Reference sheet for the 2SA1300 transistor, supplied as a 207 KB PDF and filed under schematics in this index.

The 2SA1869 is covered by this 174 KB PDF, a PNP bipolar transistor in the Japanese JIS 2SA series.

Small PDF listed as a schematic, though the name 2SA777 with suffix E reads like a discrete semiconductor part number in the Japanese 2SA style rather than a board…

Only the part number 1SS374 is given in the name of this 68.5 KB PDF, so treat it as a component specification rather than a board schematic.

PDF datasheet of about 42 KB for the 1N4531, a small signal switching diode. The name carries no other details, so the vendor and document revision can only be read from…

Datasheet in PDF for the 93C85A, a member of the 93-series Microwire serial EEPROM family, filed here under schematics.

Catalogued as a schematic, this 49.4 KB PDF carries only the code 60LQ045 in its name, with no brand, device model or board revision.

Named 35scgq045, this 70.6 KB PDF is grouped with schematics, but the name suggests a discrete component code and carries no device, brand or revision information.

Reference PDF of 76.4 KB, indexed as a schematic but named only after the part code 30CLJQ150.

PDF schematic for the K72JK motherboard, an ASUS-style model code, though the name gives no revision.

Second chapter of a Spanish course introducing cellular phones and their technology, saved as a 503 KB PDF.

SIM card reader schematic for the Samsung SM-A21s, PDF, 3.81 MB. The page covers the SIM socket circuit, usually its supply, clock, reset and data lines plus protection…

PDF schematic for board 17870-1, a number that follows the Wistron numbering style; the file name gives no laptop model, and the (3) suffix just marks a duplicate copy.

Gigabyte F2A88XM-D3H revision 3.01 boardview exported as a PDF. Unlike a native boardview it is a static drawing of component placement, readable in any PDF viewer and…

PDF schematic of 3.91 MB for a mainboard labelled NB3029, apparently the WSCH MB variant at version V4 A, as the name states.

MSI MS-V328 revision 3.1 circuit schematic in PDF, 709 KB, for an early version of this MSI graphics card board.

Schematic in PDF format for a GALAX GeForce GTX 1080 Ti, identified by the codes P25Z and PG611.

PDF schematic for the Gigabyte B460M DS3H AC motherboard, revision 1.1, packed in a 1.30 MB RAR archive.

Schematic for the Huaqin NB2672 project, supplied as a 3.55 MB PDF. Huaqin is a Chinese ODM that designs notebooks for several brands, and the name gives no retail…

PDF schematic for the Dell G5 5590 and G7 7590 laptops. The name gives no board number, ODM or revision, so read the title block and compare it with the PCB silkscreen…

Schematic in PDF format for the ASUS U41JF notebook, packed as a 419 KB rar. The RG token in the name is not explained and may be a revision or variant.

Schematic for Quanta motherboard DA0LZ7MB8E0, a 1.14 MB PDF, with no laptop brand or model listed in the name.

Quanta CH1 project schematic, revision 2A, provided as a 970 KB PDF. No laptop brand or model appears in the name, only the Quanta code and revision, so verify the board…

Schematic archive in RAR format, about 3.8 MB, labelled only with the code GM5MPHY and marked as containing a PDF.

PDF schematic for the Gigabyte Z390 Gaming SLI, revision 1.01, archived as RAR. The diagrams show power delivery, chipset and CPU connections, sequencing signals and…

PDF schematic for the Biostar IH11M-MHS motherboard, version 6.0, supplied as a RAR archive of about 1.8 MB.

PDF schematic of about 1.32 MB for the Philco PH29E63D television, identified only by its model code.

Circuit diagram for a milliohm meter, provided as a 436 KB PDF. It is not tied to any laptop or motherboard; it describes a measurement instrument useful on the bench…

PDF schematic for the Biostar N61PB-M2S motherboard version 6.4, compressed into an 815 KB RAR and indexed under ECS.

Schematic for the Lenovo Y510 notebook supplied as a 1.26 MB PDF. The name carries no motherboard number or revision, so read the cover page or title block to identify…

PDF schematic for the Lenovo ThinkPad X240, board number NM-A091, inside a RAR archive. NM-prefixed numbers follow the LCFC numbering used for Lenovo boards.

Schematic for the Compal motherboard LA-C701P, supplied as a 1.90 MB PDF whose name gives only the board number with no model, brand or revision.

Revision 1.02 schematic for the Gigabyte GA-H81M-D2V motherboard, a PDF compressed into a 698 KB RAR.

Desktop motherboard schematic for model P23G, filed under ESC (most likely ECS, Elitegroup), in an 854 KB PDF.

Apple logic board schematic for 820-3332 revision A, provided as a 2.39 MB PDF. Match the 820 number silkscreened on your board along with its revision before trusting…

Schematic in PDF form, packed in a 518 KB zip, for laptop motherboard 71R-C14AS4-T810. A circuit diagram like this is used to follow power rails from the charger input…

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

PDF for the BD9483F, 938 KB, catalogued as a schematic. The name carries only the part number, which follows ROHM BD-series numbering with an F package suffix; the…

Schematic for the Compal LA-9865P laptop board at revision 2.0, contained in a 1.46 MB RAR archive.

Gigabyte GA-Z68P-DS3 motherboard schematic in PDF format for board revision 1.0. Repair work it supports includes measuring standby and main power rails, checking the…