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Tro
ubleshooting/Testing
HP 82713A
C. BATTERY TEST
1. Press <SHIFT=ATTN>.
2. Unplug the PMS.
3.
Remove the topcase
if not already
removed.
4. Measure the battery
voltage on the battery
case.
5.
Lift one end of
R3.
6. Connect an ammeter
in series with the
lifted end of RS3
and the pad it came
from.
T. Measure the
current flow.
8. Measure the
current flow
again.
9.
Reinsert the
lifted end of R3.
If the battery voltage is greater than 2.4
volts, procede to step D (POWER USAGE TEST).
If the current is less than 35 microamps, then
replace the battery (BT1).
If the current is less than 35 microamps, then
replace the logic board.
D. POWER USAGE TEST
1.
Lift one end of
Wi.
2.
Connect an
ammeter in series
with the lifted
end of W1 and
the pad it came
from.
3.
Be sure the HP=T75
is turned off.
4, Plug the PMS into
the leftmost port of
the
HP=-T75.
5-4
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