Specifications; Troubleshooting - Polk Audio PA4A Installation And Operation Manual

SPECIFICATIONS

FM Radio
Frequency Coverage (USA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87.5 to 107.9 MHz
Frequency Coverage (Europe) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .87.5 to 108 MHz
Sensitivity (S/N = 30dB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4uV
Image Rejection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .>45 dB
Stereo Separation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >25 dB
AM/MW
Frequency Coverage (USA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .530-1710 kHz
Frequency Coverage (Europe) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .522-1620 kHz
Sensitivity (S/N = 20dB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36dB
General
Operating Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .DC 12 Volts
Grounding System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Negative Ground
Speaker Impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8 ohms per channel
Tone Controls:
Bass (at 100 Hz) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..±10dB
Treble (at 10 kHz) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .±10dB
Power Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50W x 4
Current Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Ampere (max.)
Chassis Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182(L) x 52.2(W) x 173(H)
Front Panel Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . .188(L) x 58(W) x 21(H)

TROUBLESHOOTING

Symptom
The vessel's accessory
No Power
switch is not on
Fuse is blown
No Sound Volume is too low
Wiring is not properly
connected
The Operation keys do not Wired commander is not
work properly installed
Built-in microcontroller is
not operating properly
24
PA4A
Cause Solution
If the power supply is
properly connected to the
vessel's accessory
terminal, switch the
ignition key to "ACC"
Replace the fuse
Adjust volume to audible
level
Check wiring connections
Check wired commander
installation and connection
Press the RESET button
located on the back of the
Tuner/Amp Module