Panasonic CF-74ECBGDBM Service Manual page 26

Note:
After replacing the Main Board, rewrite the BIOS ID.
1. Disconnect the ten Cables from the ten Connectors (CN6,
CN7, CN24, CN19, CN28, CN21, CN802, CN18, CN15,
CN25).
2. Remove the six Screws <N9>.
3. Remove the Main PCB.
4. Remove the MP Guide.
Screws <N9>: DFHE5025XA
9.1.11. Removing the PC Card Ejector and
Lithium Battery
Lithium Battery
(to CN14)
CN14
<N9>
1. Remove the two Screws <N9>.
2. Remove the PC Card Ejector.
3. Disconnect the Cable from the Connector (CN14).
4. Remove the Lithium Battery.
Screws <N9>: DFHE5025XA
9.1.12. Removing the DC-IN PCB and I/O
PCB
LAN Cable MODELAN
Modem Cable
DC-IN PCB
<N9>
MODELAN-2
Holder
PC Card Ejector
Main PCB
Holder
<N19>
<N9>
<N9>
I/O PCB
I/O Plate
1. Remove the two Screws <N9>.
2. Remove the DC-IN PCB.
3. Remove the two Screws <N9>.
4. Remove the four Screws <N19>, and then the I/O PCB
from the I/O Plate.
5. Remove the Modem Cable and LAN Cable from the
MODELAN Holders.
Screws <N9>: DFHE5025XA
Screws <N19>: DFHE5035ZB
9.1.13. Removing the FAN Motor and SD
PCB
Cable Holder
<N9>
SD PCB
Heat Sink
Spring
1. Remove the Cable Holder.
2. Remove the two Screws <N5>.
3. Remove the FAN Motor.
4. Remove the Heat Sink, Fan Duct, and the four Heat Sink
Springs.
5. Remove the three Screws <N9>.
6. Remove the SD PCB.
Screws <N5>: DXSB2+6FNL
Screws <N9>: DFHE5025XA
9-4
Fan Tape2
Fan Tape1
<N5>
Fan Duct
FAN Motor
Heat Sink
Heat Sink
Spring