Samsung Test Using Codes
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Questions and Answers

Which tool is primarily used for removing solder from a printed circuit board?

  • Multimeter
  • Hot Air Blower
  • Precision Screwdriver
  • Desolder Wick (correct)

    • What is the primary function of the magnifying lamp in electronic repair?

  • To measure voltage
  • To provide light for improved visibility (correct)
  • To heat components
  • To clean the area

    • Which of the following tools is NOT typically classified under basic soldering equipment?

  • Solder Wire
  • Hot Plate
  • Thinner
  • DC Power Supply (correct)

    • Which item is essential for protecting against electrostatic discharge (ESD) during electronic repairs?

    <p>ESD Wrist Strap</p> Signup and view all the answers

    What is the purpose of liquid flux in soldering?

    <p>To facilitate solder flow</p> Signup and view all the answers

    What should happen when the TSP Hovering test is performed correctly?

    <p>The grid will turn green.</p> Signup and view all the answers

    Which code is used to test the front camera's functionality?

    <p><em>#0</em>#</p> Signup and view all the answers

    What must be heard when the speaker test is executed successfully?

    <p>A clear melody.</p> Signup and view all the answers

    When conducting the image test, what should happen as the phone is rotated?

    <p>The image must rotate according to the direction of the phone.</p> Signup and view all the answers

    What indicates that the autofocus and flash function are operating correctly?

    <p>Captured images are vivid.</p> Signup and view all the answers

    What should you expect when the sensor test is successful?

    <p>The grid will turn green.</p> Signup and view all the answers

    What result indicates that the TSP Hovering test failed?

    <p>The grid stays the same.</p> Signup and view all the answers

    Which outcome indicates a failure during the front camera functionality test?

    <p>Captured image appears dimly.</p> Signup and view all the answers

    What generation of mobile technology does GSM belong to?

    <p>Second Generation</p> Signup and view all the answers

    Which component is part of the Base Station Subsystem (BSS) in GSM architecture?

    <p>Base Transceiver Station (BTS)</p> Signup and view all the answers

    What is the primary function of the Mobile Switching Center (MSC) in GSM?

    <p>Connect calls and manage resources</p> Signup and view all the answers

    Which of the following is NOT a service provided by GSM?

    <p>Data services with 3G technology</p> Signup and view all the answers

    What does the Visitor Location Register (VLR) do in a GSM network?

    <p>Keeps track of user locations and subscriptions</p> Signup and view all the answers

    Which of the following statements about LTE and VoLTE is accurate?

    <p>VoLTE provides voice over the LTE network.</p> Signup and view all the answers

    Which component is responsible for authenticating users in GSM?

    <p>Authentication Center (AuC)</p> Signup and view all the answers

    In which phase of mobile technology evolution was GSM introduced?

    <p>2G phase</p> Signup and view all the answers

    What was Samsung's initial primary focus when founded in 1938?

    <p>Exporting dried fish and produce</p> Signup and view all the answers

    What strategic industries did Samsung invest in during the 1970s?

    <p>Heavy, chemical, and petrochemical industries</p> Signup and view all the answers

    What vision guided Samsung's transformation in the mid-1990s?

    <p>Quality first</p> Signup and view all the answers

    How did Samsung manage to grow during the 1997 financial crisis?

    <p>Through leadership in digital technologies</p> Signup and view all the answers

    During which period did Samsung begin exporting products for the first time?

    <p>Late 1970s to early 1980s</p> Signup and view all the answers

    What does the name 'Samsung' mean in Korean?

    <p>Three stars</p> Signup and view all the answers

    What major challenge did Samsung face in the early 1990s?

    <p>Global competition in high-tech businesses</p> Signup and view all the answers

    What significant change did the digital age bring to Samsung's business?

    <p>Need for constant innovation and advanced technologies</p> Signup and view all the answers

    What is the primary function of a Digital to Analog Converter (DAC)?

    <p>To convert a processed digital signal back into an analog signal</p> Signup and view all the answers

    Which statement accurately describes an Analog to Digital Converter (ADC)?

    <p>It converts analog signals into digital codes for processing.</p> Signup and view all the answers

    What characteristic is commonly associated with a power amplifier?

    <p>It converts low power signals into higher power signals.</p> Signup and view all the answers

    What does a frequency converter primarily do?

    <p>Changes fixed frequency sine wave power to variable frequency power.</p> Signup and view all the answers

    Which component is NOT part of the internal process for voice conversion and transmission?

    <p>Digital synthesizer</p> Signup and view all the answers

    What is a key application for RF power amplifiers?

    <p>Exciting microwave cavity resonators</p> Signup and view all the answers

    Which statement correctly explains the relationship between analog and digital signals?

    <p>Digital signals are typically derived from analog signals through conversion.</p> Signup and view all the answers

    What aspect is NOT important for a power amplifier’s performance?

    <p>Signal clarity in digital form</p> Signup and view all the answers

    Study Notes

    Testing Phone Functions

    • Check autofocus and flash functionality upon capturing an image, ensuring clarity in the captured photo.
    • Validate touch capabilities by using code #0#; a grid should turn green when touched.
    • Test TSP (Touch Screen Panel) hovering by bringing a finger close to the grid without contact; successful hovering prompts a grid color change.
    • Play a melody through the speaker using code #0#; a clear sound indicates proper functionality.
    • Verify the front camera by entering preview mode and capturing an image; ensure it is clear and vivid.
    • Conduct an image sensor test via #0#; the image orientation must adjust according to the phone's position.

    GSM Technology Overview

    • GSM (Global System for Mobile Communication) represents a global standard for mobile communications.
    • Generational evolution of mobile technology includes:
      • 1G: First Generation
      • 2G: Second Generation
      • 3G: Third Generation
      • 4G: Fourth Generation
      • 5G: Fifth Generation
    • Understand the distinction between LTE (Long Term Evolution) and VoLTE (Voice over LTE) for enhanced mobile networking.

    Structure of GSM

    • Key components of GSM architecture involve:
      • Mobile Station (MS)
      • Base Station Subsystem (BSS)
      • Network Switching Subsystem (NSS)
      • Mobile Switching Center (MSC)
      • Visitor Location Register (VLR)
      • Authentication Center (AuC)
      • Equipment Identity Register (EIR)

    Samsung's History

    • Samsung was founded on March 1, 1938, by Byung-Chull Lee, initially focusing on trade exports in agricultural products.
    • The name "Samsung" translates to "three stars" in Korean, marking its early growth into manufacturing.
    • The 1970s marked a pivot to heavy, chemical, and petrochemical industries, alongside a foray into home electronics.
    • By the late 1970s and early 1980s, Samsung diversified efforts to rank among the top five global electronics companies.

    Advancements and Global Influence

    • In the mid-1990s, Samsung’s commitment to quality shifted business strategies, aiming for customer satisfaction and innovation.
    • Despite the 1997 financial crisis impacting many companies, Samsung thrived, leveraging advancements in digital and network technologies.
    • The transition to the digital age prompted Samsung to innovate continuously, enhancing its competitive position in global markets.

    Key Concepts in Voice Transmission

    • Analog to Digital Converter (ADC): Converts analog signals to digital codes, allowing processing in computer systems.
    • Power Amplifier: Boosts low power radio signals to significant power suitable for transmitter antennas.
    • Frequency Converter: Adjusts fixed frequency power to variable frequency and voltage for diverse applications.

    Internal Voice Processing

    • Understanding the components and processes is crucial to comprehending the voice transmission system effectively.

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    Description

    This quiz assesses your understanding of the Samsung test codes and their functions. It includes scenarios involving auto focus, flash functionality, and touch screen interactions. Test your knowledge on how each grid responds during the process.

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