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REDBACK
®
Portable PA System
Fig2: Input & output controls
Fig3: Unbalanced lead configuration for using a 3 pin XLR balanced microphone with the portable PA.
Charging Circuit Operation
When 240V a.c. or 12-13.8V d.c. power is applied the charging circuit will charge the in-built 12V 4.5Ah
battery. During the charging process the "charge" indicator on the main panel will illuminate. When in
portable operation (running off battery), the "bat. low" indicator will illuminate when charging is
required. Approximate charge time from flat condition is 6-8 hrs.
Note: The in-built battery will charge from the 12-13.8V dc or 240V ac inputs even when the portable
PA is switched off. The battery charge and bat. low LED's will function normally whilst the power is
off.
To prevent damage to the batteries we recommend that both 12-13.8V dc and 240V ac mains power
is removed (disconnected) if the portable PA will not be used for more than 48 hours
Page 4
Tip
Sleeve
CAUTION
Operation: (See Fig 7)
1. Push to open the battery cover.
2. Insert 2 x 1.5V AA batteries into the battery holder according to polarity (+) and (-) indication marked
on the battery housing.
3. Replace battery cover.
4. Connect the microphone or guitar pickup to the unit.
5. Set the line / mic switch to match the sound source (line / mic). Line is for guitar/instrument pick up.
6. After setting the chosen frequency to the same frequency as the receiver, push the power switch to
"ON". The LED indicator will flash to indicate the unit is operational.
7. Push the power button to "OFF" when mic is not used, and remove the battery in beltpack if not
used for a long time. This will prevent damage to the unit that a defective "leaking" battery may cause.
8. If the LED indicator is permanently illuminated, the battery needs to be replaced.
9. If the LED indicator does not flash at all when first switched on then check batteries are inserted
correctly and batteries are not completely flat.
Handheld Transmitter:
Operation: (See Fig 8)
1. Push to open the battery cover.
2. Insert 2 x 1.5V AA batteries into the battery holder according to polarity (+) and (-) indicator
marked on the battery housing.
3. Replace battery cover.
4. After setting the chosen frequency to the same frequency as the receiver, push the power switch to
"ON". The LED indicator will flash once to indicate the unit is operational.
5. Push the power button to "OFF" when mic is not in use. Remove the batteries from the unit if not to be
used for a long time. This will prevent damage to the unit that a defective "leaking" battery may cause.
6. If the LED indicator is permanently illuminated, the battery needs to be replaced.
7. If the LED indicator does not flash at all when first switched on then check batteries are inserted
correctly and batteries are not completely flat.
Troubleshooting:
1. Signal dropouts and noise may be suddenly encountered by interruption from outside if there is too
long a distance between microphone and receiver, or battery power is low. In such a case, adjust
receiver antenna or change battery.
2. Do not drop the microphone on a hard concrete floor, nor strike the microphone head front with
1
fist or fingers, nor blow strongly into the microphone head front.
2
3. Remove the battery in microphone if not in use for a long time. This will prevent damage that a
3
defective "leaking" battery may cause.
REDBACK
®
Portable PA System
Page 9
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