C. Test the negative (ground) side of the system.
1. Place the positive meter lead onto the right charge connector pin (connector facing
you, key on top).
2. Place the negative meter lead onto the ground spring on the cigarette lighter plug.
3. The meter should indicate continuity.
4. If there is no continuity (complete circuit) the DC-1 should be replaced.
Direct Wire and DC-2 Systems
1. DC-2 system testing (system does not have a rack and utilizes the Litebox input connector).
a. Connect the DC-2 to a known good 12 volt source.
b. Place a multimeter in the DC volts position.
c. The voltage should be measured as in step 4 of the AC input test procedure.
d. The meter should give a reading of between 12 and 15 volts DC.
e. Replace the DC-2 if there is no voltage detected.
2. The 12VDC direct wire charge rack has a permanently wired cord to supply input power.
a. If possible the direct wire charger should be checked while it is connected to its power
source ( a known good 12VDC source is also suitable).
b. Measure the charger output at the charge pins located on the interior rear wall of the
charger.
1. Place the positive meter lead on the charge pin located closest to the side of the
rack where the power cord enters the rack.
2. Place the negative meter lead onto the other charge pin.
3. The meter should show the supply voltage (12 to 15 volts).
a. If there is no voltage or reverse voltage check the wiring between the rack and the
supply (also check any in-line fuse).
b. If the supplied voltage is higher than 15 volts or lower than 12 volts an alternate
source should be used.
Testing the Charge Rack
1. Connect the charge rack to its power input source.
2. Place a multimeter in the DC volts position.
3. There are two charge pins located at the rear of the charge rack.
a. Place the positive meter lead on the charge pin which is located closest to the external
power input connector.
b. Place the negative lead on the other charge pin.
4. With the power source connected the meter should read between 11 and 22 volts.
5. If there is no reading the charge rack needs to be checked for internal wiring integrity.
A . Charge racks which utilize an external power connector should be disconnected from
their power source.
1. Place the charge rack on a flat surface with the power input
connector facing you.
2. The power input connector has a key slot which should be
facing toward the rear of the rack.
3. Place a multimeter in the continuity position.
a. Place one meter lead into the top contact of the input
connector.`
b. Place the other lead onto the output charge pin (located on
the interior wall) which is closest to you.
c. The meter should indicate continuity.
d. Follow the same procedure to test the bottom contact of the
power input connector and the other charge pin.
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