Soundmax SM-SA602 [13/27] Trouble shooting guide
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Soundmax SM-SA602 [13/27] Trouble shooting guide

Soundmax SM-SA602 [13/27] Trouble shooting guide
SOUNDMAX SM-SA602
13
Trouble Shooting Guide
· Before you consult this listing, make sure the vehicles electrical system is working properly by verifying
that other electrical items
(e. g. headlights, Windows, etc.) still function correctly.
SYMPTOM PROBABLE CAUSE SOLUTION
Low or N.C. remote turn-on
connections
Check remote turn-on voltage at amp and
head unit
Blown fuse Replace with new fast-blow fuse
Power wires not connected
Check butt splices or solder joints;
Check ground and battery connections
No audio
Blown or non-speakers connected
Use VOM or DVM to measure speaker coil
impedance; check speaker wiring connections
Input sensitivity not set properly or
damaged speaker cones
See adjustment procedure and check each
ste; inspect each speaker for damage and
repair or replace suspected component
Distorted audio
Low turn-on voltage Refer to head unit owners manual
Audio level low Mute circuits is on head unit
Check electrical system for low voltage;
Check ground connection
Audio lacks
Speakers wired with wrong polarity,
causing cancellation of bass
frequencies
Check polarity of wires from amplifiers to each
speak as defined by the system design;
Check battery voltage at amplifier during
operation
External fuse
blowing
Incorrect wiring or short circuit
Refer to electrical installation and check each
installation step
Whining noise on
audio with engine
running
Amplifier is picking up alternator noise
Install a line noise filter on the head units
power wire;
Check alternator routing diodes or voltage
regulator for proper operation. Check all
grounds, check battery voltage, check RCA
cables
Ticking noise on
audio with engine
running
Amplifier is peaking up radiated spark
noise
Check RCA audio cable; Install an in-line noise
filter on the head units power wire, check
spark plug wires

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