Apple imac usb 2 0 User Manual

							
 © 2004 Apple Computer, Inc. All rights reserved.  
 
 
Service Source
iMac (USB 2.0)
 
                                                                        \
       Updated 6 July 2005     
						

							
   - 
 
1
 
 iMac (USB 2.0) 
						

							
 © 2004 Apple Computer, Inc. All rights reserved.  
 
 
Service Source
Basics
 
                  iMac (USB 2.0) 
						

							
 iMac (USB 2.0) Basics - 
 
1
 
 Overview 
Overview
  The iMac (USB 2.0) computers are powered by the PowerPC G4 processors. Three 
models are available: the 20-inch widescreen LCD (1.25 GHZ), the 17-inch widescreen 
LCD (1.25 GHZ), and the 15-inch LCD flat screen (1 GHz). The computer also includes 
80GB hard drives, 256MB DDR333 SDRAM, two FireWire 400 ports and three USB 2.0 
ports
 
. 
How to identify these models
 
Verify the processor speed. If the system is up and running, select “About this Mac” under 
the Apple icon in the Finder. Or, select the “More Info” button on the “About this Mac” 
window. Apple System Profiler opens and displays the machine speed under “Hardware 
Overview.” The 15-inch iMac has a 1GHz PowerPC G4 processor and the 20-inch and 17-
inch iMac have a 1.25GHz PowerPC G4 processor. In addition, identify these models by 
their serial number. 
						

							
 
2 -   
iMac (USB 2.0) Basics  What’s New 
What’s New
 
New Features, November 2003
 
The new 20-inch iMac (USB 2.0) has:
• a built-in 20-inch widescreen flat-panel
• a PowerPC G4 with a clock speed of 1.25 GHz
• NVidia GeForce FX5200 Ultra graphics acceleration
• SuperDrive 
New Service Parts for the 20-inch iMac (USB 2.0)
 
• Rear Housing, 922-6138
• Rear Housing screws, 922-6219
• Inverter 922-6129
• Inverter screws, 922-6218
• LCD Display Panel, 20-inch, 661-2991
• WIre Deflector, 922-6213
• Display Bezel 922-6128
• Display Bezel screws, 922-6289
• Neck Extension, 661-2990
• Chassis, Faraday, 922-6204
• Power Supply, 661-3104
• Drive Carrier, 922-6216
• Hard Drive, 80 GB, 661-3106
• Hard Drive, 160 GB, 661-3107 (CTO only)
• SuperDrive, 661-3108
• Logic Board, 1.25 GHz, 661-2989
• Bottom Housing, 922-6288
• Fan, 922-6215
• Insulators: Rear: 922-6217; Front: 922-6214
• SDRAM, 256 MB, DDR333, SODIMM, 661-3147
• SDRAM, 256 MB, DDR333, 184-pin, 661-3145
• SDRAM, 512 MB, DDR333, 184-pin, 661-3146 
						

							
 iMac (USB 2.0) Basics - 
 
3
 
 What’s New 
Standard Configurations 
  Features 15-inch 17-inch 20-inch 
CPU and speed  
1GHz PowerPC G4 1.25GHz PowerPC G4 1.25GHz PowerPC G4
 
System bus 
speed   
167 MHz 167 MHz 167 MHz
 
Main memory  
256 MB, 333 MHz 
DDR SDRAM, 
expandable up to 1 
GB 256 MB, 333 MHz 
DDR SDRAM, expand-
able up to 1 GB
256 MB, 333 MHz 
DDR SDRAM, expand-
able up to 1 GB
 
Display  
15-inch flat panel 17-inch, wide-screen  flat panel 20-inch, wide-screen 
flat panel
 
Graphics IC  
NVIDIA GeForceMX NVIDIA GeForce FX  5200 Ultra NVIDIA GeForce FX 
5200 Ultra
 
Graphics mem-
ory  
32 MB DDR RAM 64 MB DDR RAM 64 MB DDR RAM
 
Hard disk drive  
80 GB Ultra ATA-66 
7200 rpm 80 GB Ultra ATA-66 
7200 rpm 80 GB Ultra ATA-66 
7200 rpm
 
Optical drive  
Tray-load Combo 
drive Tray-load SuperDrive Tray-load SuperDrive
 
Power Supply  
160 W 160 W 190 W
 
External moni-
tor adapter  
Mini-VGA or S-
video/composite Mini-VGA or S-video/
composite Mini-VGA or S-video/
composite
 
Communication 
features  
10/100 Ethernet; 
56K V.92 fax modem 10/100 Ethernet; 56K 
V.92 fax modem 10/100 Ethernet; 56K 
V.92 fax modem
 
Wireless fea-
tures  
Optional 54 Mbps 
AirPort Extreme 
Card; optional inter-
nal Bluetooth Optional 54 Mbps Air-
Port Extreme Card; 
optional internal Blue-
tooth Optional 54 Mbps Air-
Port Extreme Card; 
optional internal Blue-
tooth 
						

							
 
4 -   
iMac (USB 2.0) Basics  Serial Number Location 
Serial Number Location
 
To identify a particular model of iMac (USB 2.0), check the computer’s serial number, 
which lists the model’s configuration. The serial number is located on the bottom of the 
computer, on the metal access plate, or on the inside of the optical drive door (bottom 
photo). 
						

							
 iMac (USB 2.0) Basics - 
 
5
 
 Serial Number Location 
						

							
 © 2004 Apple Computer, Inc. All rights reserved.  
 
 
Service Source
Take Apart
 
iMac (USB 2.0) 
						

							
  iMac (USB 2.0)  Take Apart - 
 
1
 
 General Information 
General Information
 
Overview: November 2003
 
This Take Apart chapter includes take apart procedures for the 15-inch, the 17-inch, and 
the 20-inch iMac (USB 2.0) computers. New procedures for the 20-inch iMac (USB 2.0) 
are listed below.  
New Procedures
 
The following Take Apart sections were updated: 
• 20-inch model: Display panel, inverter, back cover, and the neck assembl\
y
• Replacement instructions to add copper tape on the inside of the Faraday\
 cage when  you replace the antenna board on any of these models.
• Replacement instructions for EMI gaskets on the 20-inch panel 
Tools
 
The following tools are recommended for the take apart procedures.
• The service stand (076-0898)
• Thermal paste (922-4757)
• 
Torque driver, 17" LB (076-0899) 
• 1.5 mm hex driver (for LCD bezel screws)
•  #0 Phillips screwdriver)
• Torx screwdriver set (6, 8, 10, 15)
• Plastic flatblade screwdriver or stylus (922-5065)
• Needlenose pliers
• ESD wriststrap and mat