Apple led cinema display 24inch User Manual

© 2008-2010 Apple Inc. All rights reserved.
 Apple Technician Guide 
Take Apart
LED Cinema Display (24-inch)   

LED Cinema Display (24-inch) Take Apart — General Information 42 2010-11-25
General Information
Opening the Unit
• The LED Cinema Display (24-inch) has a glass panel that attaches to the front, which must be removed prior to replacing any module on the unit.
•
 
Imp
 ortant: The glass panel should only be removed by Apple-authorized technicians.  
Follow all cleaning and handling instructions to prevent damaging glass panel or LCD panel.
•
 
F
 ollow ESD precautions when glass panel is removed.
For more...

LED Cinema Display (24-inch) Take Apart — General Information 43 2010-11-25
Cleaning Tools Starter Kit
The following tools are offered in the cleaning starter kit (076-1277):
• 
Suc
 tion cups, 1 pair
•
 
G
 loves, lint-free, anti-static, 2 pairs
•
 
S
 ticky silicone roller (6-inch) to clean the glass panel
•
 
S
 ticky sheets to clean the silicone roller, 2 pads
•
 
P
 olishing cloths, clean, anti-static, optical-grade micro-fiber “terry” style, 5 cloths
•
 
M
 icrofoam bag to store the glass panel, 5...

LED Cinema Display (24-inch) Take Apart — General Information 44 2010-11-25
How to Remove a Broken Glass Panel
A shattered panel can be removed using safety glasses, packing tape, and leather gloves. 
1.
 P
ut on the safety glasses and leather gloves. 
2.
 La

y the computer on a smooth, clean work surface.
3. Peel protective covering off the front of the glass. Remove and discard any large pieces of broken glass.  

LED Cinema Display (24-inch) Take Apart — General Information 45 2010-11-25
4. Apply a strip of packing tape horizontally across the top and bottom of the glass panel. Next, apply the tape diagonally, across the broken glass panel, forming an “X.”
5. Continue applying tape horizontally, thoroughly covering the broken glass. Most of the glass will still be attached to the steel ring that runs around the perimeter of the glass 
panel.  

LED Cinema Display (24-inch) Take Apart — General Information 46 2010-11-25
6. Use a black stick to pry the glass panel off the magnets on the rear housing.
7. Lift the entire glass panel off the rear housing.  

LED Cinema Display (24-inch) Take Apart — General Information 47 2010-11-25
8. Place the broken glass inside a large box, label the box, and dispose of it properly. 
9. Using a whisk broom, clean the work surface of tiny glass particles.
10.
 S
tand the iMac up and use a lint free cloth to carefully brush any of the particles off the 
iMac onto the table. Clean the work surface again.
11.
 W

hen the repair is finished the cloth should be disposed of immediately.
12.
 U

se a broom and dustpan to sweep...

LED Cinema Display (24-inch) Take Apart — General Information 48 2010-11-25
Safety
Warning: HIGH VOLTAGE: The AC/DC power supply board and logic board remain powered 
up whenever the system is plugged in. Use extreme caution when troubleshooting system 
with glass panel and LCD panel removed.  •
 
D
 on’t work alone. In the event of electrical shock it is important to have another 
individual present who can provide assistance. 
•
 
K
 eep one hand in your pocket when working on any unit that is plugged...

LED Cinema Display (24-inch) Take Apart — Glass Panel 49 2010-11-25
First Steps
• Unplug all cables and the power cord.
•
 
P
 ut on ESD strap.
Caution: The glass panel 
is not tempered and will 
break into sharp pieces if 
mishandled.  A scratched 
or broken glass panel is 
not covered by warranty. 
Important:  
This procedure requires 
special tools, which are 
offered individually or as 
part of a cleaning kit.  See 
General Take Apart section 
for more information.
Tools
• ESD wrist strap
•  
lin...

LED Cinema Display (24-inch) Take Apart — Glass Panel 50 2010-11-25
Removal
Note: Glass panel is held 
in place by magnets.
Note: There are guide pins 
on back of glass panel. 
Be careful not to bend or 
break guide pins during 
removal or installation. 
If any pins are missing, 
check for loose metal 
pieces inside unit and 
replace glass panel.
Apple strongly 
recommends wearing 
clean, lint-free gloves 
whenever handling the 
glass panel, to reduce 
cleaning required on 
reassembly.
1 Lay display on...