How are known-good parts used during fault isolation?

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Multiple Choice

How are known-good parts used during fault isolation?

Using known-good parts during fault isolation means temporarily swapping in components you know work and then retesting the system. This method helps confirm whether the suspected part is actually causing the fault. If the system works after the swap, the original part was likely faulty; if the problem remains, the issue is elsewhere and you continue testing. It’s a diagnostic step to verify repairs, not a plan to permanently replace everything or perform cosmetic checks.

Using known-good parts during fault isolation means temporarily swapping in components you know work and then retesting the system. This method helps confirm whether the suspected part is actually causing the fault. If the system works after the swap, the original part was likely faulty; if the problem remains, the issue is elsewhere and you continue testing. It’s a diagnostic step to verify repairs, not a plan to permanently replace everything or perform cosmetic checks.

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