Schematic for the Nokia N95, 2.63 MB PDF. The name gives no RM code or board revision, and the N95 came in several variants, so check the phone's type label against the…

Schematic for the LG G7070 mobile handset, supplied as a 3.24 MB PDF. The name does not list a board revision, so verify the title block against the markings on the…

Schematic for the Fly B400 mobile phone, packaged as an 819 KB PDF. Circuit sheets like these show the power management, battery and charging section, keypad, display…

Samsung SM-G955F schematic, a 4.88 MB PDF. Samsung service schematics normally include circuit sheets for power management, charging, display, camera, audio and RF…

Schematic for the Samsung SM-A320F, supplied as a 3.51 MB PDF. The circuit pages cover the power management IC, battery and charging path, display and touch interfaces…

Schematic diagrams for the Samsung SM-G950F, a 4.28 MB PDF. The sheets let you follow power from the battery connector through the PMIC and charger, then out to the…

Nokia 6500 schematic in PDF format, 420 KB; the name does not specify whether it covers the 6500 classic or the 6500 slide, so check the board against the drawings…

Large 106 MB archive with a Persian title meaning all Sierra car players, so it likely gathers firmware or dumps for Sierra brand car audio head units.

PDF for the complementary TIP3055 NPN and TIP2955 PNP power transistors, 50.1 KB, indexed under schematics.

Labelled 2SD1997, this 86.1 KB PDF is indexed as a schematic, yet a bare transistor part number points to a manufacturer datasheet.

Datasheet in PDF form for the 2SK1067, a member of the 2SK family of N-channel FETs, at 144 KB. The file carries no further details in its name.

Compact 79.7 KB PDF for the 2SJ413, indexed under schematics but by its number a single-component datasheet.

Indexed as a schematic, this 40.2 KB PDF is named 2SB1220 with an _E suffix and almost certainly contains the datasheet for that JIS transistor.

Small 44.1 KB PDF named after the 2SA1292, a PNP bipolar transistor according to the JIS 2SA designation.

Schematic package for the Tecno / Infinix model coded X688B, compressed into a 951 KB ZIP. The name provides no board revision or sub-board details.

Spanish-language guide titled Principales fallas en celulares, the main faults in mobile phones, a 1.34 MB PDF not tied to a specific model or brand.

STK4121V datasheet in PDF format, 92 KB, covering a hybrid audio power amplifier module from the Sanyo STK series.

Datasheet for the TDA7294, a well-known high-power audio amplifier IC commonly found in hi-fi amplifiers, active speakers and DIY amplifier builds, supplied as a 1.13 MB…

Circuit schematic for the subwoofer 7294 project, version 1.1, a 55 KB PDF. The name suggests an amplifier built around the TDA7294 audio power IC, but the PDF itself…

PDF schematic of roughly 64 KB for a function daughterboard of the X63C project, a Quanta code associated with the HP ProBook 450 G3 elsewhere in this collection; no…

Troubleshooting guide in PDF for the Samsung SM-A115 smartphone, archived as a 4.14 MB RAR.

Schematic diagram for the Vivo Y91 smartphone, delivered as a 1.7 MB PDF. It shows the circuit blocks of the phone such as power management, charging, display, camera…

Samsung schematic set for the SM-A415F phone, packed as an 8.6 MB RAR archive. This model code belongs to Samsung's Galaxy A series.

Schematic diagram and service manual for the Xiaomi Redmi 4A smartphone, in a 2.44 MB RAR archive despite being listed under firmware.

PDF schematic of 45.2 KB for a Dynatech V5000 SMD preamplifier with display section, plus an inverter design attributed to Pappu.

Small 31 KB PDF schematic of an IO board for a project code-named Michigan, version A01 with a 0312 tag, probably a date.

Lenovo A366T smartphone schematic diagrams, archived as a 765 KB RAR file; the name lists circuit drawings only, without a service manual.

Level 2 service manual for the Alcatel One Touch OT-282, which the name also identifies by the code MTC282, likely an operator-branded designation of the same handset.

Small 62.2 KB PDF covering the peripheral circuitry (periferie) for the Quanta ZG5 board, likely the daughterboard or connector section rather than the full mainboard.

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 Galaxy A5 schematic for the SM-A500H, distributed as a 7.38 MB PDF. The name gives no board revision.

Second part of the Nokia N95 schematics, a 2.04 MB PDF; the number in the name implies the full set is split into several files, so locate the remaining parts for…

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 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 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.

Compact 64.3 KB PDF application note for the XR2206 function generator chip from Exar. It is intended as a practical reference for how the IC is wired in a working…

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