Lenovo ThinkPad 560E ThinkPad 560X Hardware Maintenance Manual (Oct 1997) - Page 62

FRU Codes, The FRU code

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FRU Codes: If an error is detected by the diagnostic tests, a four-digit FRU code is displayed. The FRU code indicates two suspected FRUs. Replace the FRU that is indicated by the two leftmost digits first; then replace the FRU that indicated by the two rightmost digits. No FRU is assigned to code 00. If only one FRU is suspected, the other FRU code is filled with zeros. See the reference page before replacing the FRU. FRU Code 10 30 32 33 40 45 50 51 60 72 74 FRU System board Reserved External keyboard External mouse LCD assembly External monitor 1. Reseat the diskette drive (FDD-1) 2. Diskette drive (FDD-1) 1. Reseat the diskette drive (FDD-2) 2. Diskette drive (FDD-2) 1. Reseat the hard disk drive 2. Hard disk drive PC Card slot assembly Universal serial bus If the problem persists after replacement of the FRUs, go to "Undetermined Problems" on page 46. 52 IBM ThinkPad 560X (2640-60x, 70x) HMM

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FRU Codes:
If an error is detected by the diagnostic
tests, a four-digit FRU code is displayed.
The FRU code
indicates two suspected FRUs.
Replace the FRU that is
indicated by the
two leftmost digits
first; then replace the
FRU that indicated by the
two rightmost digits.
No FRU
is assigned to code 00.
If only one FRU is suspected, the
other FRU code is filled with zeros.
See the reference
page before replacing the FRU.
If the problem persists after replacement of the FRUs, go
to “Undetermined Problems” on page
46.
FRU Code
FRU
10
System board
30
Reserved
32
External keyboard
33
External mouse
40
LCD assembly
45
External monitor
50
1.
Reseat the diskette drive (FDD-1)
2.
Diskette drive (FDD-1)
51
1.
Reseat the diskette drive (FDD-2)
2.
Diskette drive (FDD-2)
60
1.
Reseat the hard disk drive
2.
Hard disk drive
72
PC Card slot assembly
74
Universal serial bus
52
IBM ThinkPad 560X (2640-60x, 70x) HMM