Symptom/Error FRU/Action
The system will not suspend
or resume by opening or
closing the LCD.
1. Go to “Suspend
Mode” on page 213
and that check that
the computer can
enter suspend mode.
2. Go to Easy-Setup
screen and press
Fn+4. If the computer
enter suspend mode,
suspect that the
application program is
defective.
3. Interposer Card
4. DC/DC Card
5. System Board
Battery Fuel-Gauge does
not go higher than 90%.
1. Go to “Checking the
Battery Pack” on
page 208 and see the
note.
Audio problems. 1. Run the Audio Test.
2. Audio Card
Memory count (size)
appears differently from
actual size.
1. Go to “Memory
Checkout” on
page 201.
System configuration does
not match the installed
devices.
1. Go to “Checking the
Installed Devices
List” on page 230.
System hangs intermittently. 1. Go to “Intermittent
Problems” on
page 226.
Peripheral Device Related Symptoms
Symptom/Error FRU/Action
External display does not
work correctly.
1. See “External Display
Self-Test” in
“Common Devices
Checkout” section.
Printer problems. 1. Run Printer Self-test.
2. System Board
3. Parallel Port Device
4. Cable
Serial or parallel port device
problems.
1. Device
2. Device Cable
3. System Board
ThinkPad 355x, 360x, 370C, 750x, 755C, 755Cs 225