Apple Thunderbolt Display User Manual

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Troubleshooting Your Display
Before performing any of these steps, make sure your computer is turned on, the
display is plugged into a grounded power outlet, all the cables are connected properly
to your computer and display, and your computer is not in sleep mode.
If the screen doesn’t have an image:
 Check the cables and connectors again to make sure they are connected properly to
your computer and the display.
 Make sure your computer is turned on and is not in sleep mode. If the lid on your
MacBook Pro is closed, use the external keyboard or mouse to wake the MacBook Pro
from sleep.
 Unplug the display’s power cord from the grounded power outlet, wait a few
minutes, then plug it in again.
 Reset the PRAM by restarting your computer while holding down the Command (x),
Option, P, and R keys until you hear the startup sound a second time.
If the screen is dim:
 Make sure the display brightness is set properly. Choose Apple () > System
Preferences and click Displays. Drag the Brightness slider to adjust the brightness.
 If the colors on the display are too saturated or not correct, you may need to calibrate
your display. Open Displays preferences, click the Color tab, click Calibrate, and follow
the instructions.
If your MacBook Pro isn’t charging:
Make sure the MagSafe connector from your display is seated properly in the MagSafe
power port on your MacBook Pro.

Apple Thunderbolt Display Specifications

General

3D	No
Panel type	TFT
Aspect ratio	16:9
Response time	12 ms
Display diagonal	27 \
Display technology	LCD
Contrast ratio (dynamic)	-
Contrast ratio (typical)	1000:1
Display number of colors	16.78 million colors
Display brightness (typical)	375 cd/m²
Supported graphics resolutions	2560 x 1440
Built-in subwoofer	Yes
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Ethernet LAN (RJ-45) ports	1
Minimum system requirements	MacBook Air / MacBook Pro / Mac mini / Mac Pro / iMac
USB hub version	2.0
VGA (D-Sub) ports quantity	0
USB Type-A downstream ports quantity	3
Number of speakers	2
Product color	Black, Silver
Mac operating systems supported	Mac OS X 10.6 Snow Leopard
Cable lock slot type	Kensington
AC input voltage	100 - 240 V
AC input frequency	50 - 60 Hz
Power consumption (standby)	2 W
Power consumption (typical)	250 W
Operating altitude	0 - 3000 m
Storage temperature (T-T)	-40 - 47 °C
Operating temperature (T-T)	10 - 35 °C
Operating relative humidity (H-H)	20 - 80 %
Cables included	AC

Weight and Dimensions

Depth (without stand)	207 mm
Width (without stand)	650 mm
Height (without stand)	491 mm
Weight (without stand)	10800 g