Schematic document for the Sony VAIO VGN-AR71MR notebook, supplied as a 1.17 MB PDF. No motherboard MBX number or revision appears in the name, so compare the board code…

Samsung E1200i schematic supplied as a small 707 KB PDF. The name lists only the model, a basic feature phone, and no board revision.

Circuit diagrams for the Nokia E70, the fold-out keyboard handset, in a 1.80 MB PDF file.

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 3100 circuit schematic in a compact 278 KB PDF. The name holds only the model number, without revision or board code, so confirm the drawing matches your phone.

Lenovo E40 circuit diagram as a 1.38 MB PDF, whose name states the model alone. Board number, designer and revision should be read from the pages, and a similarly sized…

PDF schematic for the IBM ThinkPad X61, 1.42 MB, with no board number or revision stated in the name.

Schematic for the W3V-A board, provided as a 1.55 MB PDF, where the A suffix likely marks a variant although the name does not say so.

Schematic for the UL50AT, a 1.23 MB PDF whose name states only this model code, without brand, board number or revision.

Circuit diagram for the K42JR notebook motherboard in PDF format, 2.30 MB. The name holds only the model code, without a revision or board number, so the title block and…

Schematic PDF of 672 KB whose name only gives C660, most likely a model designation, with no brand, board number or revision stated, so the exact device has to be…

ASUS repair guide for the K53SV notebook, provided as a 593 KB PDF and filed as a schematic.

ASUS repair guide for the K43SV notebook in a 630 KB PDF, filed in the schematic category.

Schematic in PDF titled only N5110, 1.45 MB, with no brand, board number or revision given in the name.

Quanta TT9 laptop motherboard schematic at revision R1A, delivered as an 820 KB PDF. Quanta manufactures notebooks for several brands and identifies boards with project…

Schematic for the board LA-L99GP, compressed in a 4.09 MB RAR archive; the LA- code is the Compal numbering scheme, though the name does not state the laptop brand or…

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…

Schematic PDF for the Bitland BM5688 board, a design from the ODM Bitland, which builds laptops and tablets for various brands.

Schematic diagram for the Gigabyte GA-B250M-D2V desktop motherboard, revision 1.0, in a 1.33 MB PDF.

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

Large 962 KB PDF for the LM324P, the quad operational amplifier in a plastic DIP package, as the P suffix commonly indicates.

Small PDF of 92.1 KB filed under schematics, though its name is simply the part number 2SD1998, so it is almost certainly a component datasheet rather than a board…

Component document for the 2SK2745 in PDF form, 399 KB, filed as a schematic. Because 2SK is the Japanese JIS prefix for N-channel field-effect transistors, the file…

2SK1841 documentation in PDF form, 90.4 KB in size and listed as a schematic. The 2SK designation in the Japanese JIS system indicates an N-channel FET, so expect…

Reference PDF for the 2SK1457, filed under schematics and 122 KB in size. The file name carries only the part number.

Data for the 2SJ608 in a lightweight 27.9 KB PDF, indexed as a schematic. Under the Japanese JIS scheme the 2SJ prefix denotes a P-channel FET, so this is likely a…

Catalogued as a schematic, this 361 KB PDF carries only the part number 2SJ567 in its name.

Part-number reference for the 2SC4433 in PDF form, about 71.5 KB. The name gives no board or device, only the JIS designation, where 2SC denotes an NPN bipolar…

Specification document for the 2SC5549 transistor, a 205 KB PDF in the schematic category.

Covering the 2SC5019, this 41.9 KB PDF carries an _E suffix and is indexed as a schematic.

Indexed as a schematic, this 195 KB PDF carries just the type number 2SC3803. In JIS semiconductor naming, 2SC stands for an NPN transistor, so the content is most…

PDF document labelled as a schematic but named after the 2SC5387, a Japanese-numbered NPN bipolar transistor part number, so in practice it is almost certainly the…

PDF document named after the 2SC5332 part number, filed here under schematics but most likely a component datasheet rather than a board diagram.

A 106 KB PDF for the 2SC3143, which the JIS 2SC designation marks as an NPN bipolar transistor.

A 145 KB PDF filed under schematics and named only after the part number 2SC2814, so it is most likely the component's datasheet rather than a board diagram.

Catalogued under schematics, this 51.3 KB PDF is named after the 2SC1473, which by the Japanese JIS convention is an NPN bipolar transistor, so it is most likely a…

PDF document of 196 KB identified only by the part number 2SA2058. Under the Japanese JIS convention, 2SA parts are PNP bipolar transistors, so this is almost certainly…

Datasheet-style PDF for the 2SA1241, 279 KB in size and filed among schematics. Nothing else is given in the name, so expect the usual electrical characteristics rather…

Compact PDF, 45.7 KB, named 2N2102 and catalogued under schematics. The 2N prefix belongs to the JEDEC scheme for discrete semiconductor parts, so the document is most…

A 61.0 KB PDF for the 2N4125 part number, the plain-named counterpart to an RE variant also present in the index.