Custom Autosound USA-630II second series - Manual (Page 6)

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Problem Cause Solution
NO Lights, NO Sound
Power Lead:Red Wire not
connected or Power not get-
ting to radio. Orange wire not
connected or power not get-
ting to radio. Check both fuse’s in filter
box.Check all connections
on these wires and verify
that radio is getting
12Volts on both wires.
Lights but No Sound
Power Lead:Orange Wire not
Connected or power not get-
ting to radio Check fuse in filter
box.Check all connections
on this wire and verify that
radio is getting 12Volts on
this wire
Lights,Numbers
Displayed but No Sound
Problem with a speaker or
speaker wire Verify all speakers used
are 4ohm or greater. Verify
that none of the speakers
are going to ground.
Verify that none of the
speaker wires are shorting
to themselves or ground.
Sound only heard on
one side
Speaker wires disconnected
Balance control set to one
side Check all connections
Adjust balance control to
center position
Noise with Radio
Reception Antenna not fully extended
Car underneath Fluorescent
lights or power lines. Extend antenna to full
length.
Back vehicle out of garage
and test again
Intermitant Sound or
Radio Power Cuts in
and out Loose connections or bad
ground on radio wiring har-
ness. Possible speaker wire
short. Verify all connections are
good. Secure wire har-
ness with tie wraps so it is
secure.