Apple imac 17 inch User Manual
Have a look at the manual Apple imac 17 inch User Manual online for free. It’s possible to download the document as PDF or print. UserManuals.tech offer 195 Apple manuals and user’s guides for free. Share the user manual or guide on Facebook, Twitter or Google+.
![Page 26
Procedure
1. Using a flatblade screwdriver, gently pry the battery from the battery holder.
Warning: Whenever the bottom housing is opened for service, you must do two things:
1. You must clean the original thermal film from the surfaces joining the \
thermal
interface layer and reapply thermal paste to the thermal pipe.
2.You must tighten the four torx screws on the bottom housing to a minim\
um of 17
in.-lbs. If you do not have a torque driver, you will have to make sure \
these
screws are...](http://img.usermanuals.tech/thumb/462/38776/w64_imac-17-inch-1ghz-25.png "Page 26
Procedure
1. Using a flatblade screwdriver, gently pry the battery from the battery holder.
Warning: Whenever the bottom housing is opened for service, you must do two things:
1. You must clean the original thermal film from the surfaces joining the \
thermal
interface layer and reapply thermal paste to the thermal pipe.
2.You must tighten the four torx screws on the bottom housing to a minim\
um of 17
in.-lbs. If you do not have a torque driver, you will have to make sure \
these
screws are...")
![Page 29
2. Grab the logic board by the battery retainer and the hard drive connector. Lift the
board and pull back to release the board from the bottom housing and I/O ports. Note:
The I/O port covers may come out with the logic board when it’s removed.
3. Remove the I/O port covers from the logic board.
Warning: Whenever the bottom housing is opened for service, you must do two things:
1.You must clean the original thermal film from the surfaces joining the\
thermal
interface layer and reapply thermal...](http://img.usermanuals.tech/thumb/462/38776/w64_imac-17-inch-1ghz-28.png "Page 29
2. Grab the logic board by the battery retainer and the hard drive connector. Lift the
board and pull back to release the board from the bottom housing and I/O ports. Note:
The I/O port covers may come out with the logic board when it’s removed.
3. Remove the I/O port covers from the logic board.
Warning: Whenever the bottom housing is opened for service, you must do two things:
1.You must clean the original thermal film from the surfaces joining the\
thermal
interface layer and reapply thermal...")
![Page 30
is separated from the bottom housing could cause these parts to overheat. Short term
separation, where the thermal pads are not handled excessively
(an exception would be
if you are simply testing the logic board and only detach it for a few m\
inutes)
,
does not require replacement. Refer to “Thermal Pad Installation” in this chapter for
detailed information.
Important: Diagnostic service cables allow the unit to run while the bottom housing is
open (as shown above). However, the computer...](http://img.usermanuals.tech/thumb/462/38776/w64_imac-17-inch-1ghz-29.png "Page 30
is separated from the bottom housing could cause these parts to overheat. Short term
separation, where the thermal pads are not handled excessively
(an exception would be
if you are simply testing the logic board and only detach it for a few m\
inutes)
,
does not require replacement. Refer to “Thermal Pad Installation” in this chapter for
detailed information.
Important: Diagnostic service cables allow the unit to run while the bottom housing is
open (as shown above). However, the computer...")
![Page 32
Procedure
1. Gently remove the I/O port covers from the logic board.
Warning: Whenever the bottom housing is opened for service, you must do two things:
1.You must clean the original thermal film from the surfaces joining the\
thermal
interface layer and reapply thermal paste to the thermal pipe.
2. You must tighten the four torx screws on the bottom housing to a minimu\
m of 17
in.-lbs. If you do not have a torque driver, you will have to make sure \
these
screws are tightened by hand FIRMLY,...](http://img.usermanuals.tech/thumb/462/38776/w64_imac-17-inch-1ghz-31.png "Page 32
Procedure
1. Gently remove the I/O port covers from the logic board.
Warning: Whenever the bottom housing is opened for service, you must do two things:
1.You must clean the original thermal film from the surfaces joining the\
thermal
interface layer and reapply thermal paste to the thermal pipe.
2. You must tighten the four torx screws on the bottom housing to a minimu\
m of 17
in.-lbs. If you do not have a torque driver, you will have to make sure \
these
screws are tightened by hand FIRMLY,...")
![Page 33
Thermal Pad Installation
Tools
• No tools are required.
• Thermal pad kit
Part Location
Warning: Whenever the logic board is removed, you must install new thermal pads to
three surfaces (shown above). Failure to apply these pads could cause the computer to
overheat and possibly damage the internal components. Note:
An exception would be if
you are simply testing the logic board and only detach it for a few minu\
tes
.
30 iMac (Flat Panel) Take Apart
Thermal Pad Installation](http://img.usermanuals.tech/thumb/462/38776/w64_imac-17-inch-1ghz-32.png "Page 33
Thermal Pad Installation
Tools
• No tools are required.
• Thermal pad kit
Part Location
Warning: Whenever the logic board is removed, you must install new thermal pads to
three surfaces (shown above). Failure to apply these pads could cause the computer to
overheat and possibly damage the internal components. Note:
An exception would be if
you are simply testing the logic board and only detach it for a few minu\
tes
.
30 iMac (Flat Panel) Take Apart
Thermal Pad Installation")
I/O Port Covers Tools This procedure requires the following tools: • No tools are required Part Location Preliminary Steps Before you begin, do the following: • Position the computer in the service stand. • Remove the user access plate. • Remove the bottom housing. • Remove the RJ-11 board • Remove the logic board. 28 iMac (Flat Panel) Take Apart I/O Port Covers
Procedure 1. Gently remove the I/O port covers from the logic board. Warning: Whenever the bottom housing is opened for service, you must do two things: 1.You must clean the original thermal film from the surfaces joining the\ thermal interface layer and reapply thermal paste to the thermal pipe. 2. You must tighten the four torx screws on the bottom housing to a minimu\ m of 17 in.-lbs. If you do not have a torque driver, you will have to make sure \ these screws are tightened by hand FIRMLY, BUT NOT FORCIBLY. Or, purchase the \ service tool (076-0899) in order to ensure the thermal pipe is firmly \ mated with the top base. If the bottom housing is not securely attached \ to the base in this fashion, the CPU may overheat and become damaged. Failure to follow either of these steps could cause the computer to overheat and da\ mage internal components. Refer to the topic, “Thermal Paste Application” for detailed infor\ mation. I/O Port Covers iMac (Flat Panel) Take Apart - 29
Thermal Pad Installation Tools • No tools are required. • Thermal pad kit Part Location Warning: Whenever the logic board is removed, you must install new thermal pads to three surfaces (shown above). Failure to apply these pads could cause the computer to overheat and possibly damage the internal components. Note: An exception would be if you are simply testing the logic board and only detach it for a few minu\ tes . 30 iMac (Flat Panel) Take Apart Thermal Pad Installation
Procedure 1. Remove the old thermal pads (shown below) from the bottom housing. Note: If you don’t see all three thermal pads on the bottom housing, check the bottom side of the logic board. The thermal pads may stick to the logic board. Either way, remove the old thermal pads. 2. Using the thermal pad kit, remove the clear protective backing from the new thermal pads. 3. Place the new thermal pads on the bottom housing. Press down on the blue protective backing to make sure the thermal pad has even contact with the bottom housing. There should be no air pockets. 4. Remove the blue protective backing from the new thermal pad. Note: Avoid unnecessary contact with either side of the thermal pad as dirt and body oils reduce the thermal pad's conductivity. 5. Holding the logic board by the battery retainer and the internal drive cable connector, slide the logic board back into the bottom housing (make sure the I/O port covers are on the logic board). Important: Do not push on the heatsink for leverage, as you could knock it off the chip. Thermal Pad Installation iMac (Flat Panel) Take Apart - 31
AC Line Filter Tools This procedure requires the following tools: • Torx-10 screwdriver Part Location Preliminary Steps Before you begin, do the following: • Position the computer in the service stand. • Remove the user access plate. • Remove the bottom housing. • Remove the RJ-11 board. • Remove the logic board. 32 iMac (Flat Panel) Take Apart AC Line Filter
Procedure 1. Peel back the black insulator on the bottom housing to access the AC line filter screws. 2. Remove two screws and lift the AC line filter from the bottom housing. Note: The AC line port cover plug may fall out of the bottom housing when you remove the AC line filter. Place the plug back into the bottom housing before reinstalling the AC line filter. AC Line Filter iMac (Flat Panel) Take Apart - 33
Warning: Whenever the bottom housing is opened for service, you must do two things: 1.You must clean the original thermal film from the surfaces joining the\ thermal interface layer and reapply thermal paste to the thermal pipe. 2. You must tighten the four torx screws on the bottom housing to a minimu\ m of 17 in.-lbs. If you do not have a torque driver, you will have to make sure \ these screws are tightened by hand FIRMLY, BUT NOT FORCIBLY. Or, purchase the \ service tool (076-0899) in order to ensure the thermal pipe is firmly \ mated with the top base. If the bottom housing is not securely attached \ to the base in this fashion, the CPU may overheat and become damaged. Failure to follow either of these steps could cause the computer to overheat and da\ mage internal components. Refer to the topic, “Thermal Paste Application” for detailed infor\ mation. Warning: Whenever the logic board is separated from the bottom housing, you must install new thermal pads to three surfaces on the bottom housing. The thermal pads help cool components on the logic board. Failure to apply these pads whenever the logic board is separated from the bottom housing could cause these parts to overheat. Short term separation, where the thermal pads are not handled excessively (an exception would be if you are simply testing the logic board and only detach it for a few m\ inutes) , does not require replacement. Refer to “Thermal Pad Installation” in this chapter for detailed information. 34 iMac (Flat Panel) Take Apart AC Line Filter
Drive Carrier Assembly (Optical and Hard Drive) Tools This procedure requires the following tools: • Torx-10 screwdriver Part Location Preliminary Steps Before you begin, do the following: • Position the computer in the service stand with the door facing up. • Remove the user access plate. • Remove the bottom housing. Drive Carrier Assembly (Optical and Hard Drive) iMac (Flat Panel) Take Apart - 35
Procedure 1. Rotate the base unit so the optical drive door is facing up (as shown below). 2. Remove two screws on the EMI shield. Carefully lift the shield and peel the copper tape off the drive. 36 iMac (Flat Panel) Take Apart Drive Carrier Assembly (Optical and Hard Drive)
3. Remove four screws attaching the drive carrier to the metal chassis (also known as the Faraday cage). Drive Carrier Assembly (Optical and Hard Drive) iMac (Flat Panel) Take Apart - 37