7
Protection system
Your Audionet AMP IV is equipped with one of the most powerful pro-
tection circuits available on the market.
In case of an error please check the cause referring to the following table:
¨
Overload: Short-circuit of a loudspeaker cable or loudspeaker defect.
¨
Overtemperature: Please free the top and bottom ventilation slots!
¨
HF Error: HF oscillation, please check your input source.
¨
DC Error: Dangerous DC-voltage at the output: Defective preamp,
source or active crossover carrying DC.
A possible fault is indicated for all four power amplifiers separately. In
case of an error the LED at the front panel will flash. Look through the
gaps in the top plate. At the rear end of the main PCB you will find 12
LEDs. While runnin in error free operating mode all 12 LEDs will be on.
If an error occured only one of the LEDs will be on indicating the error.
There is a number printed next to each LED. Please look up the corre-
sponding error description in the following table:
1.
DC on channel 1L
2.
DC on channel 2L
3.
DC on channel 1R
4.
DC on channel 2R
5.
Overload on channel 1L
6.
Overload on channel 2L
7.
Overload on channel 1R
8.
Overload on channel 2R
9.
Overtemperature on heat sink L
10.
Overtemperature on heat sink R
11.
High frequency in group L
12.
High frequency in group R
WARNING:
Remove cause for error before switching on AMP IV
again!
