If there is a short circuit (less than 10 ohms),
remove the FRUs indicated one at a time until
the short circuit disappears. Replace the FRU
causing the short circuit.
11. If there is no short circuit, replace the following FRUs
one at a time.
Voltage converter
System board
FRU VA VG VB VA3 VB3
Voltage converter x x x x
Processor card x x
System board x x x x x
Video card x x x x
Base memory card x
Keyboard control card x x
Math coprocessor x x
Diskette drive x
Hard disk drive x
LCD x
Indicator assembly x x
80 IBM Mobile Systems HMM
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