HP Omnibook 300 425 430 530 Service Manual

25Power Management ProblemsStart: Low
battery lifePhysical
inspection:
HP battery?
Contacts dirty?
Physically OK?Ac adapter
attached to OB
and wall?Attach ac adapterHas unit
recharged
sufficiently?Recharge sufficientlyPower on
during
recharge?Ensure power onDOS
or Windows
running?Start DOS or
WindowsSee OB
power icon?Done: Suspect
software problemIs
Windows
running?Start WindowsOB
Power icon in
Control Panel?Power Mgmnt
icon in OB Tools?Speech:
Standard or Off
means
processor
always on; uses
more...

26Power Management Problems (continued)ADoes
battery indicator
reach full charge?Ambient
temperature in
spec?Bad/no
battery
message?PCMCIA cards
installed?Speech: PCMCIA
cards can use
power even when
not onRemove PCMCIA
cards, recharge
batteryGet
1-1/2 hours
battery life?DoneEnsure ac
adapter plugged
into OB and wallClean boot:
Ctrl Alt Del, press
F4 during bootBad/no
battery
message?Done: Replace
battery or use OB on
ac power only3rd-party
software
installed?Speech: DOS
games, TSRs,
other software
can...

27Power Management Problems (continued)BUse MSD to 
determine what 
TSRs are runningDisable TSRsGet 1-1/2 hours battery life?Get 1-1/2 hours battery life?DoneDoneDone: Suspect bad or old battery Yes
YesNo
No 

28Pop-Out Mouse ProblemsStart: OB popout 
mouse problemEliminate obvious physical problemsSee 
Windows?Start 
Windows 
runningIs  
mouse OB 
popout mouse?Disable other 
mouseEnable OB 
popout mouseSee mouse 
pointer?Does mouse 
pointer move?ABDone: Suspect 
software problem 
(Windows problem) Yes
Yes
Yes
YesNo
No
No 

29Pop-Out Mouse Problems (continued)AReaches all 4 
corners of 
screen?Can you 
calibrate 
mouse?Is mouse jittery, 
intermittent?Suspect bad 
mouseCDone: Mouse 
should be OK Yes
Yes
YesNo
No
No 

30Pop-Out Mouse Problems (continued)BSuspect software
configuration
problemCheck for
correct OB
mouse driverMouse driver
OK?Look at mouse in
Windows Control
PanelSee OB punch
button?Set Control Panel
for OB punch
button mouseOB mouse
works OK?Exit Windows,
run Setup from
DOS command
lineDoneDone: Replace with known
good version of correct
OB mouse driverSetup shows
correct mouse
driver?Configure Setup
for correct OB
mouse driverMouse
moves?Suspect bad
mouseCDone: Mouse
OK Yes
Yes
YesYes
Yes No
No
NoNo
No 

31Pop-Out Mouse Problems (continued)CClean boot: 
Ctrl Alt Del, 
press F5 when 
startingRun OB 
diagnostic 
programDoes mouse 
pass all tests?Remove mouse 
from OB base 
unit, examine 
mouse, and reinsertRun OB 
diagnostic 
programDoes mouse 
pass all tests?Boot normally to 
WindowsOB mouse 
operates 
correctly?DoneDone: Suspect 
software problemCan you put 
suspect mouse in 
known good OB?Suspect mouse 
works in known 
good OB?Put known good 
OB mouse in 
suspect base unitKnown good 
mouse works?Suspect...

32Floppy Drive ProblemsStart: External 
floppy disk drive 
problemEliminate obvious physical problems: 
Cable OK? 
Pins not bent? Cable connected and solidly in 
connectors?External 
FDD is HP 
device?Cable is 
correct one?Inserts, ejects 
known good disk 
cleanly?Has drive ever 
worked?ABDoneLocate and 
attach correct 
cableDrive works 
OK?DoneDone: Suspect bad 
or damaged drive Yes
Yes
Yes
Yes
YesNo
No
No
No
No 

33Floppy Drive Problems (continued)AClean boot:
Ctrl Alt Del, press
F5 during bootRun short self-
test twiceCan
you swap with known
good drive and
cable?With original OB
turned on,
connect good
drive and cableGood drive
works OK?With known good
OB turned on,
connect original
drive and cableDrive works
OK?DoneWith known good
OB turned on,
connect original
drive and cableOriginal drive
works OK?Original OB base
unit badOriginal drive
works OK?Original drive or
cable badSuspect software
problemSuspect...

34Floppy Drive Problems (continued)BClean boot: 
Ctrl Alt Del, 
press F5 during bootRun OB disk 
self-test: 
Put empty, 
known good 
disk, formatted 
for DOS, in 
drive. Press 
Enter.Repeat disk 
self-testDisk self-test OK?Change diskette, run self-test 
againSelf-test 
OK?Suspect bad 
floppy diskette; 
replace floppy with known good oneBoot from drive 
A: with OB 
companion diskBoots OK?Insert blank, 
formatted floppy 
disk, do 
long-term disk self-testLong-term 
self-test OK?Done: If long-term...