Apple powerbook firewire User Manual

							 
Microprocessor Board and Heat Exchanger Take Apart 
PowerBook (FireWire)
112 . Remove the long 
Phillips screw from 
the bottom left side of 
the heat exchanger. 
Important: 
 Do not remove 
the two screws holding the 
heat exchanger to the 
microprocessor board 
unless you are replacing 
the microprocessor board.
3. Pull up on the tab on 
the right side of the 
board to release it 
from its connector. The 
connector is along the 
bottom, right side of 
the board. 
						

							 
Microprocessor Board and Heat Exchanger Take Apart 
PowerBook (FireWire)
124. Lift up on the bottom, 
left corner of the heat 
exchanger and lift it up 
with the 
microprocessor board.
5. Pull the board to the 
right until the tabs on 
the left side of the 
board clear the slots in 
the stiffener. 
Warning: 
 Do not flex these 
pieces or you could break 
the heatpipe or the plastic 
frame around the 
microprocessor. 
						

							 
Microprocessor Board and Heat Exchanger Take Apart 
PowerBook (FireWire)
13 
Heat Exchanger 
Replacement 
1 . Remove the two 
Phillips screws from 
the heat exchanger and 
separate it from the 
microprocessor board.
2 . Use a razor blade to 
carefully scrape the 
black thermal transfer 
pad off the bottom of 
the heat exchanger and 
the top of the 
microprocessor chip.
3. Place a new thermal 
transfer pad on the 
heat exchanger.
4. Replace the plastic 
frame around the 
microprocessor chip if 
it has been removed.
5 . Replace the two screws 
on the heat exchanger. 
						

							 
Microprocessor Board and Heat Exchanger Take Apart 
PowerBook (FireWire)
14 
Microprocessor Board and 
Heat Exchanger 
Replacement  
1. Tilt the left side of the 
board down slightly to 
engage the two tabs in 
the slots in the 
stiffener. 
2. Make sure the hard 
drive tab is not caught 
under the 
microprocessor board 
when you replace the 
board. 
3. Press twice on the 
microprocessor board 
to make sure it is 
firmly seated. 
						

							 
SDRAM Take Apart 
PowerBook (FireWire)
15 
SDRAM 
Before you begin, remove 
the following:
¥ AC adapter
¥ expansion bay modules
¥ keyboard
¥ microprocessor EMI 
shield
¥ microprocessor board
There are two expansion 
slots for RAM modules on 
the microprocessor board. 
The factory-installed RAM 
is on the underside of the 
microprocessor board.
1. Pull the snaps on 
either side of the RAM 
card to the sides. The 
card will tilt up.
2. Pull the RAM card out. 
Replacement Note: 
 Hold 
the RAM card at a 30-
degree angle and line up 
the notch in the RAM card 
with the small plastic tab 
in the RAM expansion slot. 
Push in on the card and 
then down until the two 
snaps click into place. 
						

							 
Modem Take Apart 
PowerBook (FireWire)
16 
Modem 
Before you begin, remove 
the following:
¥ AC adapter
¥ expansion bay modules
¥ keyboard
¥ microprocessor EMI 
shield
¥ microprocessor board
1. If no AirPort Card is 
installed, remove the 
antenna cable 
connector from the 
antenna cable holder on 
the right side of the 
modem.
2. Remove the T-8 screw 
on the right side of the 
modem and lift off the 
antenna cable holder. 
						

							 
Modem Take Apart 
PowerBook (FireWire)
173. Use a flat-blade nylon 
tool to lift up the top, 
left side of the modem 
and release it from its 
connector.
4 . Disconnect the modem 
EMI filter cable on the 
right side of the modem. 
Replacement Note: 
 Do not 
replace the long screw on the 
bottom left of the modem. 
This long screw passes 
through the heat exchanger 
and then the modem. If you 
replace the screw at this 
stage, you will damage the 
bottom case. 
Replacement Note: 
 After 
replacing an international 
modem, use the Modem 
Country Selector utility to 
set the modem to the 
correct country. 
						

							 
Hard Drive Take Apart 
PowerBook (FireWire)
18 
Hard Drive 
Before you begin, remove 
the following:
¥ AC adapter
¥ expansion bay modules
¥ keyboard
¥ microprocessor EMI 
shield
¥ microprocessor board
1 . Use a nylon tool to 
disconnect the hard 
drive cable from the  
I/O logic board. 
						

							 
Hard Drive Take Apart 
PowerBook (FireWire)
192. Pull up on the tab until 
the hard drive lifts up, 
then pull the hard 
drive out of its bay.
3. Remove the four T-8 
screws at each black 
grommet.
4. Pull the hard drive 
away from the bracket 
and pull the hard drive 
cable through the slot 
in the bracket.
5 . Loosen both sides of the 
hard drive connector 
with a nylon tool 
before pulling up on 
the hard drive cable. 
Important: 
 Bent pins in the 
hard drive cable may affect 
the performance of the 
hard drive. 
						

							 
Hard Drive Take Apart 
PowerBook (FireWire)
20 
Hard Drive 
Replacement 
1. Place the hard drive in 
the hard drive bracket 
with the label showing 
through the open side.
2. Route the hard drive 
cable through the slot 
in the bracket on the 
component side of the 
hard drive before 
replacing the four 
screws. 
Warning: 
 The hard drive 
cable is not keyed. If you 
troubleshoot or format a 
hard drive outside the 
unit, make sure the cable 
is inserted into the 
connector on the I/O logic 
board correctly. Serious 
damage could result to both 
the hard drive and the 
computer if the cable is 
connected improperly.