Phoenix Gold PSX350.2 Manuel page 5

Amplifier Owner's Manual
TROUBLESHOOTING
No power: Check voltage at amplifier with a DMM (volt meter), B+ and
REM (with head unit on) the voltage should register between 12.2V and
14.6V when using the attached ground lead of the amplifier. Check fuse
at amplifier and at the battery. Use a meter to verify connection from
one end of the fuse to the other, breaks may not always be visible. If the
fuse is blown, check the power wire and also the amplifier for a short.
If the short is in the amplifier itself, see your Phoenix Gold dealer. If no
short is present, replace the fuse.
Power without sound: Turn the amplifier off and check all input and
output signal cables and power connections. Check the speakers for
shorts with a DMM (volt meter) or by connecting them to another audio
source. After making sure everything is correct, turn the amplifier on
again.
"Motor Boating" - the power indicator going off repeatedly when
the audio system is on: Check the amplifier's connection to the
battery. Check battery voltage. If low, recharge or replace the battery.
Check all ground connections.
Power without sound and the PROTECT LED is lit: The red
PROTECT LED lights when the amplifier shuts down for either
thermal or over-current protection. A high internal amplifier operating
temperature will trigger thermal shutdown: after it cools about 5°C, the
amplifier will restart. A shorted speaker lead or operation into unusually
low impedance loads will trigger over-current shutdown: cycle power
at the amplifier REM terminal to restore operation. Check for shorted
speaker wiring or damaged speakers or crossover systems if over-
current shutdown occurs.
No sound from one side: Check the balance control in the head unit.
Check speaker connections. Check signal input connection.
Very low output: Check your head unit's fader control or the amplifier's
input sensitivity level. Make sure HP frequency control is not set too
high and LP frequency control is not set too low at the same time.
Frequent amplifier shutdown with automatic recovery: This indicates
chronic amplifier thermal shutdown because of operation at consistently
high internal temperatures. High operating temperature can be caused
by inadequate ventilation. Make sure you are not running a lower than
recommend impedance. Also check for damaged speakers or passive
crossover systems. Finally, chronic thermal shutdown may result from
otherwise normal operation of the amplifier at elevated output power
levels, which can be resolved by providing additional amplifier cooling,
installing a higher-power amplifier, or reducing amplifier output level.
No sound from amplifier using Bluetooth: Verify Bluetooth is on
and connected with PGBTM51. Verify power lite is illuminated blue on
PSX350.2
If still no audio, turn off Bluetooth from media device, if sound now
plays from media device, try turning Bluetooth back on from media
device.
No sound from amplifier using RCA or Line level input: Verify
Bluetooth is off on any paired Bluetooth device. Bluetooth is primary
source, RCA or line level inputs are not active when Bluetooth device is
connected, even if not actively streaming content.
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