Digital Design SS2a 소유자 매뉴얼 - 페이지 11

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5. TROUBLE SHOOTING TIPS

NO SOUND ( NO OUTPUT)

@ Pls check all connections, cables' rounting, short, voltage at The M/SS-Class and headunit

@ Pls check fuses ,If they are blown or burnt, Pls replace with new one.

@ Pls check whether speakers work well, you can test speakers by connecting to another amplifier

PROTECTION

@ Pls check overload, overheat (thermal), short and voltage. DC offset

@ Mlc, M2b and SSlb minimum working impedance is 1 ohm for single and 2 ohm for linked

operation.

@ If The M&SS-Class amplifiers are shut down due to overheat, they will be on some minutes later.

Pls make better airflow and no obstruction around The M&SS-Class for thermal protection

@ The Mlc, M2b and SSlb have Low and high voltage protection. Working Voltage is 8.5V 15V.

so Voltage is lower than 8.5V or higher than 15V, they will be protected.

@ When over 4V DC comes into the M&SS-Class amplifiers, then, they will be DC protected.

Check whether The M&SS-Class amplifiers work after removing RCA-Input

If The M-Class amplifiers work, then check DC by checking RCA-input L and R.

When DC is over 4V at input, try by replacing headunit or source unit

DISTORTION

@ Readjust input level and check the speaker quality at another amplifier.

If there is still problem, Replace poor quality speakers with good quality ones

POOR BASS RESPONSE

@ Pls check speaker cables and reverse polarity of one channel

BUZZING SOUND

@ Check The M&SS-Class amplifiers and headunit ground contact.

@ Check Rca Jack and replace with new one or rerout Rca Jack.

WHINING NOISE

@ Engine noise is caused by poor grounding of The M&SS-Class amplifiers, headunit, other

components, battery or alternator, so Pls check all grounding connection.