File:Main PCB annotated.jpg

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Description
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

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This file is licensed under the Creative Commons Attribution 2.0 Generic license.
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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

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current06:27, 4 February 2020Thumbnail for version as of 06:27, 4 February 20203,648 × 2,736 (3.47 MB)Ser Amantio di Nicolao (talk | contribs)User created page with UploadWizard

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