Speaker-Related Symptoms
Symptom/Error FRU/Actionin Sequence
Speakersmake noise or
nosound comes from
system.
1. Speakers
2. Systemboard
InDOS or Windows
multimediaprograms, no
soundcomes from the
computer.
1. Speakers
2. Systemboard
Power Management-Related Symptoms
Symptom/Error FRU/Actionin Sequence
Thesystem will not enter
hibernationmode. 1. Keyboard(if control is from the
keyboard)
2. Harddisk drive
3. Systemboard
Thesystem will not wake
upfrom hibernation
mode.
1. Keyboard(if control is from the
keyboard)
2. Harddisk drive
3. Systemboard
Thesystem will not enter
suspendmode after
closingthe LCD.
1. Reseatsuspend board cable
2. Suspendboard ASM
3. Systemboard
Batteryfuel-gauge does
notgo higher than 90%. 1. Removebattery ASM and let it
coolfor 2 hours.
2. Refreshbattery (continue using
batteryin BIOS Setup mode until
poweroff, then charge battery).
3. Battery
4. Systemboard
Systemconfiguration
doesnot match the
installeddevices.
LoadSetup Defaults and reboot the
system.
Systemhangs
intermittently. 1. FanASM
2. Systemboard
Peripheral-Device-Related Symptom
Symptom/Error FRU/Actionin Sequence
Externaldisplay does not
workcorrectly. 1. CRTadapter
2. Systemboard
USBdoes not work
correctly. 1. Powerboard ASM
2. Systemboard
24 ThinkPad s30, s31