IBM ThinkPad i Series 1500 User Manual download pdf (Page 47)

Symptom/Error FRU/Action in Sequence

Printer problems.  Run printer self-test.

 Printer driver

 Printer cable

 Ensure that "Parallel Port" in

the "Onboard Devices Config-

uration" menu of the BIOS

Utility is correctly set.

 System board

Serial or parallel port

device problems.

 Device driver

 Device cable

 Device

 Ensure that "Serial Port" and

"Parallel Port" in the

"Onboard Devices Configura-

tion" menu of the BIOS Utility

is correctly set.

 System board

Modem-Related Symptoms

Symptom/Error FRU/Action in Sequence

Internal modem does

not work correctly

 Go to “FRU tests” on

page 48.

 Modem connector

 Modem board

 System board

Intermittent Problems

Intermittent system hang problems can be caused by a

variety of reasons that have nothing to do with a hardware

defect, such as cosmic radiation, electronic discharge, or

software errors. FRU replacement should only be consid-

ered when a recurring problem exists.

When analyzing the intermittent problem, do the following:

1. Run the diagnostic test for the system board at least

10 times.

2. If no error is detected, do not replace any FRUs.

3. If any error is detected, replace the FRU. Rerun the

test to verify that there are no more errors.

Undetermined Problems

The diagnostic tests did not identify which adapter or

device failed, which installed devices are incorrect, whether

a short circuit is suspected, or whether the system is inop-

erative. Follow the procedures below to isolate the failing

FRU.

Verify that the power supply being used at the time of the

failure is operating correctly.

1. Power off the computer.

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IBM ThinkPad i Series 1500 User Manual Page 47

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