Precision Power PC1400 owner manual Trouble Shooting, No Sound

TROUBLE SHOOTING

NO SOUND		Is the LED lit?
					NO
	YES
				Check Power and Remote turn-on wire
				for voltage. Make sure Ground wire is
				secure.
			PC 1800 ONLY
			WHAT COLOR ?
		RED			GREEN
Central Muting is engaged. Remote				Substitute RCA inputs with another
turn-on wire must have more than 8				source, and connect a known good
volts to release central muting. Check				speaker to the output.
Remote turn-on at the head unit. You

may need to install a relay if the head unit doesn't put out sufficient voltage.

STILL NO SOUND - See your Authorized PrecisionPower Dealer or Call: 1-800-62POWER

AMPLIFIER PROTECTION

PC-1400

Both excessive temperature and low impedance (or short circuit) conditions will activate the amplifier's AP-III protection circuitry, which turns off the amplifier's output.

PC-1800

Both excessive temperature and low impedance (or short circuit) conditions will activate the amplifier's AM-IV protection circuitry turns down the amplifier's output.

When the amplifier cools down, or the impedance is corrected, both protection circuits will restore full power. If your amp is turning off/down check your speakers and wiring for low impedance and short circuits. Also, ensure that there is nothing blocking the normal convective airflow of the amplifier. No obstruction should be within 2" of the amplifier on all sides.

NOTE: Low battery voltage will cause the amplifier to run warmer.

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