Precision Power PC1400 - Manual (Page 22)

NO SOUND Is the LED lit?
20
TROUBLE SHOOTING
GREEN
Substitute RCA inputs with another
source, and connect a known good
speaker to the output.
RED
Central Muting is engaged. Remote
turn-on wire must have more than 8
volts to release central muting. Check
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
WHAT COLOR ?
YES NO
Check Power and Remote turn-on wire
for voltage. Make sure Ground wire is
secure.
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.
AMPLIFIER PROTECTION
PC 1800 ONLY
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