Reference sheet in PDF for the IRFP32N50K MOSFET, which the name rates at 500 V and 32 A.

Combined data document for the BD135, BD137 and BD139 transistors, filed under schematics, 51.0 KB in PDF form.

Component-style code 3LN02N is all the name of this 28.0 KB PDF provides; it is catalogued as a schematic but mentions no device, brand or motherboard number.

Component document in PDF for the 2SK2555, filed under schematics although the part number points to a discrete semiconductor rather than a board.

Here is a 42.1 KB PDF on the 2SC3707 transistor, listed in the schematic category. The trailing E after the part number is not explained in the name and should be read…

Small 37.0 KB PDF for the 2SB1427 transistor; the name gives only the part number, with no maker or revision.

A 64.4 KB PDF for the 2SA1906, with a 1-2 suffix in the name that may indicate the first of two pages or parts; the exact meaning is not stated.

Datasheet-style PDF of 101 KB for the 2SA1731, indexed under schematics but named only by part number with no device or board information.

PDF of 47.7 KB named for the part 2PB709A, issue 4 judging by the suffix. The name carries no device model or board number, and the prefix matches a transistor-style…

Component document in PDF form, 47 KB, named 2PA1774 with a suffix 2 that likely denotes the sheet issue.

Here is a 570 KB PDF catalogued as a schematic whose name is simply 28010, without any brand or board identifier.

Only the code 35sgq060 is given for this 47.7 KB PDF, which is categorised as a schematic.

A 41.4 KB PDF named 35sgq045 and filed under schematics, though the name points to a component part code rather than a motherboard.

Bearing only the code 35cgq045, this 49 KB PDF sits among schematics but looks like a reference for a single component rather than a board.

A small PDF filed as a schematic, named only 30FQ, which reads like a component part number rather than a board or laptop model.

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.

A 312 KB PDF covering the 24LC21 serial EEPROM, with the -1 suffix probably marking a separate edition or part one of the documentation.

Combined PDF covering the 24LC04B and 24LC08B serial EEPROMs, 4 Kbit and 8 Kbit devices sharing the same I2C interface and pinout style.

Catalogued as a schematic, this 314 KB PDF carries only the code 22GQ100 in its name, with no laptop brand, board number or revision stated.

Acer Aspire V5-551G motherboard schematic for board DA0ZRPMB6C0, delivered as a 1.03 MB PDF. The DA0...MB...

Circuit diagram in PDF form for a mainboard coded Z84J, with no manufacturer or model given in the file name.

PDF schematic for the Sony MBX-163 laptop motherboard, with MS60 in the name, probably the ODM project code tied to this board; the file is 1.04 MB.

PDF schematic for the Lenovo ThinkPad X200 laptop, about 1.23 MB. The name gives no motherboard number or revision, so compare the board code on the opening pages with…

Schematic for the Lenovo E255 notebook as a 928 KB PDF. The file name names only the model, so the ODM board number and revision have to be read from the drawings…

Motherboard schematic for the IBM ThinkPad T42, a 1.08 MB PDF. The file name lists no board number, revision or GPU option, so verify the version against the labels on…

Schematic in PDF form for an H61MXL-K desktop motherboard, compressed into a RAR archive of about 1.10 MB.

Compact zip archive of 1.10 MB holding a schematic, named only with the model code x6812 and listed under Tecno and Infinix.

PDF schematic for LCFC board NM-F861, used in a Lenovo laptop. The NM-xxxx numbering belongs to LCFC, the Lenovo and Compal joint venture responsible for many Lenovo…

Duplicate of the Spanish lesson on CDMA and FSK, numbered 5 and 474 KB in PDF format. It covers code division multiple access and frequency shift keying, two key…

Topic 4 of a Spanish mobile repair course, explaining how to identify the parts of a smartphone, as a 404 KB PDF identical in size to the unnumbered copy.

Portuguese fault-analysis document for the J700, which by naming convention is most likely a Samsung Galaxy J7 handset, although no brand is stated.

Schematic archive for the J610F, most likely the Samsung Galaxy J6+ model code, though the brand is not stated in the name.

Schematic PDF for the HP EliteBook 840 G3, board 6050A2892401, revision MB-A01, about 1.25 MB.

Samsung SM-A05 charging and data schematic, a 6.28 MB PDF. It covers the USB connector, the charger and power management parts, VBUS protection and the data lines to the…

Samsung SM-A10 charging and data schematic, a 2.25 MB PDF. It covers the USB port, VBUS input protection, the charger circuit and the data lines to the processor.

Circuit diagram in PDF form for motherboard DASW6CMB6A0, revision A, which follows Quanta numbering: the DA prefix, a project code and the board revision.

ASUS desktop motherboard schematic for the P5KPL-AM, with an IN suffix that likely marks a regional variant.

Lenovo IQ3X0IL document for LCFC board NM-B511 revision 1.0, named as a boardview but stored as a small PDF, so it is probably a printed component placement view rather…

Schematic in PDF form for a Sony laptop motherboard with the Quanta code DA0HK9MB6D0, revision 1A.

Schematic PDF for the Dell Latitude 5520, SOUTHPEAK15 project on Tiger Lake (TGL), board 19819-1, which follows the Wistron board-numbering scheme.