Single-component sheet for the 1SV291, saved as a 73.7 KB PDF and tagged as a schematic.

Varactor reference for the 1SV245, saved as a 73.9 KB PDF whose name ends in an underscore that adds nothing.

Schematic for Compal board LA-J171P, provided as a PDF inside a RAR archive. The name gives no laptop brand or model, so the Compal number on the PCB is the key…

FIC MR056B schematic, revision 0.1, in PDF form. The name also refers to W7650, likely the related notebook model or platform.

Samsung Galaxy A21s schematic, model SM-A217F, a compact 558 KB PDF whose name includes a copy suffix.

Troubleshooting guide in PDF for the Samsung I9060 handset, with Tshoo being Samsung's usual short form for troubleshooting.

Repair solution document for the Samsung SM-J260G, supplied as PDF inside a RAR archive of about 1.3 MB.

Repair guide in PDF form for the ASUS EeeBook E402SA notebook, stored in a 761 KB RAR and catalogued alongside schematics.

Small 178 KB PDF schematic for the Lenovo IdeaPad 330S, covering the MIO-KB part; this appears to be a daughter board or keyboard I/O section rather than the main board…

Topstar C46 schematic, revision A, delivered as a 1.33 MB PDF. Boards from the Topstar ODM appear in many white-label laptops, so the C46 marking on the motherboard is…

PDF schematic for the Jetway 845LDA desktop motherboard, about 691 KB in size, with no revision stated in the name.

Repair guide for the ASUS X555LD notebook in a 1.39 MB PDF, catalogued as a schematic. Such documents usually combine circuit pages with diagnostic notes on power…

Circuit diagram for the Samsung SGH-X830 handset, in a 630 KB PDF. SGH is Samsung's prefix for its older GSM phones. The name gives no board revision.

LG M4410 mobile phone schematic, provided as a 1.22 MB PDF. No board revision is listed in the name, so compare the title block with the phone's PCB markings.

Schematic set for the LG B2050 mobile phone in a 709 KB PDF. These drawings let a technician follow the charging and battery circuits, trace power rails, and check…

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

Small 119 KB PDF containing the first part of the Nokia 6310 schematics, apparently a duplicate copy given the (2) suffix in the name.

Schematic for the Nokia 2630, a slim basic handset, in a small 424 KB PDF. The file gives no board revision, so compare the board in hand with the drawings before…

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 2626 circuit schematics supplied as a 789 KB PDF. No revision or product code appears in the name, so verify that components on the board align with the drawings…

Nokia 2220 handset schematic as a 737 KB PDF file. The name carries only the model number, with no revision or board identification.

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.

Circuit schematic for the classic Nokia 3310, an 827 KB PDF. The name carries only the model, with no revision or board code.

Schematic PDF of about 915 KB labelled with the project code M9A0 and MP, which stands for mass production, so it should reflect the final board design.

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…

Small 45.6 KB PDF named 2SD1902, a Japanese standard transistor number; despite the schematic label it is most probably a short datasheet.

Catalogued as a schematic, this 41.7 KB PDF bears the part number 2SC5611 and should be the datasheet for that NPN bipolar transistor.

At only 24.2 KB, the 2SC3989 PDF is a compact document, probably a short datasheet or summary page for this JIS-numbered NPN bipolar transistor despite being indexed as…

Short 108 KB PDF datasheet for the 2SC3601, placed in the schematic section of the index.

Filed under schematics, this 80.8 KB PDF is titled with the part number 2SC2857. The JIS 2SC prefix designates an NPN bipolar transistor, so the content is most likely a…

Small 37.6 KB PDF for the 2SA1900, written in lowercase in the original name and placed in the schematic category; the content is most likely a brief datasheet.

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…

Documentation for the 1SV312 part in PDF form, roughly 72 KB and classed as a schematic.

Very small at 10.8 KB, this PDF named 1n6778 looks like a brief datasheet or spec page for a JEDEC 1N-numbered semiconductor, despite being indexed as a schematic.

Circuit diagram set for the Lenovo ThinkPad E390, delivered as a 1.49 MB PDF. No board number or revision appears in the name, so check the title block inside against…

Repair guide in PDF form for the ASUS UX31E ultrabook, 625 KB, catalogued with schematics.

Spanish PDF, 474 KB, titled CDMA and FSK and numbered 5, apparently a chapter in a communications course.

Spanish document about coils, the file name meaning inductors, a 1.17 MB PDF. No device or board is mentioned, so it is general material on how inductors work, how they…

Repair guide for the ASUS X540SC in PDF format, 621 KB, grouped with schematics in the catalogue.

PDF schematic for the board numbered X910513-008, delivered in a RAR archive of roughly 2.4 MB.