Car Amplifier User Manual
Trouble Shooting
 SYMPTOMS
NO SOUND
AMP NOT
SWITCHING 
ON
NO SOUND
IN ONE 
CHANNEL
AMP TURNING
OFF
MEDIUM / 
HIGH
VOLUME
PROTECTION
LAMP ON
 Is the power
 Is the Diagnostic
 LED illuminated? (YES)
 No power to power wire Repair power wire or connections.
 No power to remote
 wire with receiver on
 Check connections to radio.
 Burnt or broken fuse
 Check Speaker Leads Inspect for short circuit or an
 open connection.
 Reverse Left and Right RCA inputs
 to determine if the problem is 
 occurring before the amp.
 Be sure proper speaker load
 impedance recommendations
 are observed.
 (If you use an ohmmeter to check
 speaker resistance, please 
 remember that DC resistance and
 AC impedance may not be the same.)
 Check Audio Leads
 Check Speaker load
 impedance
 Shut down   Turn radio down
 Wait for AMP to cool
 Speaker wires shorted Separate speaker wires and 
 insulate
 Check for speaker short or
 amplifier overheating.
 Check all fuses to amplifier.
 Be sure Turn-on lead is connected
 Check signal leads. 
 Check gain control.
 Check Tuner/Deck volume level.
 Clean contacts on fuse holders.
LED illuminated?
(NO)
 CHECK
 REMEDY
Replace fuse
TROUBLE SHOOTING
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