Basic electronics primer in English, a 2.66 MB PDF catalogued with schematics though it is a learning text rather than a circuit for a product. No device is named.

Spanish basic electronics guide, a general introduction rather than a schematic for any specific equipment. The name gives no device or board number.

Portuguese-language handout on basic electronics, filed under schematics although the name points to a study booklet rather than a circuit diagram of a specific device.

Spanish notes on basic electronics, a 591 KB PDF. The name mentions no device, board or brand, so it serves as study material on fundamentals such as electrical…

Spanish-language course chapter on basic electronics, provided as an 817 KB PDF and apparently the same content as the numbered topic 2 of the series.

Large Spanish course PDF, 15.6 MB, on basic electronics applied to mobile device repair.

Short electronics course in Spanish, a 1.26 MB PDF catalogued with schematics but evidently a teaching document rather than a circuit for a particular device.

Electronics-for-beginners guide in Spanish, a 5.77 MB PDF filed under schematics but by its title an educational text rather than a device diagram.