This set of Audio Video Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Troubleshooting – Procedure of Servicing and Maintaining”.
1. Which of the following is defined as the thorough checking of equipment periodically as per the schedule prescribed in the service manual?
a) Servicing
b) Maintenance
c) Shielding
d) Grounding
View Answer
Explanation: The thorough checking of equipment periodically as per the schedule prescribed in the service manual is termed as servicing. Servicing can be done by:
i) Changing the battery/cells if used or if any other change is required.
ii) By checking the operating knobs for any play or backlash and rectifying it.
iii) By keeping the equipment free of dust, grease, oil and webs.
2. Signal tracing can be done by simple diode trace or CRO in circuit tracing techniques.
a) True
b) False
View Answer
Explanation: To find fault in equipment, it can be divided into 3 parts: i) Section ii) Stages and iii) Components. Here the faulty section is isolated first. In determination of faulty stage/section signal tracing can be done by simple diode trace or CRO. If signal is absent at output, the stage is considered faulty.
3. From where does tracing start to determine the faulty component in an isolated stage in circuit tracing techniques?
a) Section
b) Stages
c) Component
d) Pinpoints
View Answer
Explanation: Measurements at pinpoints of active device can identify faulty component which can be traced by a continuity tester. Tracing is started at pinpoint and goes till a component is reached and then to ground connection in the faulty components in an isolated stage.
Sanfoundry Global Education & Learning Series – Audio Video Engineering.
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