Specifications

LED Cinema Display (24-inch) Symptom Charts — Display Issues 28
2010-02-08
Deep Dive: Incorrect/Missing Colors
Unlikely cause: power supply, blower, subwoofer, speakers, camera, microphone
Check Result Action Code
Verify display’s USB hub and 1.
built-in camera are listed in the
System Proler’s USB device
tree.
Yes Power supply and USB
communication OK.
Go to step 2.
No
Go to USB Issues symptom
code ow.
Verify System Preferences: 2.
Displays: Color is using a valid
display prole for this display.
Yes If display prole is valid and
the colors are still incorrect or
missing, go to step 3.
No Calibrate display by creating a
manual prole using calibrate
feature in System Preferences:
Displays: Color. Retest.
Verify that the glass panel and 3.
LCD are free of contaminants.
Yes Go to step 4.
No
Clean glass/LCD panel.
Retest.
Verify all connections between, 4.
all-in-one cable, LCD, and
logic board are secure. See
Functional Overview.
Yes Go to step 5.
No Reseat connections, replace
damaged cable(s) as needed.
Retest.
Set desktop pattern in System 5.
Preferences to “solid gray light.”
Verify if incorrect/missing color
issue aects entire display.
Yes
Suspect poor video
connection.
Replace all-in-one cable.
L14
No Go to step 6.
Set up user’s display side-by-6.
side with a known-good display
showing the same image. Verify
if issue is noticeably worse on
the display being tested.
Yes
Replace LCD panel. L02
No Small variations in color
uniformity are normal and do
not warrant replacement or
repair of the display.