Hyundai H-SA502, Instruction Manual

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9
TROUBLE SHOOTING GUIDE
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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