Toshiba PORTEGE R300 - System Board

4.21 System board 4 Replacement Procedures
4.21 System board
Removing the System board
To remove the system board, follow the steps below and refer to Figure 4-32 and Figure 4-33.
1. Remove the following screw of RGB connector.
• STUD ×2
STUD
Figure 4-32 Removing the System board (1)
2. Disconnect the fan cable to the connector CN8781 on the system board.
3. Pell the insulator and disconnect the MDC cable to the connector MDC module.
4. Disconnect the RTC cable to the connector CN9300 on the system board.
5. Take off the DC-IN jack / USB connector / LAN connector / RGB connector from
the slot and remove the system board to the base assembly.
System board
CN8781
MDC cable
CN9300
Insulator
RTC cable
RGB connector
USB jack
LAN jack
DC-IN jack
Fan cable
MDC module connector
Figure 4-33 Removing the System board (2)
PORTÉGÉ R300 Maintenance Manual (960-591) [CONFIDENTIAL] 4-41
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