 4.14 MB RAR.

Troubleshooting guide in PDF for the Samsung I9060 handset, with Tshoo being Samsung's usual short form for troubleshooting.

Schematic diagrams for the Samsung SM-A510FD, the dual-SIM variant code, in a 1.54 MB PDF.

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

Intel 860 chipset documentation at revision 1.2 in a 6.68 MB RAR archive. The 860 platform supported dual Xeon processors with RDRAM, so the material is mainly relevant…

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.

Disassembly guide for the Samsung SM-E500F, supplied as a 598 KB PDF. Although filed under schematics, the name points to a mechanical service document describing how to…

Zip archive of about 3.60 MB whose Russian title translates to starting the IMVP8 VRM on the GX502LXS, part one, prepared by DeaZz.

Vivo Y83 phone schematic material in a 631 KB RAR archive containing a PDF, named after a fault where the handset was heavily dropped and then stopped sending messages.

The 2SD2201 is the subject of this 153 KB PDF, indexed as a schematic though the content is presumably a datasheet.

Portuguese PDF, 88.3 KB, on using a bench power supply (fonte de bancada), apparently converted from another document format. No device or model is referenced.