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Function-Related Symptoms
Symptom / Error
The system will not suspend
or resume by opening or
closing the LCD.
Battery Fuel-Gauge does
not go higher than 90%.
Memory count (size)
appears different from
actual size.
System configuration does
not match the installed
devices.
System hangs intermittently.
Peripheral-Device-Related Symptoms
Symptom / Error
External display does not
work correctly.
Printer problems.
Serial or parallel port device
problems.
288
IBM Mobile Systems - ThinkPad HMM Volume 3
FRU / Action in Sequence
1. Go to "Suspend
Mode" on page 276,
and check that the
computer can enter
suspend mode.
2. Boot an operating
system and press
Fn F4. If the
computer enters
suspend mode,
suspect that the
application program is
not working properly.
3. LCD Assembly
4. System Board
Go to "Checking the
Battery Pack" on
page 274 and see the
note.
Go to "Memory Checkout"
on page 269.
Go to "Checking the
Installed Devices List" on
page 293.
Go to "Intermittent
Problems" on page 289.
FRU / Action in Sequence
1. See "External Display
Self-Test" in
"Common Devices
Checkout" section.
1. Run Printer Self-test.
2. Parallel Port Device
3. Cable
4. System Board
1. Device
2. Device Cable
3. System Board
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