Spanish PDF of tips for repairing without a schematic, going by its title. No device or brand is named, so it is general technique: likely voltage and diode-mode…

Guide on the multimeter, apparently translated from Portuguese to Spanish judging by the name, 1.48 MB PDF.

Mirrored PCB artwork for a Zener amplifier board, a 237 KB PDF; espejo is Spanish for mirror.

Fourth chapter of a Spanish cellular-phone course, dealing with cloning or unlocking, saved as an 863 KB PDF.

ASUS X453SA repair guide in PDF format, roughly 1.1 MB, filed with schematics. Guides of this kind usually describe the power-on sequence, main power rails, key test…

Portuguese training course on motherboard repair, an 8.30 MB PDF. It is study material rather than a schematic of a particular board.

Lesson nine of a Spanish phone-repair course on network unlocking and IMEI-based release, saved as a 619 KB PDF.

Spanish-language colour reference on LEDs for TV backlights, edition dated June 2019, 2.01 MB PDF, part 06 of a series.

Training course material on basic electronics repair, 7.26 MB PDF, catalogued with schematics although it is an educational guide rather than a board diagram.

Mirrored version of the Apex AX 20 copper-side layout, a small 62.3 KB PDF. The reversed image is meant for toner-transfer or photoresist methods, where the pattern must…

Spanish tutorial PDF on how to read a schematic, credited to ABCtecnologyspro. It is a training document rather than a diagram for a specific device, and it likely…

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.

Copper pattern of the Apex Class A shunt board, viewed through the PCB from the component side, according to the Serbo-Croatian title.

Thirteenth issue of El mundo de la electronica, a Spanish-language electronics course delivered as a 1.47 MB PDF.

Spanish-language PDF offering ten tips for a technician who is developing their skills, about 152 KB.

Spanish repair training document titled learning to repair, a 4.09 MB PDF and a different file from the similarly named from-scratch course.

Washing machine repair guide attributed to P. Mevada, a 401 KB PDF with no brand or model named.

PDF guide on inverter protection, 579 KB, filed with the schematics; the name gives no brand, model or board number.

Service guide in PDF format, 114 KB, on troubleshooting power supply circuits, filed in the index as a schematic.

Short PDF document of 124 KB titled DMI process, catalogued as a schematic but more likely a procedure guide. No laptop brand or model is named.

PCB document named VDBL Multi, a 4.16 MB PDF that likely holds layouts for several board variants of a VDBL style amplifier design, as the multi tag suggests.

Schematic, per the sch suffix, for the Audio Pro Ace Bass B2-70 subwoofer. The 546 KB PDF covers the built-in amplifier, likely including the ACE-Bass circuitry, Audio…

Diode-mode or resistance-to-ground reference for the iPhone 7 Plus, covering connector J4504, which the Chinese title describes as the volume key and flash socket.