HYUNDAI

        H-SA301

9

Trouble Shooting Guide

·

Before you consult this listing, make sure the vehicle s 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 owner s 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 unit s 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
unit s power wire, check spark plug wires