Schematic diagrams for the Toshiba Satellite 1100, an older notebook whose motherboard was designed by Compal under board number LA-1421.

Basic electronics primer in English, a 2.66 MB PDF catalogued with schematics though it is a learning text rather than a circuit for a product. No device is named.

Block diagram for the Xiaomi Redmi Note 4, a 3.79 MB PDF giving an overview of the main subsystems and how they link to the processor and power management.

Tiny 20.9 KB RAR archive with the schematic for Compal LS-5241P, revision 1.0. Compal assigns LS- numbers to secondary circuit boards in its notebooks, such as switch…

Compal LA-A481P circuit diagrams at revision R0.3, archived as a 1.09 MB RAR file. An R0.2 version of this board is also catalogued, so check which revision is…

Circuit diagrams for the Compal LA-1841 motherboard, revision R0.1, compressed as a 957 KB RAR file.

Compal LA-1421 schematic set, revision R1A, in a compact 672 KB RAR archive. LA- numbers are the internal board codes of Compal, a notebook ODM whose mainboards were…

Service manual for the Haier DX-LTDVD19-09, an LCD TV model whose name suggests a built-in DVD player, in a 2.02 MB PDF.

Fifth numbered sheet from the Sony K700 schematic set, a 424 KB PDF. Its exact section is not given in the name, so check the page titles inside and match them with…

Compal schematic labelled LA-2791, provided as a 1.30 MB PDF. The name gives no revision and no notebook model.

Updated top-layer placement drawing in PDF for the MI2 CDMA board at the P2 stage. At only about 15 KB it is a compact vector sheet of part outlines and reference…

PDF schematic for the Dell Vostro 1500 laptop, about 909 KB. The name gives no board number, ODM or revision, so check the title block inside the document to see which…

Schematic in PDF form for the Toshiba Satellite L655 mainboard 6050A2332401, marked MB A03 with RevAX1 in the name.

Schematic for the Dell Latitude E5420 in PDF format, naming the Krug project with a 14-inch UMA build, meaning integrated graphics without a discrete GPU.

Circuit diagram for the Lenovo G560 notebook on Compal board LA-5752P, a 1.25 MB PDF that differs in size from other copies and may be a different revision or export.

ASUS schematic covering the K40IJ and K50IJ notebooks, which share one mainboard design, at revision 2.0.

Schematic for the Samsung Galaxy Core Prime SM-G360F, provided as a 3.84 MB PDF with no board revision in the name.

Schematic for the Samsung GT-S5360, known as the Galaxy Y, packaged as a 3.03 MB PDF. No board revision is given in the name.

Samsung Galaxy Core Plus schematic for the SM-G350, a 2.48 MB PDF. No suffix or board revision is stated in the name.

Circuit schematic in PDF form covering the Nokia 6233 and its close sibling the 6234, which share one main board design.

Service schematics for the Nokia N93, provided as a 1.99 MB PDF file. Only the model is identified in the name, without a board number or revision.

Nokia 1255 schematics in a compact 413 KB PDF. The name lists only the model, with no board code or version, so treat it as a general service reference for this handset.

Samsung NP-E352 laptop schematic in PDF form, 2.86 MB in size. The file name offers no motherboard code or revision, so match the board number on the PCB against the…

Foxconn-designed Lenovo laptop schematic identified by the project name S04, with no model number or revision stated.

PDF schematic for the Dell Vostro 1500, file size about 909 KB. Several copies with different sizes exist for this model, which suggests different board revisions or…

Circuit schematic for the Dell Vostro 1400 laptop, a PDF of around 1.24 MB. The version mentioned in the name is left blank, so the exact board revision is only visible…

Alternate schematic for the Dell Studio 1535, a PDF of about 1.29 MB that differs in size from the other copy, possibly a different board revision.

Schematic for the Dell Inspiron 1440 notebook in PDF form, 1.64 MB. The file name provides only the model, without board number, ODM project name or revision, so verify…

Quanta FX2 notebook schematic, revision RD, with the name dated 2006-05-05, making it an older design from that period.

Cover section of the Samsung service documentation for the GT-S7580 and GT-S7582 Galaxy phones, a 126 KB PDF numbered as part 1 of the set.

Samsung SM-E700H service schematic, packed in a 12.4 MB 7z archive. The SM-E700H is a Galaxy E7 model variant, and the archive should contain the circuit diagrams needed…

PDF covering the HEF4094B, an 8-stage shift-and-store bus register from the 4000-series CMOS logic family, listed as a schematic and 199 KB in size.

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.

Reference sheet in PDF form, 29.3 KB, for the part numbered 2SC5689. Although listed as a schematic, a name made of only a JIS transistor code points to a manufacturer…

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

Component sheet in PDF format, 47.7 KB, named for 2PC4081, probably revision 4 of the document.

This PDF of 71.0 KB is indexed as a schematic for the 2N6520, a JEDEC 2N-series discrete semiconductor number.

A small PDF of 54 KB, catalogued as a schematic and named only with the short code 75hq.

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