Power Problems (Smartstation) - Compaq LTE Elite Maintenance And Service Manual

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* The power and hard drive LEDs are integrated into the power switch board,
which is part of the power switch cable harness. The battery charger LED
is integrated into the eject switch board, which is part of the eject
switch cable harness.
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Table 7-6. Power Problems
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Problem
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When a computer is
docked and the
expansion base power
button is pressed, the
expansion base and
computer do not power
on, no beep is
emitted, and there is
no LED activity on
either the expansion
base or the computer.
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The cable harness (power
switch cable harness or
eject switch cable
harness) * is defective or
is not making a complete
connection.
Probable Cause
The power button is not
being pressed completely
or is defective.
plastic switch
components
(Section 9.18).
3. Reassemble the
expansion base,
allowing the
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 LED
should turn on.
5. If the LED does
not turn on,
replace the cable
harness.
1. Reseat the cable
harness.
2. Replace the cable
harness.
3. Replace the
harness extension
cable.
4. Replace the
expansion base
system board.
Recommended Action(s)
Ensure that the power
button is being fully
pressed on the power
switch board by
completing the
following steps:
1. Remove the power
switch from the
top cover of the
expansion base,
but do not
disconnect the
power switch
cable harness.
2. Remove the power
switch board from
the rest of the
plastic power