4 Replacement Procedures

4.15 System Board/DC-IN Jack/RTC Battery

3.Remove the LAN harness and Modem harness from the base assembly.

4.Remove the following screws securing the system board.

• M2.5x4B THIN BIND screw

x2

5.[Parallel port board model or Serial port board model] Disconnect the parallel port cable or serial port cable from the connector CN3502 on the system board.

6.[S-VIdeo board model] Disconnect the S-Video harness from the connector CN5340 on the system board.

7.Remove the system board from the base assembly.

8.Turing over the system board, disconnect the DC-IN harness from the connector CN8800 and USB harness from the connector PJ4611 on the system board.

9.Disconnect the RTC battery cable from the connector CN9990 on the system board.

10.Peel off glass tapes and disconnect the modem harness and LAN harness.

Glass tape

CN8800

DC-IN harness

Paralle l port cable or

M2.5x4BSeria lport cable

THIN BIND

Modem harness

LAN harness

M2.5x4B

THIN BIND

RTC Battery

PJ4611S-Video harness

USB harness

CN5340

CN3502

 

Figure 4-33 Removing System board

4-48

[CONFIDENTIAL]

Satellite A50S/TECRA A3X Maintenance Manual (960-534)

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Image 270
Toshiba A3X manual Replacement Procedures System Board/DC-IN Jack/RTC Battery, Removing System board