Apple LED Cinema Display 27 User Manual

Display Issues 23
Blank / No Video, No Backlight 23
Noise / Unstable Flicker 26
Unstable Brightness / Brightness Progressively Getting Low 28
LCD Image Issues 30
Physical Damage 35
Uncategorized Symptoms 35
Input/Output Issues 36
USB Issues 36
Camera Issues 38
Audio Issues 39
Uncategorized Symptoms 42
Mechanical Issues 43
Noise / Hum / Vibration 43
Burnt Smell / Odor 44
Fan Failures / Thermal Issues 45
Mechanical Physical Damages 46
Uncategorized Symptoms 46
Take Apart
General Information 48
Opening the Unit 48
Required Tools 48
Required Special Tools for Glass Panel 48
Cleaning Tools Starter Kit 49
Cleaning & Handling Glass Panel 49
Do’s and Don’ts 49
Handling a Broken Glass Panel 49
Safety 54
Reassembly Steps 54
Note About Images in This Guide 54
Stand 55
Removal 56
Reassembly 57
Glass Panel 58
Removal 59
Reassembly 60
LCD Panel 63
Handling LCD Panel 67
EDID Reset Tool 68
LCD Function Cable 69
LCD Temp Sensor Cable 71

Apple LED Cinema Display 27 Specifications

General

Screen Size	27 inches
Resolution	2560 x 1440 pixels
Aspect Ratio	16:9
Panel Type	IPS
Brightness	375 cd/m²
Contrast Ratio	1000:1
Response Time	12 ms
Color Support	16.7 million colors
Built-in Devices	iSight camera, Microphone
Power Consumption	250 W (maximum)
Viewing Angle	178° horizontal / 178° vertical
Ports	Mini DisplayPort, USB 2.0
Power Supply	Integrated