11
Trouble shooting guide
Symptoms
Check / Cause
Action
No audible sound
Does the POW LED light up white?
Check protection fuse(s) of the amplifier
Check remote wire connection to the head unit
Check +12 Volt power supply wire connection
Check ground wire connection
Does the PRO LED light up red?
Check for speaker short or amplifier overheating
Device does not turn on
Power supply of the amplifier?
Check protection fuse(s) of the amplifier
Check +12 Volt power supply wire connection
Check ground wire connection
Remote wire powered?
Check remote wire connection to the head unit
No sound from one or
more channel(s)
Speaker wiring undamaged?
Check for short circuit or open connections
Input signal on all RCA leads?
Reverse left and right RCA inputs to check the audio
input signal
Device turns off at medium
or high volume
Load impedance of each speaker correct?
Check if each speaker load impedance matches the
technical specifications of the amplifier
Status LED turned on red
Temperature protection circuit active
Decrease head units volume / wait for cooling
Speaker wires short / speaker damaged
Check speaker / wires and insulate if necessary
Terms of warranty
The limited warranty for this product is covered by Ground Zero´s local distribution partners and their
terms and conditions. For further information contact your local retailer or distributor.
Ground Zero GmbH
Erlenweg 25, 85658 Egmating, Germany
Tel. +49 (0)8095/873 830
Fax -8310
www.ground-zero-audio.com
