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Chapter 4 145
USB Failure
If the USB fails, perform the following actions one at a time to correct the problem. Do not replace a non-
defective FRU:
Modem Function Failure
If the internal Modem fails, perform the following actions one at a time to correct the problem. Do not replace a
non-defective FRUs:
Start
Check
USB/B to
M/B cable
Re-assemble
the USB/B
cable to M/B
OK
NG
Check
USB/B
module
OK
Swap USB/B
Mo d ule
OK
NG
Swap M/B
Start
Check
USB/B to
M/B cable
Re-assemble
the USB/B
cable to M/B
OK
NG
Check
USB/B
module
OK
Swap USB/B
Mo d ule
OK
NG
Swap M/B
START
RJ-11
well connected?
Connect it wellNo
Modem wire well
connected?
No Connect it well
No Seat it well
No
Replace
Modem card
Replace M/B
Modem card well
seated?
Modem card
OK?