TROUBLESHOOTING TIPS
Problem
Solution
Power LED not ON
With a Volt Ohm Meter (VOM) check
:
•
+12 Volt power terminal (should read +10 to +16V DC
•
Remote turn on terminal (should read +10 to +16V DC)
•
Ground Terminal
Power LED lights BLUE, no output
•
Check RCA connections
•
Test speaker outputs with known good speaker
•
Substitute known good Source Unit
•
Check for signal on the RCA cable with VOM in AC position.
Power LED lights BLUE, but volume
•
Short circuit protection is engaged.Check for speaker
reduces automatically.
wires shorted to each other or the vehicle chassis.
Red Status Protection LED is ON, no
output and
1. Amp is VERY HOT
•
Advanced Protection Circuitry is engaging due to high
internal temperature of the amplifier. Amplifer requires
more air flow around the chassis. If this continues
choose a better ventilated mounting location.
2. Amp shuts down ONLY when the
•
Voltage protection engaged. Voltage to the amp is not
vehicle is running
within the 10-16 VDC operating range.
Have the battery/ charging system inspected.
3. Amp has no output
•
Possible short circuit. Check speaker wiring. Must
completely turn off amplifier and restart to resume play.
Alternator noise (varies with RPM)
•
Check for damaged RCA cable.
•
Check routing of RCA cable
•
Check Source Unit for good ground
•
Check amp gain setting, turn down if set too high
Poor Bass Response
•
Check speaker polarity, reverse the connection of one
speaker only.
NOTE: After using all the troubleshooting tips above, if the Status L.E.D. is activated and glows RED with no
speakers connected to the amplifier, and all the power connections are correct, this would indicate an
internal problem with the amplifier. Contact DLS Sweden or your local dealer
.
Summary of Contents for DD Series
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