Rockville DB Marine Series, Owner'S Manual

Page: 15 / 24

15
PROBLEM
Amp won’t power on
Power but no sound
1. The external fuse is not properly secured to the power wire or is not making proper contact to the wire.
Ensure the fuse is properly seated and making contact.
2. Your external fuse (inside the fuse holder) is blown. Replace the fuse. Never replace the supplied exter-
nal fuse with one of a larger value
3. Amplifier internal fuse is blown (the fuse on the side of the amp). Replace the fuse. Never replace the
built in fuse with one of a larger value
4. Check the ground wire. Make sure the connection is 100% secure and tight.
5. Power wire is not connected properly to the ring terminal or it has acid corrosion on it. Check the con-
nection to the ring terminal and use a wire brush to clean any corrosion off of the ring.
6. Check the power wire. Make sure the positive is wired to the positive, and the negative is going to the
negative. Make sure the power wire is secure.
7. Check the remote turn on wire. Make sure that this wire is connected securely to the amplifier on one
end, and make sure the other end is connected to the remote turn on of the receiver. A common error we
see is the remote turn on get connected to the antenna wire instead of the remote turn on wire of the head
unit. Please note the remote turn-on wire is a required wire. The amp will not work if this is not connected.
It is also possible the remote terminal is loose and fell out.
8. Power wire is connected to the ground terminal of amplifier. Connect the power wire to the +12V termi-
nal of the amp
9. Power or ground wire became loose. Check all connections and make sure the are tight.
1. Check if any protection lights are on. If protection lights are on, please refer to the “Amp goes into pro-
tect mode” section on page 14.
2. Make sure the RCA cable that is plugged into your amplifier is plugged into the RCA input. If you have it
plugged into the RCA output then the amplifier will not get any sound.
3. Check is the RCA cable that is going from the amplifier to the receiver. We recommend having a spare
RCA cable to test with. Many times RCA cables go bad since they are thin cables. You can also test you
CAUSE/SOLUTION