Symptom/Error FRU/Action
Can't read diskette 1. Diskette Drive
Hard disk problem 1. Hard Disk
Printer problem 1. Check Configuration
2. Parallel Port
3. System Board
Communication or plotter
problem
1. Check Configuration
2. Serial Port
3. PCMCIA Device
4. System Board
Undetermined Problems
If you have not already done so, go to “Power Systems
Checkout” on page 209 and check the AC adapter and
battery voltages.
If the AC adapter and battery voltages are correct and the
problem remains, do the following.
1. Power-off the computer.
2. Remove or disconnect one of the following devices:
- Any external devices or cables
- Any PCMCIA device
3. Power-on the computer.
4. If the symptom remains, repeat steps 1, 2, and 3 until
you find the failing adapter or device.
5. If this does not solve the problem, replace the system
board.
214 IBM Mobile Systems HMM - Volume 1
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