Troubleshooting - AKG CU400 Mode D'emploi

Problem
All LEDs dark.
All LEDs dark although at least one
charging slot is loaded.
STATUS LED flashing red.
CU 400
Possible Cause
• No defect. STATUS LEDs are not
activated before you insert a trans-
mitter with a battery into a charg-
ing slot.
1. AC adapter is not connected to
power.
2. DC cable is no not connected to
charger.
3. One or more charging contacts fail
to make contact with the transmitter.
4. Internal error.
• Charging cycle has been stopped:
1. Transmitter uses dry battery.
2. Charging contacts contaminated.
3. Inside temperature of battery is too
high.
4. Inside temperature of charger is
too high.
5. Battery defective (voltage <0.5 V).
6. Charger connected to incompatible
power supply whose output voltage
is too high: both STATUS LEDs
flashing red.
7. Charger defective.

6 Troubleshooting

Remedy
• (Insert transmitter with recharge-
able battery.)
1. Connect power supply to conven-
ient power outlet.
2. Connect DC cable to charger.
3. Check contacts for resilience, or
clean contacts.
4. Disconnect power supply or DC
cable, wait for 10 seconds, and
connect again.
Should the problem persist, contact
your nearest AKG Service Center.
1. Remove transmitter from charging
slot; replace dry with rechargeable
battery.
2. Clean charging contacts on charger
and transmitter with soft cloth.
3. Allow battery/charger to cool down,
charging cycle will resume when
temperature returns to acceptable
range.
Should the problem persist, contact
your nearest AKG Service Center.
4. Make sure there is enough free
space around charger to provide
adequate heat dissipation.
5. Replace battery.
6. Use original AC adapter supplied
with charger.
7. Contact your nearest AKG Service
Center.
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