Full schematic diagram for the Xiaomi Mi 4S phone, a large 24.5 MB PDF that likely contains the complete set of circuit pages.

Another Xiaomi Mi 4C schematic document, labelled as part 1 and packed in a 17.8 MB PDF; it may be an alternate edition or the first section of a multi-part set, which…

Firmware dump for the LG W1752ST LCD monitor, supplied as a compact 56.4 KB rar. The small size suggests the contents of the monitor's scaler flash or configuration…

Panel identification data for the Chunghwa CLAA154WB05A 15.4-inch LCD, captured as a 256-byte binary from its configuration EEPROM. The name gives no laptop model.

Repaired BIOS image for the ECS H61H2-M2 desktop motherboard, version 2.0, provided as ZIP.

BIOS firmware package for the HP EliteBook 840 G1, supplied as a 9.15 MB ZIP. The name gives no board number, revision or version, so open the archive and verify which…

Fly SL500I schematic, provided as a 753 KB PDF. The diagrams let a repair technician follow the battery and charger circuitry, regulator outputs and the lines between…

RAR archive of 5.22 MB named for troubleshooting, with a team tag but no device model mentioned.

Small 317 KB RAR archive for the ASUS X550CL motherboard; the name only says board, so its exact contents, most likely a boardview or schematic set, are not specified.

Schematic diagram in PDF for the Dell Inspiron N4030 motherboard, code name Arsenal DJ1, discrete graphics version.

Apple iPad 4 logic board view in .pcb format, around 21 MB. The file maps the component placement and nets, so a repairer can click a net to see every part connected to…

Repair archive for the Gigabyte GA-MA770-DS3 AMD motherboard, 726 KB in RAR format. The name does not state the contents or board revision, so extract it to see whether…

Nokia 3250 schematic, version 1.0 according to the name, provided as a 754 KB PDF. This handset is known for its twisting keypad section, and the diagrams help follow…

Nokia 2220 handset schematic as a 737 KB PDF file. The name carries only the model number, with no revision or board identification.

Lenovo ThinkPad X200t tablet archive, a 782 KB RAR whose name identifies only the model.

Pegatron EIH31 schematic for the Acer Aspire 3750ZG, revision 2.1, delivered as a 2.08 MB-class document of 1.31 MB in PDF form.

RAR archive of 1.24 MB identified only by J120H, the code that corresponds to the Samsung Galaxy J1 2016 model SM-J120H.

Binary dump for the LG W1943SE monitor read from a W25X20 SPI flash, Winbond 2 Mbit memory whose 256 KB capacity matches the file size.

ENE KB9012QF embedded controller image for a Compal LA-9063P motherboard; no notebook model is given in the name.

OpenBoardView executable for Windows, 3.13 MB, the open-source viewer widely used in laptop and phone repair to open boardview formats such as .brd, .bdv, .bv, .fz and…

Board view utility in a 225 KB RAR; the generic name gives no version, author or supported formats, so its exact identity is unclear until unpacked.

Mainboard BIOS dump for the ASUS X550LC, part of the X550L series, with XX032H identifying the retail configuration it came from.

ASUS K55V BIOS dump of 8 MB, matching a 64 Mbit SPI flash chip. The name gives no mainboard revision or version, so check the revision printed on the PCB before relying…

RAR archive with BIOS firmware for a Sony VAIO EE25FX, presumably the VPCEE25FX, around 1.06 MB compressed.

Datasheet for the Microchip PIC16C77x family in a 2.61 MB PDF, with x marking the different members of the group.

Datasheet for the Microchip PIC16C505, a small 14-pin microcontroller from the baseline PIC range, provided as a 1.18 MB PDF.

Microchip PIC18F4550 datasheet in PDF form, about 6.74 MB. This 8-bit microcontroller is known for its built-in full-speed USB interface, so the document is useful when…

Datasheet for the Atmel ATxmega A1 series, the 100-pin members of the AVR XMEGA family.

Datasheet in PDF form for the ICL8069, a low-voltage bandgap voltage reference diode of about 1.2 V, historically made by Intersil.

Datasheet for the LM741, the classic general-purpose operational amplifier found in countless analog circuits, supplied as a 148 KB PDF.

Datasheet in PDF form, 246 KB, named only by the document number doc6272, so the file name gives no hint of the exact component.

Datasheet for the Atmel AT89S52, one of the most popular 8051-compatible microcontrollers, with 8 KB of ISP flash, 256 bytes of RAM and three 16-bit timers.

Datasheet for the Atmel AT89C1051U, a 20-pin 8051-compatible microcontroller with 1 KB of flash; the U version adds a UART and second timer compared with the basic…

Repair guide, RG, for the P452SJ laptop, delivered as a 714 KB PDF. Expect board layout images with marked components, voltage values at key test points and flowcharts…

PDF reference for the 74HC595, an 8-bit shift register with storage latches and three-state outputs, at 367 KB, filed under schematics.

Datasheet covering the 2N3055, the classic NPN power transistor in a TO-3 metal case, provided as a 171 KB PDF.

Datasheet in PDF form for the IRFP250 N-channel power MOSFET, a compact 92.6 KB file. Expect absolute maximum ratings, on-resistance, gate charge, safe operating area…

PDF for the BU4508DX, a small 48.8 KB document filed as a schematic but most likely the part datasheet.

A 115 KB PDF named after the 2SD1625 part number, catalogued as a schematic but in practice most likely the transistor's datasheet.

PDF covering the 3SK189, about 178 KB in size and listed in the schematic category, though the name points to a single component datasheet.