ACMT Display & Video Troubleshooting

Question 1

A MacBook Pro's built-in display shows a pink or purple tint after replacement. What is the most likely cause?

Accepted Answer

Display data cable not fully connected or damaged

Answer

Incorrect color profile selected in System Settings

Answer

GPU failure on the logic board

Answer

NVRAM needs to be reset

Question 2

Which test in Apple Service Toolkit 2 (AST 2) verifies that a replacement display is functioning correctly?

Accepted Answer

Display Test (including backlight and pixel tests)

Answer

Battery Health Test

Answer

Network Throughput Test

Answer

SSD Speed Test

Question 3

An iMac displays a blank screen but a startup chime is heard and the Mac responds to keyboard commands. What is most likely faulty?

Accepted Answer

Display assembly or its connection to the logic board

Answer

Logic board

Answer

SSD

Answer

RAM

Question 4

What standard pixel defect policy does Apple use to determine if a built-in display replacement is warranted?

Accepted Answer

Apple's bright or dark pixel policy, which defines acceptable thresholds before replacement

Answer

Any single dead pixel qualifies for replacement

Answer

More than 10 dead pixels are required

Answer

Dead pixels in the center only qualify

Question 5

A customer connects an external display to their MacBook via USB-C, but no image appears. What should the technician check first?

Accepted Answer

Cable compatibility and whether the USB-C port supports DisplayPort Alt Mode

Answer

Whether macOS is up to date

Answer

Battery charge level

Answer

Wi-Fi connection

Question 6

Which keyboard shortcut detects and configures a newly connected external display on a Mac?

Accepted Answer

System Settings > Displays > Detect Displays

Answer

Command + F2

Answer

Option + Brightness key

Answer

Control + Command + Q