Custom-autosound USA-66 User Manual Page 2

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Table of Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
General Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Radio Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Low Level Output Connection . . . . . . . . . . . . . . . . . . . .4
Wiring Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Controls and Display . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Receiver Basic Operation . . . . . . . . . . . . . . . . . . . . . . .7
CDC Changer Operation . . . . . . . . . . . . . . . . . . . . . . . .7
Aux Input Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Noise Suppression . . . . . . . . . . . . . . . . . . . . . . . . . . .8-9
Trouble Shooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
1
Radio Specifications
FM Section
Tuner Type . . . . . . . . . . . . . . . . . . . . . . . . .PLL
Frequency Range . . . . . . . . . . .87.5-1 08 MHz
Image Rejection . . . . . . . . . . . . . . . . . . . .50dB
Quieting Sensitivity . . . . . . . . . . . . . . . . . .4uV
T.H.D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1%
IF Rejection . . . . . . . . . . . . . . . . . . . . . . .60dB
AM Section
Frequency Range . . . . . . . . . . . .530-1710KHz
S/N Ratio . . . . . . . . . . . . . . . . . . . . . . . . .50dB
Selectivity . . . . . . . . . . . . . . . . . . . . . . . . . 25dB
A
udio Section
Output Channel . . . . . . . . . . . . . . . . . . .50 X 4
Output Impedance . . . . . . . .4ohm per speaker
Response . . . . . . . . . . . . . . . . . . .30Hz-I 8KHz
General
Power Supply . . . . . .12VDC Negative Ground
Speaker impedance . . . . . . . . . . . . . .4-8 ohm
Stand-By Current . . . . . . . . . . . . . . . . . .0.02A
Chassis .... 180mm(7
7
/
8”)(w) X 70 (2 -
1
/
4")mm
. X 150 (5
5
/8")mm(D)
IF Frequency . . . . . . . . . . . . .10.7MHZ
Sensitivity . . . . . . . . . . . . . . . . . . .2.6V
S/N Ratio . . . . . . . . . . . . . . . . . .60dB
Capture Ratio . . . . . . . . . . . . . . .1.5dB
Separation . . . . . . . . . . . . . . . . .35dB
IF Frequency . . . . . . . . . . . . .450KHz
Sensitivity . . . . . . . . . . . . . . . . . .2OuV
System Power . . . . . . . . . . .200 Watts
THD . . . . . . . . . . . . . . . . . . . . . . .0.5%
Problem Cause Solution
NO Lights, NO Sound
Power Lead:Red Wire not con-
nected or Power not getting to
radio
Check fuse in filter box.Check
all connections on this wire
and verify that radio is getting
12V on this wire.
Lights but No Sound
Power Lead:Orange Wire not
Connected or power not getting
to radio
Check fuse in filter box.Check
all connections on this wire
and verify that radio is getting
12V on this wire
Lights 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 speak-
er wires are shorting to them-
selves or ground.
Sound only heard on one
side
Noise with Radio
Reception
Speaker wires disconnected
Balance control set to one side
Antenna not fully extended
Car underneath Fluorescent
lights
Check all connections
Adjust balance control to cen-
ter position
Extend antenna to full length.
Back vehicle out of garage
and test again
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