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  2. Troubleshooting - Wikipedia

    en.wikipedia.org/wiki/Troubleshooting

    Troubleshooting is a form of problem solving, often applied to repair failed products or processes on a machine or a system. It is a logical, systematic search for the source of a problem in order to solve it, and make the product or process operational again. Troubleshooting is needed to identify the symptoms.

  3. Polarity symbols - Wikipedia

    en.wikipedia.org/wiki/Polarity_symbols

    Diagram showing positive tip polarity on the left and negative tip polarity on the right. To read diagram: The center positive drawing on the left indicates that the center (also known as the tip) of the output plug is positive (+) and the barrel (ring) of the output plug is negative (−). Center positive symbol Center negative symbol

  4. USB hardware - Wikipedia

    en.wikipedia.org/wiki/USB_hardware

    Comparison of legacy USB connector plugs, omitting the current standard Type‑C plugs. (All three Micro connectors are shown inverted.) Unlike other data buses (such as Ethernet), USB connections are directed; a host device has downstream-facing ports that connect to the upstream-facing ports of peripherals.

  5. Coaxial power connector - Wikipedia

    en.wikipedia.org/wiki/Coaxial_power_connector

    A common coaxial power connector, male (left) and female (right), 5.5 × 2.5 mm. Connector gender is determined by the center contact. Note: connectors depicted do not connect with each other.

  6. JST connector - Wikipedia

    en.wikipedia.org/wiki/JST_connector

    End-users and 3rd-party sellers on eBay often describe connectors by their wrong name thus perpetuating confusion of the exact series of a specific connector. It is very common in blogs and websites to incorrectly name a specific connector only by the name of the manufacturer.

  7. The #1 Mini-Stroke Symptom Most People Miss, According ... - AOL

    www.aol.com/1-mini-stroke-symptom-most-102500066...

    The symptoms of a mini and major stroke aren't much different, but Dr. Itrat says ones from a TIA will resolve in a short timeframe. In either case, calling for help is critical. However, Dr ...

  8. DC connector - Wikipedia

    en.wikipedia.org/wiki/DC_connector

    A male 4-pin "Kycon" power connector, which appears similar to a Mini-DIN connector Right-angle DC connector. Snap and lock DC power connectors look similar to Mini-DIN connectors but have either 3 or 4 thicker pins and a slightly larger mating shell. Because of this, they do not mate with any of the standardized Mini-DIN connectors.

  9. Nickel–metal hydride battery - Wikipedia

    en.wikipedia.org/wiki/Nickel–metal_hydride_battery

    NiMH charge curve. To prevent cell damage, fast chargers must terminate their charge cycle before overcharging occurs. One method is to monitor the change of voltage with time. When the battery is fully charged, the voltage across its terminals drops slightly. The charger can detect this and stop charging.