Apple macbook pro 17 inch early 2008 User Manual

							 Service Source
© 2008 Apple Inc. All rights reserved.
Adjustments
MacBook Pro 17-inch  
(original, Core 2 Duo, 2.4 GHz,  Late 2007 CTO, Early 2008,   
and Late 2008 ) 
						

							MacBook Pro 17-inch (original, Core 2 Duo, 2.4/2.6GHz, 2008) Adjustments — Display Latch 15 2
Latch Adjustment
Overview
To secure the display to the top case, the MacBook Pro uses a latch assembly that consists of two 
parts—a latch mechanism under the top case (actually attached to the bottom case frame) and 
two swinging latch hooks inside the display assembly clamshell. As the unit is closed, magnets 
inside the latch mechanism pull the metal latch hooks down into the bottom case, and an 
overhang on the latch mechanism clasps the hooks to the frame.
If the display does not properly latch to the top case, fails to remain closed, or pops up without 
the display release button being pushed, you can make adjustments to the latch hooks that may 
correct the issue. Alternately, you can send the computer to an Apple Repair Center for service. 
Tools
This procedure requires the following tools:Black stick (or other non-marring nylon or plastic pointed tool)
• 
Magnet
• 
Preliminary Steps
Warning: While performing the following procedures, take note of the position of the hooks 
as they are drawn out of the display housing and down into the slots in the top case. Any 
adjustments to these hooks must be very slight to stay within the slot on the top case.
Before performing the latch adjustment, test the current operation of the latches:
Push the display down to about two inches from the top case. Then push the display very 
1.  
slowly until it just touches the top case, and immediately release.
If working properly, the latches should secure the display to the top case throughout the 
following tests: Pounding firmly on the table top, to the left and right of the computer.
• 
Pulling up on the sides of the display.
• 
Repeat the above procedures several times to verify proper operation of the latches.
Whether or not the latches functioned properly during testing, use the following procedures 
2.  
to achieve or to verify proper latching function. 
						

							MacBook Pro 17-inch (original, Core 2 Duo, 2.4/2.6GHz, 2008) Adjustments — Display Latch 15 3
Procedure
Note: The latch mechanism under the top case of the computer has a small amount of right and 
left play (less than 1 mm), and can shift during normal operation.
The following procedures will test the latching function with the latch mechanism at its 
maximum right and left positions, and the latch hooks will be very slightly adjusted, as necessary.
Important: The latch hook metal can become brittle and break if it is bent too much, especially 
if it is over-bent and bent back. Work carefully and with due restraint to avoid over-bending the 
latch hook. If the latch hook breaks, new latch hooks will need to be ordered and replaced.Open the display and note the edges of the latch mechanism underneath the top case, 
1.  
shown below, just to the right and left of the latch release button. This mechanism catches 
both left and right latch hooks on the display assembly.
Use a black stick to push the latch mechanism, at the location shown below, to move it to 
2.  
the left as needed (less than 1 mm) or its corresponding location on the left side of the latch 
release button to move it right (less than 1 mm). 
						

							MacBook Pro 17-inch (original, Core 2 Duo, 2.4/2.6GHz, 2008) Adjustments — Display Latch 15 4
Perform the testing procedures in step 1 of the Preliminary Steps, above.
3. 
If the latch functions properly, skip to step 6; otherwise, if either or both latch hooks require 
4.  
an adjustment, refer to the following steps.
If the latch mechanism does not function properly, adjust the latch hook(s) as follows:
5. 
Open the display to a 90-degree angle and use a magnet to draw the latch hook out. Tightly 
grasp it between your thumb and forefinger as close to the display as possible, as shown.
Carefully exert a very slight controlled downward pressure on the latch hook.
Important: Do not push only with your thumb. Hold the latch hook tightly between your 
thumb and forefinger to support the latch hook and prevent too much bending force.
Release the latch hook, adjust the other latch hook as needed, and perform the latch tests as 
6.  
before. Continue the above procedure until both latches function properly.
Again, if needed, use a black stick to push on the latch mechanism, as shown below, to adjust 
7.  
it slightly left or right (no more than 1 mm) or to re-center the mechanism over the latch 
release button.
Repeat the previous latch closing tests, and latch hook adjustment if needed, until the latch 
8.  
works properly in this position. 
						

							 Service Source
© 2008 Apple Inc. All rights reserved.
Troubleshooting
MacBook Pro 17-inch  
(original, Core 2 Duo, 2.4 GHz,  Late 2007 CTO, Early 2008,   
and Late 2008 ) 
						

							MacBook Pro 17-inch (original, Core 2 Duo, 2.4/2.6GHz, 2008) Troubleshooting — General Information 15 6
General Information
Wire and Flex Cables
Because of its extremely thin enclosure design and dispersed circuit board, the MacBook Pro 
utilizes a large number of flex cables and variety of wire cable harnesses. Many of these cables 
carry multiple types of signals.
Here is a list of the cables and the signals that run across them. If you notice a group of functions 
not working, it is likely that the cable is not properly inserted or the connector is damaged.
Cable or Flex CableSignal(s) Running Through It
SuperDrive flex SuperDrive data, power, and control signals 
(cable select info)
Hard drive flex Hard drive power and data 
Bluetooth power and data
Left I/O board flex Audio in and out 
left USB (2 ports) 
ExpressCard data, left ALS, AirPort
Power Button cable Power-on signal
Infrared Cable Infrared Power and data
Sleep LED cable Power to sleep LED
Main battery connector wire harness Battery power to main logic board
Speaker Assembly cable (left) Left speakers (2) audio
Speaker Assembly cable (right) Right speakers (2) audio
Internal microphone Internal microphone audio
Trackpad flex Trackpad data and power 
Power on button 
Keyboard backlight power 
Sleep sense signal 
Keyboard data
Bluetooth antenna cable assembly Bluetooth radio signal
AirPort Extreme antenna cable AirPort Radio signal
Left fan cable Power/control for left fan
Right fan cable Power/control for right fan
Display backlight cable (to logic board) Display backlight control 
Inverter control signal (brightness)
iSight video signal cable Video power and signal from iSight camera
LVDS cable Video data
Thermal sensors (bottom case (2), heatsink) Internal temperature data 
						

							MacBook Pro 17-inch (original, Core 2 Duo, 2.4/2.6GHz, 2008) Troubleshooting — General Information 15 7
Microphone and Camera wires
The following photo shows the microphone wires located on the left speaker, and the camera 
connector located on the logic board.
Hardware Diagnostics
AppleCare offers two diagnostics for the MacBook Pro. Apple Hardware Test (AHT ) is shipped 
with every machine and targeted for end-users to troubleshoot their machine. Apple Service 
Diagnostics (ASD) is offered to Service Providers for more in-depth troubleshooting.
Both applications are available for download from Kbase article 112125: Service Diagnostics Matrix. 
Apple Hardware Test (AHT) 
Apple Hardware Test (AHT ) 3A105 for MacBook Pro (17-inch)
• 
Apple Hardware Test (AHT ) 3A115 for MacBook Pro (17-inch Core 2 Duo)
• 
Apple Hardware Test (AHT ) 3A122 for MacBook Pro (17-inch 2.4GHz)
• 
Apple Hardware Test (AHT ) 3A135 for MacBook Pro (17-inch Early 2008)
• 
Note: AHT version numbers may change as diagnostics are updated.
To use Apple Hardware Test on the hard drive (MacBook Pro (17-inch Early 2008) only):
Disconnect all external devices from the computer except the power adapter.
1.  
Restart the computer while holding down the D key. (Apple Hardware Test resides on its own 
2.   
						

							MacBook Pro 17-inch (original, Core 2 Duo, 2.4/2.6GHz, 2008) Troubleshooting — General Information 15 8
partition on the internal hard drive.)
When the AHT chooser screen appears, select the language for your location.
3. 
Press the 
4.   Return key or click the right arrow button.
When the Apple Hardware Test main screen appears (after about 45 seconds), follow the on-
5. 
screen instructions.
If Apple Hardware Test detects an issue, it displays an error code. Make a note of the error 
6.  
code before pursuing support options. If Apple Hardware Test doesn’t detect a hardware 
issue, the issue may be software related.
If this method is not successful, use AHT from the MacBook Pro OS X Install DVD..
To use AHT from the DVD: Insert the DVD named “MacBook Pro Mac OS X Install Disc 1” that came with your computer.
1.  
Hold down “D” and restart the computer.
2.  
Follow the on-screen instructions.
3. 
Apple Service Diagnostic (ASD) 
Apple Service Diagnostic (ASD) 3S108 for MacBook Pro (17-inch)
• 
Apple Service Diagnostic (ASD) 3S109 for MacBook Pro (17-inch Core 2 Duo) 
• 
Apple Service Diagnostic (ASD) 3S114 for MacBook Pro (17-inch 2.4GHz)
• 
Apple Service Diagnostic (ASD) 3A121 for MacBook Pro (17-inch Early 2008)*
• 
Notes: 
ASD version numbers may change as diagnostics are updated.
• 
Some older diagnostics are not on the 3S109 disk. Please keep a copy of the 3S108 disk.
• 
*Important: ASD 3S121 requires installation onto an external USB hard drive. See section below.
Installing Apple Service Diagnostic on a USB hard drive:
Connect the external USB hard drive to your Macintosh. 
1.  
Open Disk Utility (located in /Applications/Utilities). 
2.  
Select the external USB hard drive. 
3. 
Click the Partition tab to prepare the drive to be partitioned into two volumes, as follows: 
4.  
For ASD (OS), the partition size must be 5.4GB or larger. Name this volume ASD OS 3S121. 
 
-
For ASD (EFI), the partition size must be 20MB or larger. Name this volume ASD EFI 3S121. 
 
-
Click on Options and select GUID Partition Table as the partition scheme. 
5. 
Click Partition to partition the hard drive. 
6.  
In the Finder, double-click on the ASD 3S121.dmg file to mount the image. Within it are two 
7.  
disk images, one for EFI, ASD EFI 3S121.dmg, and one for OS X, ASD OS 3S121.dmg volume.  
						

							MacBook Pro 17-inch (original, Core 2 Duo, 2.4/2.6GHz, 2008) Troubleshooting — General Information 15 9
In Disk Utility, select the volume on the USB hard drive named “ASD OS 3S121.”
8.  
Click on the Restore tab.
9. 
For Source, select the ASD OS 3S121 disk image by either dragging the icon for the disk 
10.  
image to the Source window, or selecting it by clicking on the Image... button. 
Note: Image ASD OS 3S121.dmg should be unmounted before restoring it to the hard drive. 
For Destination, drag the icon for the volume ASD OS 3S121 from the left-hand column to 
11 .  
the Destination window. 
Click the Restore button to start the installation. 
12.  
In Disk Utility, select the volume on the USB hard drive named ASD EFI 3S121. 
13 .  
Click on the Restore tab 
14.  
For Source, select the ASD EFI disk image by either dragging the icon for the disk image to 
15 .  
the Source window, or selecting it by clicking on the Image button. 
Note: Image ASD EFI 3S1121.dmg should be unmounted before restoring it to the hard drive. 
For Destination, drag the icon for the volume ASD EFI 3S121 from the left-hand column to 
16.  
the Destination window. 
Click the Restore button to start the installation. 
17.  
Troubleshooting Aids and Tips
Power Button pads on logic board
With the top case removed, the power button is disconnected. Instead of having to reconnect the 
top case to turn on the system, there are two pads on the logic board that can be shorted across 
(with a tool like a flat blade screwdriver) to act as the power button.
These pads are located near the left side of the LVDS cable connector on the logic board. It is 
marked PWR BTN. The pads are separated with a vertical white line. 
						

							MacBook Pro 17-inch (original, Core 2 Duo, 2.4/2.6GHz, 2008) Troubleshooting — General Information 16 0
Resetting the System Management Controller (SMC)
Power management is now handled by a chip called SMC (System Management Controller). 
Previously, it was handled by the Power Management Unit (PMU). To reset the SMC:If the computer is on, turn it off.
1.  
Disconnect the power adapter and remove the main battery.
2.  
Hold the power button down for five seconds, then release.
3. 
Install the main battery and connect the power adapter.
4.  
Press the power button to restart the computer.
5. 
Display off and sleep indicator light on
When the system is running but the video is not illuminated (for example, briefly upon startup, 
or when energy saver dims the video while the system is still awake), the sleep indicator light 
remains on. This feedback is to alert the user that the system is not shut down. It is possible, 
however, that this signal may fail if the system has crashed. As such, you can use the next test to 
see if power is present in an apparently “off” system. 
System powered test using Caps Lock LED
There are situations when the system is giving indications that it is shut down (no sleep light, no 
hard drive access, screen is dark, no fan, and so on); however, the logic board may still be active. 
In this case, the logic board is drawing power and generating heat.
Warning: In this situation, if the computer is placed in an enclosed environment like a 
carrying bag, the computer can overheat.
You can potentially verify this situation by pressing the Caps Lock key. If the LED glows, the 
power manager is actively running on the logic board. If pressing the Caps Lock key or other 
attempts to wake the machine have failed (including closing the lid to put it to sleep and 
reopening it to wake it), hold the power button down for six seconds to force a shutdown of the 
computer. Restart the system to check that it starts up normally.
Note: Given that the keyboard in MacBook Pro is a USB device, it may not respond if the 
operating system has crashed. Thus, despite the fact that the caps lock LED does not light up, the 
computer may still be drawing power. If in doubt, hold the power button down for six seconds to 
force a shutdown of the computer.