Circuit diagram for the Sony MBX-266 mainboard, distributed as a 1.13 MB PDF. The name gives only the board number, without the VAIO model or revision, so compare the…

Circuit diagram for the Samsung NP-R50 notebook in PDF format, about 1.52 MB. The name shows only the model and no board number, so confirm the BA41 code printed on the…

Circuit diagram for the Samsung Galaxy Mega, model GT-I9200, supplied as a 5.99 MB PDF. The name gives no board revision.

Schematic for the Samsung E1085L, a basic feature phone, in an 852 KB PDF file. Only the model appears in the name, without a board revision.

Schematics for the Nokia N8 in a 6.23 MB PDF file. The name lists no hardware revision, so compare the board version on the PCB before trusting component numbering.

Schematic package for the Nokia 6600 smartphone, presented as a 3.25 MB PDF. The diagrams cover the circuitry that a repair technician needs for board-level work: power…

Schematic documentation for the Nokia N78, provided as a 679 KB PDF. The drawings help a repair technician trace the battery and charging lines, power management…

Nokia 5120 schematic diagrams in a 432 KB PDF. Only the model name is provided, with no board number or revision.

Schematic diagrams for the Nokia 1220 handset, packed in a 564 KB PDF; no revision is given in the name.

IBM ThinkPad A30 circuit schematic, supplied as a PDF of 986 KB. The name states the model only, with no board number, revision or configuration.

Circuit diagram in PDF form for a laptop identified only as U6V, about 950 KB in size. The file name states no motherboard number, revision or manufacturer, so the exact…

Schematic for the Toshiba Satellite A300 laptop, a 1.00 MB PDF whose name does not state the ODM, board number or revision.

Laptop schematics for the Toshiba Satellite A30, built on Compal's LA-2051 motherboard, provided as a 979 KB PDF.

Sony PCG-61611 laptop schematic based on the Quanta NE7 platform, apparently a duplicate or alternate copy given the suffix in the name.

Asus X450MJ repair guide, supplied as a 1.09 MB PDF. The name gives only the model, with no revision information.

Schematic PDF for the Acer TravelMate 5220, 5520, 7520 and 7520G notebooks, about 870 KB.

Wistron Huron schematic, revision SD, for the Acer Aspire 5910 laptop, saved as a 1.38 MB PDF.

Revision R1B schematic of the Quanta CT6 laptop motherboard, packaged as a 989 KB PDF. CT6 is a Quanta ODM project code, so the board may be found inside a branded…

Schematic for the Quanta AT8 notebook mainboard, revision R1A, in a 1.03 MB PDF. Quanta, a large Taiwanese ODM, uses AT-series and similar codes for boards it builds for…

Circuit diagram of the Quanta TT9 motherboard at revision R1A, a compact 820 KB PDF and the third upload of this drawing.

Schematic covering the ASUS A42J and K42JR notebooks, a 2.30 MB PDF. Both model names appear in the file name, implying a shared mainboard design, but no board number or…

Service manual in PDF form for the Samsung GT-C3510 mobile phone, about 4.71 MB. Samsung service manuals of this era usually combine disassembly steps, exploded views…

A 3.50 MB PDF datasheet from Microchip describing the PIC16C717, PIC16C770 and PIC16C771 microcontrollers in one shared document.

Programming specification from Microchip describing how to program the flash and data EEPROM memory of PIC16F87X microcontrollers, supplied as a 201 KB PDF.

A 1.78 MB PDF datasheet for the tiny2313, consistent with the Atmel AVR ATtiny2313 microcontroller.

Combined ST datasheet for the L6201, L6202 and L6203 family of DMOS full-bridge motor drivers, which differ mainly in package and current rating.

Schematic file with an uninformative messaging-app style name and no extension, 2.15 MB, linked to Quanta board number DA0X8MMB6D0.

PDF schematic for the HP nx6320 laptop, around 1 MB in size. The name gives no motherboard number or revision, so compare the board identifier printed on the PCB before…

Quanta UT8A motherboard schematic in PDF form, about 1.14 MB. The name gives the Quanta project code UT8A but not the laptop brand or a board revision.

Schematic diagram for the Samsung NP-R423 laptop, supplied as a PDF of about 1.1 MB. Apart from the model, the name carries no board code name or revision, so confirm…

Reference PDF for the HCF4050B, a non-inverting hex buffer from the CMOS 4000 family, as the file name itself states.

PDF reference, 218 KB, for the LA7286, an IC from the LA series, a prefix associated with Sanyo linear integrated circuits.

PDF titled only with the part number D304X, about 489 KB, filed as a schematic. The name gives no further detail on device type or manufacturer, so the contents are most…

Although filed as a schematic, this 37.9 KB PDF is named after 2SD2460 with an extra E tag the name does not explain.

This 170 KB PDF carries the part number 2SJ502 and is indexed under schematics. In JIS naming, 2SJ marks a P-channel FET, so the document is expected to be the datasheet…

Listed under schematics, this 94.5 KB PDF carries only the designation 2SJ276. Under the JIS system the 2SJ prefix belongs to P-channel FETs, so the file is almost…

The 90.8 KB PDF is named only 2SJ273, a part number in the JIS series used for P-channel FETs.

Filed as a schematic, this 86.2 KB PDF is named after the 2SJ229, a Japanese JIS-registered part number where the 2SJ prefix denotes a P-channel field-effect transistor…

Huawei Y500 service package compressed as a 330 KB ZIP, with no indication in the name of what is inside.

Reference sheet for the 2SC5784 transistor, a 178 KB PDF listed under schematics. Under Japanese JIS numbering a 2SC code denotes an NPN bipolar transistor intended…