GROUND ZERO GZCS A-1.650D
CAR SPECIFIC SERIES
Trouble shooting guide
Listening to music can be emotional, impressive, relaxing or enjoyable. At that, it doesn´t really
matter what kind of music is the personal favorite, whether it´s Instrumental, Jazz, Electro, Latin,
Classic, Rock or any other music direction. However, audio reproduction quality at each desired
volume is elementary. Some music styles require higher levels while others prefer the soft tones
.
.
GROUND ZERO considers all the different wishes of customers during the development of new
products. Along with this, the target is to create the most realistic sound, to transfer the soul of the
music and the intention of the performer. Summarized to one phrase: RESPECT THE MUSIC!
Ground Zero GmbH
Erlenweg 25, 85658 Egmating, Germany
Tel. +49 (0)8095/873 830
Fax -8310
www.ground-zero-audio.com
Symptoms
Check / Cause
Action
No audible sound
Does the POW LED turn to green?
Check protection fuse(s) of the amplifier (harness)
Check remote wire connection (RCA input mode)
Check +12 Volt power supply wire connection
Check ground wire connection
Did the PROTECT LED turn to red?
Check for speaker short or amplifier overheating
Device does not
turn on
Power supply of the amplifier?
Check power wire or connections
Remote wire powered? (RCA input
mode)
Check remote wire connection to the head unit
No sound on one
channel
Speaker wiring undamaged?
Check for short circuit or open connections
Input signal on each RCA lead?
Reverse left and right RCA inputs to check the
audio input signal
Device turns off at
medium / 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 unit´s volume / wait for cooling
Speaker wires short / speaker
damaged
Check speaker / wires and insulate if necessary
