compaq lte elite User Manual

							to dock in a non-Windows
environment (Section D.1).
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The motor does not The motor cable is loose 1. Verify that the
engage but a beep is or disconnected. motor cable is
emitted one second tightly connected
after attempt to to the motor. If
dock. not, tighten the
quick connects on
the cable with a
pair of pliers and
reconnect them.
2. Verify that the
motor cable is
connected firmly to
the expansion base
system board. If
the cable does not
connect firmly,
replace it.
--------------------------------------------------
The motor is bad. Replace the docking
mechanism.
--------------------------------------------------
The motor circuitry is Verify that the
defective on the voltage outputs for
expansion base system the motor cable are
board. proper. ** If the
outputs are not
proper, replace the
expansion base system
board.
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* The keylock switch is integrated into the eject switch cable harness.
** The voltage outputs for the motor cables red and white wires vary
according to the state of the motor, as follows:
When the motor is turning forward, the red wire is + 18V and the white
wire is 0V.
When the motor is turning backward, the red wire is 0V and the white
wire is + 18V.
When the motor is not turning, the red wire is + 18V and the white
wire is + 18.
===========================================================================
Problem Probable Cause Recommended Action(s)
===========================================================================
The motor starts to There is physical Undock the computer
engage, but the interference. by pressing the eject
computer does not button. If the
completely dock and a computer does not
beep is emitted. undock, remove the
computer using the
manual eject override
method (Section D.1),
and complete the
following steps as
required: 
						

							1. Check that the
docking mechanism
sled can move
freely back and
forth. If there is
resistance, make
sure that the sled
is clean and free
of foreign
substances.
2. Ensure that the
bottom of the
computer and the
surface of the
expansion base
docking bay are
clean.
3. Ensure that the
rubber feet are
properly located on
the bottom of the
computer.
4. Gently shake the
expansion base
upside down and
listen for any
loose objects.
===========================================================================
Problem Probable Cause Recommended Action(s)
===========================================================================
Connector is not aligned. 1. If possible,
determine whether
the problem is with
the expansion base
or the computer by
trying to dock
another computer or
by docking the
computer in another
expansion base.
2. Ensure that the
198-pin external
options connector
is aligned straight
and is seated
completely in the
top cover. If the
connector is not
straight:
a. Ensure that the
connector shield
is on properly.
b. Loosen the
screws securing
the docking
mechanism and
the expansion
base system
board. Ensure
that the 
						

							expansion base
system board is
properly seated
in the top
cover, then
tighten the
screws in the
proper sequence
(Section 9.13).
3. If docking a Compaq
LTE Elite, loosen
the system board
screws in the
computer and
retighten them in
the proper sequence
(Section 4.17).
===========================================================================
Problem Probable Cause Recommended Action(s)
===========================================================================
The top cover is bowing Check for bowing in
up. the top cover. *** If
bowed, complete the
following steps as
required:
1. Ensure that the
drive cage spacer
is installed
properly (Section
9.16). Reinstall
the spacer if
improperly
installed or
missing.
2. Replace the top
cover.
--------------------------------------------------
Defective docking Replace the docking
mechanism. mechanism.
---------------------------------------------------------------------------
The motor engages but A non-supported computer Ensure that the
cycles the computer in is being used. computer is a Compaq
and out. LTE Lite or a Compaq
LTE Elite. ****
----------------------
The reflectors on the 1. Ensure that the
plastic gear are blocked white reflectors on
or missing. the plastic gear
are present and are
clear of debris.
2. Replace the docking
mechanism.
--------------------------------------------------
The motor position sensor 1. Ensure that the two
on the expansion base small lenses on the
system board is blocked motor position
or defective. sensor are clear of
debris.
2. Ensure that the
motor position 
						

							sensor is aligned
straight over its
holes in the
expansion base
system board.
3. Replace the
expansion base
system board.
---------------------------------------------------------------------------
*** When verifying whether the top cover is bowed up, note that the
computer should ride on the outer edges of the docking bay of the
expansion base and not in the center area. If the center area has
scuff marks or if the computer can rock from side to side while in the
docking bay, this indicates that the top cover is bowed up.
**** Compaq LTE Lite must use the SmartStation Adapter to dock in the
Compaq SmartStation (Section D.1).
===========================================================================
Problem Probable Cause Recommended Action(s)
===========================================================================
The motor engages, A foreign object is Ensure that there is
but the docking interfering. no foreign object
mechanism doesnt between the
pull the computer computer and the
towards the expansion expansion base.
base.
--------------------------------------------------
The top cover is bowing Check for bowing in
up. the top cover. *** If
bowed, complete the
following steps as
required:
1. Ensure that the
drive cage spacer
is installed
properly (Section
9.16). Reinstall
the spacer if
improperly
installed or
missing.
2. Replace the top
cover.
--------------------------------------------------
The docking mechanism 1. Ensure that the
sled is defective. docking mechanism
sled is functioning
properly.
2. Replace the docking
mechanism.
===========================================================================
Table 7-2b. Docking/Undocking Problems (Undocking)
===========================================================================
Problem Probable Cause Recommended Action(s)
===========================================================================
The motor does not No power. 1. Ensure that the
engage, and no beeps power cord is
are emitted. properly connected
to the expansion 
						

							base.
2. Verify that the fan
is on and that the
VBatt1 and VBatt2
outputs from the
power supply are in
specification
(Section 10.2). If
the fan is not on
or the VBatt
outputs are out of
specification,
replace the power
supply.
3. Verify that the
power supply
connector has a
tight connection to
the vertical
circuit board by
removing the card
cage and pushing
the power supply
connector down. If
the connector is
loose, replace the
power supply.
---------------------------------------------------------------------------
*** When verifying whether the top cover is bowed up, note that the
computer should ride on the outer edges of the docking bay of the
expansion base and not in the center area. If the center area has
scuff marks or if the computer can rock from side to side while in the
docking bay, this indicates that the top cover is bowed up.
===========================================================================
Problem Probable Cause Recommended Action(s)
===========================================================================
The computer is on while Turn off the computer
attempting to undock in a before undocking.
non-Windows environment
(Section D.1).
--------------------------------------------------
The eject button on the Ensure that the eject
eject switch is not being button is being fully
pressed completely or is pressed on the eject
defective. switch board by
completing the
following steps:
1. Remove the eject
switch from the
top cover of the
expansion base,
but do not
disconnect the
eject switch cable
harness.
2. Remove the eject
switch board from
the rest of the
plastic eject
switch components 
						

							(Section 9.18).
3. Reassemble the
expansion base,
allowing the eject
switch board to
hang out from the
side of the unit
for test purposes.
4. Ensure that the
operating
condition of the
expansion base is
such that the
eject switch is
functional.
5. Press the eject
button that is
mounted directly
on the eject
switch board.
6. If the expansion
base undocks the
computer properly,
replace the
plastic eject
switch components.
7. If the expansion
base does not
undock the
computer properly,
replace the eject
switch cable
harness.
===========================================================================
Problem Probable Cause Recommended Action(s)
===========================================================================
The eject switch cable 1. Replace the eject
harness or harness switch cable
extension cable is harness.
defective. 2. Replace the
harness extension
cable.
---------------------------------------------------------------------------
The motor does not The expansion base system Replace the expansion
engage, and no beeps board is defective. base system board.
are emitted.
--------------------------------------------------
The computer status sense Check to see if the
pads on the bottom of the sense tabs are bent
computer are not making or deformed. If so,
contact with the sense replace the docking
tabs on the docking mechanism.
mechanism sled.
---------------------------------------------------------------------------
The motor does not The expansion base is Ensure that the
engage but there is locked. keylock is unlocked
an immediate beep. and that the keylock
switch on the top
cover is not stuck.
If the keylock 
						

							switch is stuck or
appears to be
defective, replace
the eject switch
cable harness. *
--------------------------------------------------
The PCMCIA sensors are 1. Ensure that the
blocked, disconnected, or lenses of the
defective. PCMCIA sensor
emitter and
receiver are clear
of debris.
2. Ensure that the
PCMCIA sensor
emitter and
receiver boards
are installed
properly and are
connected to the
power switch cable
harness.
3. Replace the PCMCIA
sensor emitter and
receiver boards.
---------------------------------------------------------------------------
* The keylock switch is integrated into the eject switch cable harness.
===========================================================================
Problem Probable Cause Recommended Action(s)
===========================================================================
The computer is on while Turn off the computer
attempting to undock in a before undocking.
non-Windows environment
(Section D.1).
---------------------------------------------------------------------------
The motor does not The motor cable is loose 1. Verify that the
engage but a beep is or disconnected. motor cable is
emitted one second tightly connected
after attempt to to the motor. If
undock. not, tighten the
quick connects on
the cable with a
pair of pliers
and reconnect
them.
2. Verify that the
motor cable is
connected firmly
to the expansion
base system board.
If the cable does
not connect
firmly, replace
it.
--------------------------------------------------
The motor is bad. Replace the docking
mechanism.
--------------------------------------------------
The motor circuitry is Verify that the
defective on the expansion voltage outputs
base system board. for the motor cable 
						

							are proper. ** If the
outputs are not
proper, replace the
expansion base system
board.
---------------------------------------------------------------------------
The motor starts to There is a physical Undock the computer
engage, but the obstruction. by pressing the eject
computer does not button. If the
completely undock and computer does not
a beep is emitted. undock, remove the
computer using the
manual eject override
method (Section D.1),
and complete the
following steps as
required:
1. Check that the
docking mechanism
sled can move
freely back and
forth. If there is
resistance, make
sure that the sled
is clean and free
of foreign
substances.
2. Ensure that the
bottom of the
computer and the
surface of the
expansion base
docking bay are
clean.
3. Ensure that the
rubber feet are
properly located
on the bottom of
the computer.
4. Gently shake the
expansion base
upside down and
listen for any
loose objects.
---------------------------------------------------------------------------
** The voltage outputs for the motor cables red and white wires vary
according to the state of the motor, as follows:
When the motor is turning forward, the red wire is + 18V and the white
wire is 0V.
When the motor is turning backward, the red wire is 0V and the white
wire is + 18V.
When the motor is not turning, the red wire is + 18V and the white
wire is + 18.
===========================================================================
Problem Probable Cause Recommended Action(s)
===========================================================================
The top cover is bowing Check for bowing in 
						

							up. the top cover. ***
If bowed, complete
the following steps
as required:
1. Ensure that the
drive cage spacer
is installed
properly
(Section 9.16).
Reinstall the
spacer if
improperly
installed or
missing.
2. Replace the top
cover.
--------------------------------------------------
Defective docking Replace the docking
mechanism. mechanism.
---------------------------------------------------------------------------
The motor engages but Docking mechanism sled 1. Make sure that the
cycles the computer does not slide freely. docking mechanism
out and then back sled can slide
in.freely on the top
cover. Clean the
mechanism if
necessary.
2. Replace the
docking mechanism.
--------------------------------------------------
The top cover is bowing Check for bowing in
up. the top cover. ***
If bowed, complete
the following steps
as required:
1. Ensure that the
drive cage spacer
is installed
properly (Section
9.16). Reinstall
the spacer if
improperly
installed or
missing.
2. Replace the top
cover.
---------------------------------------------------------------------------
*** When verifying whether the top cover is bowed up, note that the
computer should ride on the outer edges of the docking bay of the
expansion base and not in the center area. If the center area has scuff
marks or if the computer can rock from side to side in the docking bay,
this indicates that the top cover is bowed up.
===========================================================================
Problem Probable Cause Recommended Action(s)
===========================================================================
The reflectors on the 1. Ensure that the
plastic gear are blocked white reflectors
or missing. on the plastic
gear are present
and are clear of 
						

							debris.
2. Replace the
docking mechanism.
--------------------------------------------------
The motor position sensor 1. Ensure that the
on the expansion base two small lenses
system board is blocked on the motor
or defective. position sensor
are clear of
debris.
2. Ensure that the
motor position
sensor is aligned
straight over its
holes in the
expansion base
system board.
3. Replace the
expansion base
system board.
---------------------------------------------------------------------------
The motor engages and Computer status sensor Tighten the quick
undocks the computer cable is disconnected. connects on the
while the computer is computer status
on without first going sensor cables and
into Standby. ***** connect them.
--------------------------------------------------
Computer status sense tabs Determine if the
on the docking mechanism computer status sense
are broken or are not tabs are bent down,
making good contact. deformed, or broken
off. If so, replace
the docking
mechanism.
---------------------------------------------------------------------------
***** To deactivate most of the sensors for the purposes of
troubleshooting a problem, turn configuration switch number 6 off
(Section C.2).
===========================================================================
Table 7-2c. Manual Undocking (Manual Eject Override) Problems
===========================================================================
Problem Probable Cause Recommended Action(s)
===========================================================================
Computer cannot be There is a tight fit 1. Push the computer
removed when using the between the computer and toward the
manual eject override the expansion base which expansion base
mechanism. causes the hooks on the until you hear the
docking mechanism sled hooks spring back,
to get stuck in the then remove the
computer. computer.
2. If the computer
still does not
release, remove
the docking
mechanism (it may
fit tightly), then
remove the
computer.
---------------------------------------------------------------------------