Section Vi, Testing/Repairing The Printed Circuit - StreamLight LiteBox Service Manual

TESTING/REPLACING THE PRINTED CIRCUIT BOARD
Testing the Printed Circuit Board
1. Disassemble the Litebox as shown in Section I.
2. It is important to determine that the power input charging connector is functioning properly.
Refer to Section VIl, Testing the Litebox Charge Connector. Do not reassemble the
Litebox; follow the testing instructions below.
3. Disconnect both battery leads and remove the battery.
Caution : The battery must not be connected to the leads.
4. Make sure that the switch has been checked according to the instructions in Section IV.
5. Make sure that the wiring harness has been checked according to the instructions in
Section V.
6. Connect the Litebox to a known good wall charger.
A . If the green LED is lighted and the red LED is off follow the test procedures below.
Set the multimeter to the DC volts position.
1. Place the positive meter lead on the red battery lead.
2. Place the negative meter lead on the black battery lead.
3. The meter should read between 7.1 and 7.4 volts.
a. The green LED should be on
b. The red LED should be off.
4. Keep the multimeter connected to the battery leads.
a. Place a 15 ohm/10 watt resistor across the battery leads.
b. The multimeter should read between 6.65 and 6.95 volts.
c. The green LED should be off.
d. The red LED should be on.
e. If the PC board performs as outlined in the steps above it
is functional (reassemble the Litebox as shown in Section I).
f. If the PC board did not perform satisfactorily it should be replaced.
B. If the red LED is lighted, both LED's are lighted, or neither LED is lighted, the circuit
board should be replaced.
Replacing the Printed Circuit Board
1. Disassemble the Litebox as shown in Section I.
2. Remove the input power connector from the
bottom Litebox housing.
a. Remove the screw holding the connector.
b. Pry the connector upward and away from
the mounting hole in the housing (see
illustration).
SECTION VI
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