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CompTIA A+ 220-801

Category - 801: Procedures

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What is the proper procedure for fixing a CRT monitor?
  1. There is no proper procedure; you should not attempt to fix a CRT monitor.
  2. Leave the CRT monitor plugged into the wall for grounding purposes.
  3. Unplug the CRT monitor and use an ESD antistatic wrist strap.
  4. Unplug the CRT monitor but do not use an ESD antistatic wrist strap.
Explanation
Answer: A - There is no proper procedure for fixing a CRT monitor and technicians should not attempt to do so.

Key Takeaway: CRT monitors hold an incredible charge at all times, and therefore it can be extremely dangerous to attempt to fix a faulty CRT monitor. Although there is some truth in not using an ESD antistatic wrist strap, rather than provide grounding, connecting the wrist strap to metal in the monitor could cause severe electrical shock. If a CRT absolutely must be fixed, it should be sent to the manufacturer and not attempted in-house.
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