TNP #8 - Teardown & Detailed Analysis of the U2001A 6GHz Agilent USB Power Sensor
25.1K views
September 5, 2021 3:23 PM
In this episode Shahriar takes a close look at the design and architecture of an Agilent USB Power Sensor. The principle operation of different power detectors is presented alongside various block diagrams and schematics. The teardown of the power sensor reveals the system components from the integrated sensor MMIC to the ADI BlackFin DSP core. The detector is further examined under the microscope and the dual-diode detector design is presented.
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TNP #7 - Ynvisible Electrochromic Ultra-low Power Segmented Display Technology
21.6K views
August 21, 2021 5:22 PM
In this episode Shahriar takes a look at an ultra-low power display technology. The Ynvisible Segment Display is an electrochromic display. It is categorized as a reflective display, meaning that it reflects ambient light instead of using a backlight. All layers are screen printed on a plastic substrate.
The display stack consists of organic layers including a plastic substrate, an electrochromic material, an electrolyte, and an electrode for each segment. Additional layers such as graphical overlays and circuits may be added if required.
You can find more information about this display technology at:
https://www.ynvisible.com/
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TNP #6 - Teardown & Analysis of a Keysight (Agilent) 9GHz Electronic Calibration Module (ECal)
17.1K views
August 14, 2021 10:45 PM
In this episode Shahriar analyzes the principle operation of an Electronics Calibration Module also known as ECal. This unit operates up to 9GHz and is one of the earlier models produces by Agilent. The block diagram of the unit is presented as well as a detailed teardown of the RF core assembly. The various built-in standards can be clearly seen as well as the solid-state switch networks which connects them to the network analyzer ports.
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TNP #5 - Teardown & Analysis of Damaged Anritsu K250 40GHz & SHF 123B 65GHz Bias-T Blocks
16.7K views
August 14, 2021 4:38 PM
In this episode Shahriar takes a look at some mailbag RF components. The set of Anritsu Bias-T blocks all have damaged DC paths. The teardown of the Bias-T shows its internal construction and assembly procedure. The SHF Bias-T offers a much more sophisticated and broadband response. A single Bias-T has survived with only a broken DC connector which is repaired and measured.
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TSP #198 - Teardown, Repair & Analysis of an Anritsu MG3700A 6GHz Vector Signal Generator (Part 1)
23.2K views
August 8, 2021 6:14 PM
In this episode Shahriar attempts to repair an Anritsu MG3700A Vector Signal Generator. The instrument does not fully power on and suffers from several problems. The digital IF board as well as the main computer are presented. The power-on fault is traced to a faulty fuse on the 5V power supply which feeds the main CPU board. A new fuse enables the instrument to fully boot.
The unit also exhibits a failure for all signals above 3GHz. The instrument is equipped with a super hetrodyne mixer board which covers 3GHz – 6GHz output range. This RF board is examined and explored in details alongside the block diagram of the unit. The fault is traced to a unidentifiable component (potentially PIN diode switches). Bypassing these components allows the instrument to generate sufficient power. However, the repair must stop here for now until these parts can be identified.
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