Lenovo ThinkPad 380ED TP 380Z Hardware Maintenance Manual (August 1998) for us - Page 31

Function-Related Symptoms, Go to Memory Checkout

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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

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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