Component sheet for the 2SA1723, an 80.1 KB PDF. The name holds only the part number, so no equipment model or board revision can be attached to it.

Part reference for the 2SA1708, saved as a 154 KB PDF. No device, brand or board number is present in the name, only the component designation.

A PDF of about 155 KB for the JEDEC part number 2N6338, filed under schematics but almost certainly a component datasheet.

Preamplifier schematic, the file name being the Romanian word for preamp, delivered as a 574 KB PDF with no model or brand stated.

PDF covering the BF458 and BF459 transistors, a compact 49.2 KB file listed as a schematic but most likely a shared datasheet.

The 2SD2285 is documented in this 128 KB PDF. Its JIS part number, with the 2SD prefix, places it among NPN transistors intended for low-frequency circuits such as…

The 2SD1907 is covered by this 165 KB PDF, which is catalogued as a schematic but by name is a component datasheet.

The 2SK545 is covered by this 80.4 KB PDF, filed as a schematic but most likely a datasheet because 2SK numbers identify N-channel field-effect transistors in the…

An 88.2 KB PDF carrying only the part number 2SC4125, filed as a schematic though it is most likely a component datasheet.

Part documentation for the 2SC5302 in PDF form, 89.2 KB, placed in the schematic section of the index.

Power supply schematic for a Toshiba TCL L32S4900S television, covering the PLE55-1A power board, revision 1.1, as a 4.53 MB PDF; fonte is Portuguese for power supply.

Audio Pro Ace Bass B4-200 subwoofer service manual, going by the AceBassB4_200, sub and sm tokens.

Audio Pro Ace Bass B2-40 subwoofer service manual in PDF form, about 1.96 MB, as indicated by the sub and sm tags.

Third edition of a beginner's guide to reading schematics, a 3.33 MB PDF. It is an educational text rather than a diagram for a specific device.

Combined data document for the BD135, BD137 and BD139 transistors, filed under schematics, 51.0 KB in PDF form.

Reference sheet for the 2SD2607 component, delivered as a 51.7 KB PDF and filed under schematics. No brand or variant appears in the name beyond the part number itself.

PDF sheet, 47.9 KB, named for the 2SC4070 transistor and filed as a schematic. JIS naming assigns the 2SC prefix to NPN bipolar transistors; package, maker and…

Here is a 42.1 KB PDF on the 2SC3707 transistor, listed in the schematic category. The trailing E after the part number is not explained in the name and should be read…

Datasheet-style PDF of 101 KB for the 2SA1731, indexed under schematics but named only by part number with no device or board information.

RAR archive of about 20 MB described in Portuguese as schematics with voltages in PDF format; no brand or model is named, so the contents must be checked after…

Compact PDF datasheet for the MPSA06, an NPN general-purpose transistor rated in the file name at 80 V and 500 mA.

Datasheet for the BUW84 and BUW85 NPN power transistors, as stated in the name, in a 101 KB PDF indexed as a schematic.

Small PDF of about 30 KB filed as a schematic for the 3SK241 part number. The 3SK prefix is the Japanese JIS designation for four-lead field-effect transistors…

Named after the 2SD2282, this 129 KB PDF is most likely the transistor's datasheet, despite the schematic classification in the index.

At 45.2 KB this is a short PDF named for the 2SC4160 part number; it is filed as a schematic but most likely amounts to a brief transistor datasheet.

Reference document for the 2SA1730 transistor in PDF form, 97.6 KB in size. Only the part number appears in the name, so no specific equipment can be tied to it.

Schematic in PDF form labelled safari std, a name that in DIY audio circles usually refers to a Safari power amplifier design, standard version, though the file name…

PCB artwork for the top side of an R2 class power amplifier rated around 500 watts into a 4 ohm load, saved as a 177 KB PDF.

Sony KDL-40V3000 schematic covering both the power supply and the backlight inverter, packed in a single 1.65 MB PDF.

Bottom-side PCB layout for the R2 amplifier design rated 500 watts at 4 ohms, stored as a 138 KB PDF.

Schematic of a Class H audio power amplifier, described in Spanish as a Thai design, delivered as a small 718 KB PDF.

Compact 311 KB PDF schematic whose name suggests a bipolar transistor design, probably an audio amplifier, though the label 5_5bipolar_msg is cryptic and gives no brand…

Large PDF of about 30 MB titled SMD codes 2014, a reference book of marking codes for surface-mount components rather than a board schematic.

Sheet for the TIP31 NPN and TIP32 PNP complementary power transistor pair, with the name stating 100 V and 3 A ratings; the PDF is 198 KB and listed under schematics.

The 2SD1937 transistor is the subject of this 42.0 KB PDF, whose name ends with an _E suffix that is not explained.

Spanish tutorial on recognising components in a schematic, a 310 KB PDF intended as training rather than a diagram for a specific device.

PDF SMD codebook for mobile repair, 3.04 MB, listing marking codes found on small surface-mount parts.

Schematic in PDF for a Sony power supply with part number 1-474-218-11, designed by Delta as model APS-272.

Schematic in PDF form for the Samsung power supply board BN44-00300A, with the name marked as tested, suggesting the drawing was checked against a real board.

SMD Codebook in PDF form, 3.04 MB, a reference listing marking codes found on small surface-mount parts. It is not a schematic for a specific device.