Apple imac 21 5 inch late 2009 User Manual

							iMac (21.5-inch, Late 2009) Take Apart — Camera 121 2010-11-18
Removal
1 
Remove T10 screws: 
(2) 922-9239
2 Lift camera out of rear 
housing.
3 Disconnect cable from 
camera.  
						

							iMac (21.5-inch, Late 2009) Take Apart — Camera 122 2010-11-18
Reassembly
1 
Thermal paste is 
required between 
camera and rear 
housing. Reuse the 
thermal paste.
2 Use a black stick to 
remove and reapply 
thermal paste to 
camera (areas circled). 
 
Note: A syringe of 
thermal paste is 
available as needed, 
Apple part# 922- 
9625, good for 5 
applications.  
 
Important: The white 
thermal paste used 
on camera should 
NOT be used for any 
other purpose (such 
as portable computer 
heatsinks).  
						

							iMac (21.5-inch, Late 2009) Take Apart — LCD Panel 123 2010-11-18
First Steps
Remove:
• Glass Panel
Caution: Do not press on 
front surface of LCD panel 
when handling.
Tools
• ESD wrist strap
•  Torx T10 screwdriver
•  ESD bag to store LCD 
panel
LCD Panel  
						

							iMac (21.5-inch, Late 2009) Take Apart — LCD Panel 124 2010-11-18
Removal
1 
Remove T10 screws: 
(8) 922-9246
Reassembly Note:  
Do not overtighten LCD 
screws, which could cause 
light leakage after unit is 
reassembled.
2 With computer  standing up and facing 
you, pull the LCD 
forward slightly from 
the top edge to access 
cables inside.
Caution: Tilt display out 
no more than 4 inches 
(10 cm).  Pulling display 
too far could damage 
cables or connectors.  
						

							iMac (21.5-inch, Late 2009) Take Apart — LCD Panel 125 2010-11-18
3 Looking down into 
computer, disconnect 4 
cables:
•  #1: vertical sync
•  #2: backlight power
•  #3: display temp sensor
•  #4: LVDS
Reassembly Note:  
Verify that all cables 
are firmly seated into 
connectors!
LEFT: Close-up of #1 
vertical sync cable (922-
9142) at top of LED 
backlight board. Pull 
straight out of connector.
RIGHT: Close-up of #3 
display temp sensor cable 
(922-9141) at top center of 
logic board. Pull straight 
up.
LEFT: Close-up of #2 
backlight power cable at 
bottom of LED backlight 
board. Pinch and pull cable 
down from connector.
RIGHT: Close-up of #4 
LVDS cable (922-9132) at 
top center of logic board. 
Squeeze side tabs to 
release and pull up from 
connector.  
						

							iMac (21.5-inch, Late 2009) Take Apart — LCD Panel 126 2010-11-18
4 Lift LCD panel off rear 
housing. 
 
Important:
•  Handle panel by 
edges only 
•  Use two hands to lift 
and move the panel 
•  Never hold panel with 
only one hand 
•  Don’t touch the panel 
surface
Replacement Note: 
If installing a new LCD 
panel, disconnect LVDS 
cable and vertical sync 
cable and transfer to new 
panel.  Secure with black 
mylar tape included with 
new LCD panel.  
 
A replacement LCD panel 
includes:
•  display temp sensor 
cable & retaining clip
•  backlight power cable
•  mylar tape  
						

							iMac (21.5-inch, Late 2009) Take Apart — LCD Panel 127 2010-11-18
Handling LCD 
Panel
1 
Important: Handle 
LCD panel by edges 
only. 
 
Use two hands to carry 
the panel.
 
2 Never touch LCD 
surface or hold LCD 
panel with one hand. It 
could damage the LCD 
panel.  
						

							iMac (21.5-inch, Late 2009) Take Apart — LCD Panel 128 2010-11-18
3 To prevent buildup of 
static charges which 
may attract dust 
particles to the surface 
of the display, store 
LCD panel in an anti-
static bag whenever 
it has been removed 
from computer.  
						

							iMac (21.5-inch, Late 2009) Take Apart — Vertical Sync Cable 129 2010-11-18
First Steps
Remove:
• Glass Panel
•  LCD Panel
Removal
1 
Peel back any black 
mylar securing cable 
to LCD panel.
2 Pull cable straight out 
of connector.
Reassembly Note:
Insert cable securely into 
connector and replace all 
mylar tape.
Vertical Sync Cable  
						

							iMac (21.5-inch, Late 2009) Take Apart — LCD Temp Sensor Cable 130 2010-11-18
First Steps
Remove:
• Glass Panel
•  LCD Panel
Removal
1 
Peel back black 
insulator to access 
entire cable.
2 Disconnect cable 
from bracket.
LCD Temp Sensor Cable