hardMultiple ChoiceObjective-mapped
220-1201 Practice Question: A technician is troubleshooting a projector that…
A technician is troubleshooting a projector that displays a faint, ghost-like image even when no input source is connected. The projector has been in use for several years. What is the most likely cause?
⚠ Common exam trap
Candidates often confuse a failing bulb (dimming) with image persistence, but the key clue is the ghost image appearing even when no input source is connected, which isolates the issue to the display panel itself rather than the light source or signal path.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The LCD panel has image burn-in
When a projector displays a faint, ghost-like image with no input source connected, the most likely cause is image burn-in on the LCD panel. This occurs because the liquid crystal material or polarizing layers have been permanently damaged by prolonged static image display, causing residual ghosting even when no signal is present. The fact that the projector is several years old further supports this, as burn-in is a cumulative effect over time.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The projector bulb is nearing the end of its life
Why it's wrong here
A dying bulb causes dimness or a yellow tint, not a ghost image with no input.
- ✓
The LCD panel has image burn-in
Why this is correct
Prolonged display of static images can cause permanent burn-in on LCD panels, resulting in a ghost image.
- ✗
The input cable is picking up interference
Why it's wrong here
Interference would cause noise or distortion, not a persistent ghost image when no cable is connected.
- ✗
The projector's lens is dirty
Why it's wrong here
A dirty lens would cause blurriness or spots, not a ghost image of a previous display.
Go deeper
Related to this question
Learn chapter
GPUs and Display Technologies
Key term
Ghosting
Ghosting is a printing defect where faint, unintended images or text appear on printed pages, often due to residual toner or ink left on a component from a previous print cycle.
Key term
Image
An image is a complete snapshot of a system's operating system, applications, and settings, used to deploy or restore computing environments quickly.
About these practice questions
One of 972 original 220-1201 practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. Learn why practice questions differ from exam dumps →
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 220-1201 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 220-1201 exam.