LG service schematic for the 21FG3RG-T9 CRT television, based on the CP-079A chassis, provided as a 1.58 MB PDF.

A PDF collection of fun basic electronic projects, filed under schematics and 406 KB in size.

PDF document whose title describes disabling the protection circuit of an inverter. The name gives no brand, model or board number, so the exact device it applies to is…

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.

Schematic in PDF form, 2.03 MB, for a subwoofer identified in the name as e150p. No manufacturer or board revision is stated, so confirm the model label on the enclosure…

Excel spreadsheet of design data, 28.4 KB, whose name carries the reference 8223L, a version string 2.2.17 and the date 20111218, followed by the suffix VNHE.

Short PDF reference listing IC equivalents, meaning substitute part numbers that can replace one another in a repair.

PDF document of 530 KB whose name refers to lowering the current of a circuit; the title is truncated, so the exact subject is unclear.

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

English datasheet for the HN1B01FU semiconductor part, dated 2014-03-01 according to the name, in a 361 KB PDF.

PowerPoint presentation of 272 KB explaining how to upgrade device software. The name does not state which product or brand it applies to, so check the slides for the…