IBM Workpad Z50 Mobile Companion Manual

							16 IBM W orkPad z50, Mobile Companion 16 
						

							W orkPad z50 Mobile Companion 17
Installing the ROM/DRAM Card
This section describes how to install the ROM card or the
optional DRAM c ard to the W orkPad z50.
Note: W hen you remove the ROM/DRAM card, you will lose
all stored data.  Before you remove the ROM/DRAM card, be
sure to bac k up all data and applic ations in the bas e
memory.
Caution: Bef ore removing or ins erting the RO M/DRAM c ard,
all power s ourc es  (AC power, the main battery pack, and the
backup batteries) must be removed.
Follow thes e instructions when ins erting the RO M/DRAM
card:
1.  Plac e the W orkPad z50 into suspend mode and
disconnect AC power.
2.  Turn the W orkPad z50 upside down.
3.  Remove the main battery and remove the bac kup
batteries.
4.  Unscrew the s ingle (c aptive) screw that s ecures the
ROM/DRAM card compartment cover to the chassis.
Remove the c over.
Unscrew the screw
that secures the 
ROM/DRAM card cover
to the chassis and 
remove the ROM/DRAM
card cover.
ROM cardDRAM card
5.  Loc ate the RO M/DRAM c ard Slot.
6.  Find the notch on the side of the c ard.
20  
						

							18 IBM W orkPad z50, Mobile Companion 18 7.  W ith the notched end of the c ard toward the right side
of the s ocket, ins ert the c ard at an angle of
approximately 20 degrees into the s oc ket; press it in
firmly as s hown  (1).  G ently pivot the c ard until it snaps
into plac e (2).
Attention
To avoid damaging the RO M/DRAM c ard, do not touc h its
contact edge.
8.  Ensure that the ROM/DRAM card is securely inserted in
the slot.
9.  Replac e the RO M/DRAM c ard c over over the memory
slot, aligning the bac k side of the c over first; then
tighten the screw.
10.  Attach the main battery and insert the backup batteries.
11.  Turn the W orkPad z50 top side up.  Connec t the AC
Adapter and c ables; then turn on the W orkPad z50.
Attention
Handling a Screwdriver
·
  Use a screwdriver that fits the screw.
·
  Use the screwdriver perpendic ular to the head of the
screw.
Handle the screwdriver properly; otherwis e, you might
damage the screw.
Removing the ROM/DRAM Card
Note: Before removing the ROM/DRAM card, back up all
data and applic ations in the bas e memory.  All data and
installed applications will be lost by removing the
ROM/DRAM c ard.  The ROM needs to be reinstalled bef ore
starting the PO ST or running W indows CE.
Caution: Before removing the ROM/DRAM card, all power
sources (AC power, the main battery pack, and the backup
batteries) must be removed.
Follow thes e instructions when removing the RO M/DRAM
card:
1.  Turn off the W orkPad z50.
2.  Disconnect AC power.
3.  Turn the W orkPad z50 upside down.
4.  Remove the main battery and remove the bac kup
batteries. 
						

							W orkPad z50 Mobile Companion 19 5.  Unscrew the s ingle (c aptive) screw that s ecures the
ROM/DRAM card compartment cover to the chassis.
Remove the c over.
6.  Using your fingers or a small screwdriver, press out the
two latc hes on the sides of the c ard away from the slots.
T he RO M/DRA M c ard s hould p op out s lightl y
.
Removing the DRAM
and ROM Cards
Pull the tabs in
the direction of the arrows
to release the cards.
DRAM Card
ROM Card
7.  Gently pull out the c ard.
8.  Replac e the RO M/DRAM c ard c over over the memory
slot, aligning the bac k side of the c over first; then
tighten the screw.
9.  Attach the main battery and insert the backup batteries.
10.  Turn the W orkPad z50 top side up.  Connec t the AC
Adapter and c ables; then turn on the W orkPad z50.
Brightness/Contrast Buttons Checkout
If you suspec t a problem with the brightness/c ontrast buttons
do the f ollowing actions one at a time to c orrec t the problem.
Do not replace a nondefective FRU:
·
  Res eat the inverter c ables and c onnectors to the
mainboard and the LCD panel.
·
  Replace the inverter card
·
  Replace the mainboard 
						

							20 IBM W orkPad z50, Mobile Companion 20
Power Management Features
The power management features are des igned to s ave as
much electricity as possible by putting c omponents into a
low-power consumption mode as often as possible.  This
low-power mode is referred to as “suspend” mode.
Full Power Mode
The W orkPad z50 operates in Full power mode when power
management is dis abled and the AC Adapter is c onnec ted.
Suspend Mode
In suspend mode, the s ystem is powered off exc ept f or the
system DRAM.  The W orkPad z50 enters suspend mode
when the s ystem remains idle f or a specified amount of time
or under one of the following conditions:
·
  The Power button is press ed.
·
  The LCD panel is clos ed.
·
  A W indows CE power management time-out occurs.
·
  The W indows CE Sus pend ic on is clicked.
·
  The battery releas e loc k is releas ed.
·
  The remaining battery c apac ity of the battery pac k is
very low.
·
  A notification event set in the “Alarms” window of the
World Clock applic ation in the Control Panel occ urs.
Attention
The s ystem will not enter suspend mode after an idle
time-out under the following conditions:
The s erial port is c onnected to another s ystem running
W indows CE s ervic es .
The W orkPad z50 is c onnected to a network through the
PCMCIA LAN card.
The system will resume to full power mode under one of the
following conditions:
·
  The Power button is press ed while in suspend mode.
·
  An application launching key is pressed.
·
  The LCD panel is opened.
·
  An internal fax/modem ring-in occurs.
·
  The Microphone button is pus hed.
·
  The Notific ation button is pushed when the
notification LED blinks.
·
  A built-in data/fax modem ring occurs.
·
  The s erial port is c onnected to another s ystem f or
trans mitting and rec eiving data. 
						

							W orkPad z50 Mobile Companion 21
Symptom-to-FRU Index
The s ymptom-to-FRU Index lists the s ymptoms and errors
and the possible c aus es.  The most likely c aus e is listed first.
Note:P erf or m t h e FRU r ep l ac em en t or  ac t i ons  in  t h e
sequenc e shown in the “FRU/Action” c olumns.  If
a FRU replac ement did not s olve the problem, put
the original part back in the W orkPad z50.  Do not
replace a nondefective FRU.
This index can also help you determine the next possible
FRUs to be replac ed when s ervicing the W orkPad z50.
Numeric error c odes show the errors detected in s ys tem
operation.  In the f ollowing error c odes, X c an be any
number.  If no c odes are available, us e narrative s ymptoms .
If the symptom is not listed, go to “Undetermined Problems”
on page 26.
Note:For IBM devices not supported by diagnostic
codes in W orkPad computers, see the manual
for that device.
Numeric Error Codes
Symptom / Error FRU / Action in Sequence
1XX
101 IR error
101 IR errorMainboard
2XX
201 checksum error
202 DRAM test error (on
board)
203 DRAM test error
(DRAM module)
204 VRAM test error
201 RO M checksum error1.  Reinstall ROM card
2. ROM card
3. Mainboard
202 DRAM test error (on
board DRAM)Mainboard
203 DRAM test error (DRAM
module)1.  Reinstall DRAM module
2. DRAM module
3. Mainboard
204 VRAM test errorMainboard
3XX
301 Keyboard error
301 Keyboard error1.  Reinstall keyboard
2. Keyboard
3. Mainboard
4XX 
						

							22 IBM W orkPad z50, Mobile Companion 22
401 LED board error
Symptom / Error FRU / Action in Sequence
401 LED board error1. LED board
2. Mainboard
5XX
501 Battery error
501 Battery error1. Battery
2. Mainboard
6XX
601 Audio playbac k error
602 Audio recording error
601 Audio playbac k error1. Speaker
2. Mainboard
602 Audio recording error1. Microphone
2. Mainboard
7XX
701 Display error
701 Display error1. LCD panel
2. Mainboard
8XX
801 Serial port test error
801 Serial port error1.  Serial cable
2. Mainboard
9XX
901 PC card/CF test error
901 PC card/CF test errorMainboard
86XX
8601 Mouse test error
8601 Mouse test errorMainboard 
						

							W orkPad z50 Mobile Companion 23
Function-Related Symptoms
Symptom / ErrorFRU / 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 WorkPad z50
can enter suspend
mode.
2. LCD panel
3. Mainboard
The memory count (size)
appears different from actual
size.Go to “Memory Checkout” on
page 8.
The system hangs
intermittently.Go to “Intermittent Problems”
on page 26.
Indicator-Related Symptoms
Symptom / Error FRU / Action in Sequence
The indicator incorrectly
remains off or on, but s ystem
runs correctly.Mainboard
The external/power status
LED indicator blinks from
green to amber.1.  Check that a correct
battery is installed.
2. Battery pack
3. Mainboard
The battery indicator does not
turn on when the battery is
installed.1. Battery pack
2. Mainboard
Infrared-Related Symptoms
Symptom / Error FRU / Action in Sequence
Unable to communicate using
the Infrared (IR) Port.1.  Make sure the setup for
the IR is correct.  Use
the WorkPad z50
Configuration utility.
2.  Make sure there are no
fluorescent lights near the
W orkPad z50.  The
W orkPad z50 may recei ve
optical noise from the
fluorescent light.
3. Run the advanced
diagnostic test.  If an error
occurs, replace the parts
shown by the FRU code. 
						

							24 IBM W orkPad z50, Mobile Companion 24
Keyboard- or TrackPoint-Related Symptoms
Symptom / Error FRU / Action in Sequence
The keyboard (one or more
keys) does not work.1.  On the Windows
Taskbar, check that
Caps Lock or Num Lock
are not enabled.
2.  Reseat the keyboard cable
on the mainboard.
3. Keyboard
4. Mainboard
The TrackPoint does not
work.1. Check the “TrackPoint”
settings in the Control
Panel.
2.  Reseat the keyboard cable
on the mainboard.
3. Go to “TrackPoint
Checkout” on page15.
4. Keyboard
5. Mainboard
The pointer moves
automatically or does not
work correctly.See “TrackPoint Checkout”
on page 15.
LCD-Related Symptoms
Symptom / Error FRU / Action in Sequence
LCD backlight not working.
LCD too dark.
LCD brightness cannot be
adjusted.
LCD contrast cannot be
adjusted.1.  Open the “Display
Properties” window in
the Control Panel.
Check that the auto dim
setting is not enabled
under the “Backlight”
tab.
2.  Reseat the LCD cable and
connectors.
3. LCD assembly
4. Inverter assembly
5. Mainboard
LCD screen unreadable.
Non-readable characters.
Screen abnormal.
W rong color displayed.1.  Reseat the LCD cable
and connectors.
2. LCD assembly
3. Inverter assembly
4. Mainboard
LCD has extra horizontal or
vertical lines displayed.LCD assembly
LCD lid is loose.1. Hinge screws
2. Hinge group 
						

							W orkPad z50 Mobile Companion 25
Peripheral Device Related Symptoms
Symptom / Error FRU / Action in Sequence
The external monitor does
not work correctly.1.  Check that the external
monitor is enabled in the
Rapid Access utility.
2.  Check that the external
monitor can display at
640x480 and 800x600, @
75Hz refresh rate.
3. Connect the external
monitor to another PC.  If
the monitor works fine,
replace the mainboard.  If
not, replace the external
monitor.
Serial port device problems.1.  Run serial port wrap
test.
2. Device
3. Mainboard
4. Device cable
Note: The serial port and the
infrared port can not be used at
the same time.
Power-Related Symptoms
Symptom / Error FRU / Action in Sequence
System enters suspend
during operation.1. Go to “Power Systems
Checkout” on page 9.
2. Battery pack
3. Mainboard
4. Check the power outlet
Other Symptoms
Symptom / Error FRU / Action in Sequence
Errors occur only when the
cradle is used.See “Cradle Checkout” on
page 15.
PC Card slot pin is damaged.PC Card slots assembly.
Note:  If you c annot find a s ymptom or an error in this list
and the problem remains, s ee “Undetermined Problems”.