Front Panel Description - Phonic XP 600 User Manual

FRONT PANEL DESCRIPTION

1 CLIP/LIM LED (RED)
When the audio signal drives the amplifier output cir-
cuit beyond its power capability, it will clip. The peak
limiter detects this and quickly reduces the gain to
minimize the amount of overdrive, so as to preserve
as much of the program dynamics as possible.
2 PROTECT LED (YELLOW)
The power amplifier features several types of protec-
tion to prevent damage to the circuitry during turn-on
or fault conditions. The power-on protection relay pre-
vents damaging thumps to the speakers as the power
comes on. When the amplifier is switched on, the
protect LED will light for a few seconds, and then go
out, indicating that the relay has closed, connecting
the speakers to the amplifier.
6
- - 1 1 4 4
- - 1 1 6 6
N N O O R R M M A A L L
- 10
-6
60 CLIP/ - - 3 3 2 2
SUB
- - 2 2 0 0 - - 2 2 0 0 - - 2 2 0 0 - - 2 2 0 0
90 LIMIT
WOOFER
120
PROTECT
- - 4 4 0 0 - - 4 4 0 0 - - 4 4 0 0 - - 4 4 0 0
0
POWER
- - 1 1 6 6 - - 1 1 4 4
- 10
N N O O R R M M A A L L
6
- - 3 3 2 2
CLIP/ 60
- - 2 2 0 0 - - 2 2 0 0 - - 2 2 0 0 - - 2 2 0 0
SUB
LIMIT 90
WOOFER
120
- - 4 4 0 0 - - 4 4 0 0 - - 4 4 0 0 - - 4 4 0 0
C C
PROTECT
0
The protect LED will also come on if the speaker ter-
minals are short circuited, or the impedance of the load
between them is too low. Under these circumstances,
the protect LED will stay on until the fault condition is
rectified.
If the amplifier' s large heat sinks go down for thermal
reasons, leave the power connected to the amplifier,
try to improve ventilation, and reduce the gain. Without
power, the fan cannot operate, and the amplifier will
require longer to reach a low enough temperature to
restart.
3 SIGNAL LED (GREEN)
Each channel of the power amplifier features a signal
light to show that how much of an audio signal has
been put in to the channel. The threshold for the indi-
cator is -40dB, above that, noise will trigger the LED to
light.
XP 600/1000/2000/2100/3000/3100