Apple macbook pro User Manual

							MacBook Pro Troubleshooting — Hardware Symptom Charts 2 11
Video
No display, or dim display, but computer appears to operate correctly
Remove any connected peripherals.
1.  
Make sure F1 key is not stuck down.
2.  
Press the F2 key (with the fn key pressed and not pressed) to increase the screen brightness 
3. 
settings.
Reboot the computer—hold down the Control and Command keys and press the Power 
4.  
button to restart the computer. Or, press and hold the Power button for 5 to 10 seconds to 
shut down the computer, then press the Power button to restart. Let the system run for an 
hour, so the panel can warm up.
Verify inverter cable and LVDS cable connections are seated properly and that the cables are 
5. 
not damaged.
Replace inverter board.
6.  
Replace the display rear housing (which includes the inverter cable assembly, or replace 
7.  
separately if available).
Replace LCD panel.
8.  
Replace logic board.
9. 
Computer appears to work, but no video on external device connected to the S-
video/Composite port of the optional DVI to Video Adapter
The device must be connected to the S-video/composite port while the MacBook Pro is 
1.  
sleeping or off for the device to be recognized.
Verify monitor that is used in testing is known-good and is supported by this computer.
2.  
Try different DVI to Video Adapter.
3. 
Replace logic board.
4.  
No video on an external VGA device connected to the external monitor (DVI) 
port
Verify monitor that is used in testing is known-good and is supported by this computer.
1.  
Try another DVI-to-VGA adapter cable.
2.  
Restart the computer and test again.
3. 
Replace logic board.
4.  
No display, or dim display, but can display external video
Remove any connected peripherals.
1.  
Try adjusting the brightness using the F2 function key.
2.   
						

							MacBook Pro Troubleshooting — Hardware Symptom Charts 212
Open Display system preference panel and check brightness. If works, replace keyboard.
3. 
Check connection of the inverter cable to the main logic board.
4.  
Check inverter cable connection to the inverter board and the inverter to the LCD cable 
5. 
connection.
Replace inverter board.
6.  
Replace display rear housing (which includes the inverter cable assembly, or replace 
7.  
separately if available)
Replace display panel.
8.  
Replace logic board.
9. 
Display has repetitive patterns or shifted color patter
Check for the latest System software update
1.  
Check the LVDS connection is fully seated on the logic board.
2.  
Replace the logic board. 
3. 
Display has permanent vertical or horizontal lines.
Check for the latest System software update 
1.  
Replace display panel.
2.  
Replace logic board.
3. 
Misc. Symptoms
The Date and Time settings reset all the time
Note: Resetting the power manager or PRAM resets the date and time. The MacBook Pro uses a 
non-rechargeable lithium battery.
Do a backup battery test:  
1.  
• Set the date and time.  
• Perform a Shut Down from the Apple menu.  
• Remove the main battery and disconnect the power adapter for 10 minutes.  
• Connect the power adapter, insert the battery, and power on the computer.  
• If the date and time were lost the backup battery may be dead or discharged.  
• Remove the main battery from the unit and leave the PowerBook plugged in for at least 5 
hours.
Replace backup battery.
2.  
Replace the logic board.
3.  
						

							MacBook Pro Troubleshooting — Hardware Symptom Charts 213
Feet came off the bottom case
Replace the missing foot.
Sleep LED does not come on when lid is closed
Put the computer to sleep using the menu option. If the sleep LED goes on, there is a 
1.  
problem with sensing the closed display. If the LED does not go on, skip to step 3.
With the display housing removed, check the sleep magnet location on the LCD panel: (See 
2.  
the LCD Panel chapter in the Take Apart section of this manual.) 
• If it is not positioned correctly, reposition it. Polarity makes a difference.  
• If the magnet is missing, replace it with a new magnet.
Check that the sleep LED is plugged into the logic board.
3. 
Connect a USB mouse. Short the power on pads on the logic board to boot the system and 
4.  
use the mouse to sleep from the menu. Measure the voltage at the LED connector. If power 
is present, replace bottom case.
Replace logic board.
5.  
						

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Views
MacBook Pro 
						

							MacBook Pro Views — Exploded View - Body 215
Exploded View - Body
Logic Board
 1.83 GHz, 128 VRAM   661-3952
 2.0 GHz, 256 VRAM    661-3953
 2.16 GHz, 256 VRAM   661-3954
Logic Board Sleeve  922-7217
EMI Kit  076-1206
Right Fan  922-7194
Left Fan  922-7193
Left I/O Board Flex  922-7200
Speaker Assembly  922-7192
Right Ambient Light Sensor
Dust Cover  922-7216
Backup Battery  922-7190
Foot  076-1070
Memory Door  922-7209
Optical Drive Bracket, Back
922-7270
Optical Drive Bracket, Right
922-7269
Optical Drive Flex Cable
922-7267
Rubber Grommets  922-7266
Hard Drive (SATA)
  80GB, 5400  661-3853
100GB, 5400  661-3854
120GB, 5400  661-3855
100GB, 7200  661-3856
Hard Drife Holder  922-7265
Hard Drive/Bluetooth/IR Flex Cable  922-7264
Memory (SDRAM DDR2 667)  512MB  661-38661GB  661-3867
Optical Drive Bracket, Left,
 with EMI Gasket  076-1208
SuperDrive  661-3857
Battery Cable  922-7302
Bottom Case  922-7210
Battery  661-3864
Left Ambient Light Sensor  Flex Cable  922-7201
Left Ambient Light Sensor Dust Cover  922-7215
Left Ambient Light Sensor   922-7188
AirPort Extreme Card Bracket   922-7211
AirPort Extreme Card  661-3890
Left I/O Board  922-7187
Bluetooth Board  922-7189
Bluetooth Antenna  922-7301
Infrared Board  922-7195
ExpressCard Cage  922-7186
Top Case  922-7184
Keyboard  922-7183
Keyboard Insulators  076-1209
Left Thermal Sensor  922-7199
Right Thermal Sensor  922-7312
Heatsink  922-7185 
						

							MacBook Pro Views — Exploded View - Display 216
Exploded View - Display
LVDS Cable  922-7197
Inverter Board  922-7191
Clutch Cover  922-7278
Antenna Cover  922-7279
Sleep Magnet  922-7208
Display Bezel  922-7220
Display Hook, Left  922-7222
Display Hook, Right  922-7223
Antenna Assembly  922-7276
Anti-Glare Display Panel
with Rear Housing, Shims, Logo and Diffuser 661-3950
Glossy Display Panel
with Rear Housing, Shims, Logo and Diffuser 661-4015
Display Rear Housing
 with Logo and Diffuser
For Samsung Panel  922-7221 For Chi Mei Panel  922-7351
Display Panel Shims (2)
922-7229
Clutch, Right  922-7224
Clutch, Left  922-7225