Precision Power 355cs - Manual (Page 22)


troublesHootinG
symptom probable cause remedy
No output Source or amplifier
not turned on . Check source or amplifier and fix
as required .
Audio input not con-
nected or no output
from source . Check rCA connection and
signal integrity, fix or replace as
required .
Bi-amp/parallel switch
set incorrectly for ap-
plication . Set Bi-amp/parallel switch to
correct setting (see Crossover
connections and input switch set-
ting, Bi-amplified connections to
crossover, or Bi-wire connections
to crossover) .
Protection circuit
activated . Turn down volume, protection
circuit will automatically reset .
Speaker wires not
connected . Check speaker wires and fix or
replace as required .
Audio cycles on
and off Speaker damaged . Check system with known work-
ing speaker and fix or replace as
required
Thermal protection
engaged . Check that amplifier has ad-
equate ventilation, check speaker
impedance load
Loose or poor audio
connections . Check rCA power and speaker
connections and fix or replace as
required .
Distorted output Preamp volume set
to high exceeding
maximum capability of
amplifier . Check volume or preamp and
adjust appropriately .
Impedance load to
amplifier too low . Check speaker impedance load, if
below 1 ohm rewire the speakers
to achieve a higher impedance .
Bi-amp/parallel switch
set incorrectly for ap-
plication . Set Bi-amp/parallel switch to
correct setting (see Crossover
connections and input switch set-
ting, Bi-amplified connections to
crossover, or Bi-wire connections
to crossover) .
Shorted speaker
wires . Check speaker wire connections
and fix or replace as needed .