Dual DA304 owner manual Troubleshooting, Installation, Problem, Cause, Action, indicator

Models: DA304

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Troubleshooting

INSTALLATION

Troubleshooting

Problem

Cause

Action

 

 

 

 

+12V wire not connected or incorrect

Check connections for proper voltage

Unit will not turn on

voltage. REM wire not connected or

(11~16VDC)

(no power LED

incorrect voltage

 

indicator)

GND wire not connected

Check connection to ground

 

 

 

 

Fuse(s) blown

Replace fuse(s)

 

Speaker wires not connected

Check connections at speakers

 

Volume turned all the way down

Increase volume level at head unit

Unit has power -

One or more speaker wires touching

Insulate all bare speaker wires from

LED is green (but

each other or touching chassis

each other and chassis ground

ground

 

no sound)

 

 

Speaker(s) defective or damaged

Check/replace speaker(s)

 

 

 

 

 

Input signal not connected

Check high or low level inputs for

 

proper connection

 

 

 

Incorrect fuse rating

Use fuse(s) with correct rating

Unit blows fuse(s)

+12V wire touching chassis ground

Check for pinched wire

 

Speaker(s) defective or damaged

Check/replace speaker(s)

 

Bad ground connection

Make sure amplifier is grounded to

 

clean bare metal

Engine noise

 

Signal ground loop or RFI (radio

Re-route RCA cables from existing

 

 

frequency interference)

high current wiring

 

One or more speaker wires touching

Insulate all bare speaker wires from

 

each other or touching chassis

each other and chassis ground

 

ground

 

 

LED illuminates red

Speaker(s) defective or

Check/replace speaker(s)

(protect mode)

damaged internally (shorted)

 

 

Speaker load less than 2 ohms

Adjust speaker load - amplifier will

 

(stereo). Speaker load less than 4

not operate at less than 4 ohms

 

ohms (bridged)

when bridged

Distorted audio

Incorrect input signal type or

Check connections and reduce/

output

input level too high

adjust input level

Low audio output

Incorrect input signal type or

Check connections and increase/

 

input level too low

adjust input level

 

 

Check (+) and (-) speaker

Weak bass

Speaker(s) are wired out of phase

connections

 

 

(Observe correct polarity)

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Page 13
Image 13
Dual DA304 owner manual Troubleshooting, Installation, Problem, Cause, Action, indicator