Connector Check And Replacement Check - Toshiba Portege R200 Maintenance Manual

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2 Troubleshooting
Procedure 2

Connector Check and Replacement Check

The MDC is connected to the MP FPC and MP FPC is connected to the system board. If the
modem malfunctions, these connections may be bad or the MDC, MP FPC or system board
might be faulty.
Disassemble the computer following the steps described in Chapter 4 and perform the
following checks:
Check 1
Make sure the following connections are firmly connected.
If any connector is disconnected, connect it firmly and return to Procedure 1. If
there is still an error, perform Check 2.
Check 2
The Modem cable may be faulty. Replace it with a new one. If the modem
function is still not working properly, perform Check 3.
Check 3
The MDC harness may be faulty. Replace it with a new one following the steps
in Chapter 4. If the modem function is still not working properly, perform Check
4.
Check 4
The MDC may be faulty. Replace it with a new one following the steps in
Chapter 4. If the modem function is still not working properly, perform Check 5.
Check 5
The MP FPC may be faulty. Replace it with a new one following the steps in
Chapter 4. If the modem function is still not working properly, perform Check 6.
Check 6
The system board may be faulty. Replace it with a new one following the
instructions in Chapter 4.
2-44
[CONFIDENTIAL]
PORTEGE R200 Maintenance Manual (960-519)
2.10 Modem

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