File:Main PCB annotated.jpg
Original file (3,648 × 2,736 pixels, file size: 3.47 MB, MIME type: image/jpeg)
Captions
Summary
editDescriptionMain PCB annotated.jpg |
English: Here the main areas on that PCB are identified.
The instrument is powered by a 12V battery which feeds the POWER CONVERTER. This produces LT SUPPLIES (+12V and +5V) to power the instrument and the HT SUPPLIES for the CRT. Timing starts with a 1MHz CLOCK which feeds the TIMING LOGIC. This produces 3 signals : to put a pulse on the line under test via the PULSE GENERATOR circuit; to trigger the horizontal TIMEBASE to sweep the electron beam across the CRT screen and to display the cursor. The reflected signal from the line is fed to the Y AMPLIFIER and displayed on the CRT. |
Date | |
Source | https://www.flickr.com/photos/43851301@N02/37190872190/ |
Author | tony_duell |
Licensing
edit- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
This image was originally posted to Flickr by tony_duell at https://flickr.com/photos/43851301@N02/37190872190 (archive). It was reviewed on 4 February 2020 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
4 February 2020
File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 06:27, 4 February 2020 | 3,648 × 2,736 (3.47 MB) | Ser Amantio di Nicolao (talk | contribs) | User created page with UploadWizard |
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Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Camera manufacturer | NIKON |
---|---|
Camera model | COOLPIX L25 |
Exposure time | 1/25 sec (0.04) |
F-number | f/2.7 |
ISO speed rating | 200 |
Date and time of data generation | 16:46, 30 September 2017 |
Lens focal length | 4 mm |
Orientation | Normal |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | COOLPIX L25 V1.0 |
File change date and time | 16:46, 30 September 2017 |
Y and C positioning | Co-sited |
Exposure Program | Normal program |
Exif version | 2.3 |
Date and time of digitizing | 16:46, 30 September 2017 |
Meaning of each component |
|
Image compression mode | 4 |
APEX exposure bias | 0 |
Maximum land aperture | 2.9 APEX (f/2.73) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash fired, compulsory flash firing |
DateTimeOriginal subseconds | 00 |
DateTimeDigitized subseconds | 00 |
Supported Flashpix version | 1 |
Color space | sRGB |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 0 |
Focal length in 35 mm film | 28 mm |
Scene capture type | Standard |
Scene control | Low gain up |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Macro |