Schematic in PDF form for a Homage UPS, an inverter and backup power unit, about 823 KB in size.

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

Macro camera schematic for the Samsung SM-A21s, showing the 2MP macro module circuit, PDF, 3.82 MB.

Small 120 KB PDF that, judging by its Persian title, is a saved Wikipedia encyclopedia article about inverters rather than a board-level schematic.

Schematic covering the power and inverter circuits of the Sony KDL-52W5800 LCD television on the EX2L chassis, supplied as a 1.49 MB PDF.

Samsung SM-A20S schematic section dedicated to the LCD backlight, 4.62 MB PDF. It covers the backlight driver circuit, its boost coil, diode and capacitors, and the…

Service schematic in PDF form for the LG 43UF640T-DA television built on the LA5ZR chassis, 9.21 MB in size.

Spanish manual on unlocking, releasing and flashing mobile phones, a 3.27 MB PDF. No brand, model or tool is named in the title, so expect general procedures covering…

Lenovo B560 notebook schematic in PDF, 963 KB. The name gives no board number or revision, so open the document and read the board code on its title page, then compare…

PDF of 119 KB named 27C256B, filed as a schematic yet clearly a part number from the 27C CMOS EPROM line, here with a B revision letter.

A 761 KB PDF titled 28256a, filed as a schematic but most likely a fuller datasheet edition for a 28-series 256 Kbit parallel EEPROM, the a suffix suggesting a revision…

Backlight circuit of the Samsung SM-A11 schematic, delivered as a 4.33 MB PDF. It shows the backlight driver, its boost inductor, diode, output capacitors and the LED…

Samsung Galaxy A21s, model SM-A217F, full schematic in a 16.0 MB PDF. The diagram supports common repairs such as no charging, no power, or no display by showing how the…

Small 329 KB PDF titled OZ9906, with no further detail in the name. The OZ prefix is used by O2Micro, whose ICs often appear in LCD backlight and inverter circuits, so…

General schematic collection for LED and LCD inverter boards, 1.89 MB in PDF format. The name gives no brand, model or board number, so open it to see which inverter…

ASUS MW221 monitor schematic, delivered as a 5.73 MB RAR archive. No board number or revision is given in the name, so verify the hardware inside matches before taking…

Datasheet in PDF, about 91 KB, for the 93C66 serial EEPROM, the 4 Kbit member of the widely used 93-series Microwire family; the _3 suffix in the name likely marks a…

The 71.5 KB PDF called 25L4004 is catalogued as a schematic, yet its name follows the style of a serial memory part number, so it is most likely a chip datasheet.

PDF of 217 KB named for the 24C00, a very small I2C serial EEPROM of 128 bits (16 bytes).

Circuit diagrams in PDF form for the Lenovo D222B LCD monitor, compressed as RAR. Monitor repair usually involves the power board, LED backlight driver and scaler logic…

Weighing 332 KB, this PDF is titled 25C160, a name that resembles a serial memory part code, so treat it as a chip datasheet rather than a motherboard schematic.

Schematic service manual for the Haier HL22XLT2 and HL22XLTW2 22-inch-class LCD TVs, supplied as a 5.77 MB PDF.

Service schematic for the Sony KDL-60NX720 LCD television, a 60-inch model as the name indicates, provided as a 16.2 MB PDF with a Chinese-language file title.

PDF datasheet, 425 KB, for the 93C45A serial EEPROM within the 93-series three-wire Microwire family, filed in the schematic category.

A 148 KB PDF named 27lc512, filed under schematics but most likely a datasheet for a low-voltage 27-series EPROM, given how the part number is built.

Catalogued as a schematic, this 140 KB PDF carries the name 28F002, a part code from the 28F flash memory series, typically a 2 Mbit boot block type.

A 92.7 KB PDF catalogued as a schematic, named 28C257, a code from the 28C series of parallel EEPROM memories. The name gives no vendor, speed grade or package.

Listed as a schematic, this 166 KB PDF is named 28C65B, a variant code in the 28C parallel EEPROM family with a B revision suffix. No manufacturer or package is given.

Fairly large datasheet PDF of 705 KB named 25C16, catalogued as a schematic. The name follows the 25-series serial EEPROM convention, indicating a 16 Kbit SPI device…

Schematic for the Apple iPad Air 2 main logic board, a 10.6 MB PDF that originated from a Vietnamese repair site.

Reference for the Atmel AT45DB041B, a 4-megabit serial DataFlash memory as the name states, in a 233 KB PDF.

Flash memory datasheet PDF of 522 KB named 29DL16X, listed as a schematic. The name indicates a 29DL16x family part, a 16 Mbit dual-operation parallel flash series, with…

Only the number 29010 names this 727 KB PDF, listed as a schematic; the pattern most likely corresponds to a datasheet for a 1 Mbit 29-series parallel flash memory, with…

A 163 KB PDF filed as a schematic and named 28F010 followed by an underscore, likely a second edition or vendor version of the same device sheet.

Very small PDF of 14.4 KB named 25C080, indexed as a schematic. The code follows the common naming of 25-series SPI serial EEPROMs, where 080 typically indicates an 8…

PDF titled in Spanish as a software course, catalogued under schematics but almost certainly training material rather than a circuit diagram.

A 553 KB PDF called simply 29040, indexed under schematics, which by its number most likely covers a 4 Mbit 29-series parallel flash memory datasheet; the manufacturer…