iMac (27-inch, Mid 2010) Symptom Charts — Display 69
2010-09-09
Cosmetic Defects
Symptoms Quick Check
Cosmetic Defects to LCD
• Cracked glass panel
• Cracked LCD
• Scratched LCD polarizer
• Scorched or melted LCD
• LCD impact damage
• Foreign material on LCD or
back side of glass panel.
1. Replace glass panel. Refer to Take Apart/General
Information/How to Remove a Broken Glass Panel
2. Determine if damage was caused by user
environment, accidental damage, or abuse. If
applicable, inform user that Apple does not
warrant damage caused by accident, abuse,
misuse, ood, re, earthquake, or other external
causes. For more information refer to: http://
www.apple.com/legal/warranty
3. For dark and bright pixel anomalies see Pixel
Anomalies symptom ow.
Uncategorized Symptoms
Quick Check
Symptoms Quick Check
Uncategorized Symptoms
• Unable to locate appropriate
symptom code.
1. Make sure brightness level is set above minimum.
2. Clean glass panel to make sure external
contaminants are removed prior to evaluating
display performance.
3. Allow LCD display to warm up approximately
a minute before evaluating display color and
brightness uniformity performance.
Deep Dive
Check Result Action Code
1. Verify if existing symptom code
applies to issue reported by
user.
Yes Jump to appropriate
symptom code ow.
No Document reported failure
and send feedback to
smfeedback2@apple.com
stating that a suitable
symptom code wasn’t found.
Provide as much detail as
possible.
N99