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Function-Related Symptoms
Symptom / Error FRU / Action in Sequence
The system does not
suspend or resume when
the LCD is closed or
opened.
1. Go to “Suspend
Mode” on page 20,
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
The battery Fuel-Gauge
does not go higher than
90%.
Go to “Battery Checkout”
on page 14 and see the
note.
The memory count (size)
appears different from the
actual size.
Go to “Memory Checkout”
on page 12.
The system configuration
does not match the installed
devices.
Go to “Checking the
Installed Devices List” on
page 35.
The system hangs
intermittently.
Go to “Intermittent
Problems” on page 32.
Indicator-Related Symptoms
Symptom / Error FRU / Action in Sequence
The indicator incorrectly
remains off or on, but the
system runs correctly.
1. System board
2. DC/DC card
The battery power status
indicator blinks from green,
yellow, to orange.
1. Check that a correct
battery is installed.
2. Battery pack
3. DC/DC card
4. System board
The battery indicator does
not turn on when the battery
is installed.
1. DC/DC card
2. Battery pack
3. System board
Infrared-Related Symptoms
ThinkPad 380Z 29