Possible Reason:
+
Amplifier has gone to protect mode due to high signal level, high temperature or
output short or overloading.
+
Check the level of signal from input source. If it is high then reduce the input signal
level and than switch ON the amplifier and increase volume slowly.
+
The amplifier should never be operated at a level which causes the clip LEDs to
illuminate continuously. It will give distorted sound.
+
Also check the impedance of speakers, shorting of speaker connections if any.
Rectify the fault and then switch ON the amplifier for normal operation.
14
LXA-7600
15
LXA-7600
• Trouble Shooting…
ON
Possible Reason:
+
Check if the level of the input signal is too low.
+
Check the signal source is operating and the input cable is intact.
+
The channel volume control setting is too low.
Indication:
Possible Reason:
+
To restore normal operation, turn down the volume control, switch OFF the set for few
seconds,
remove the fault if any and switch ON again. Increase the volume control
slowly for the desired output.
+
The amplifier may be in mute mode due to speaker impedance mismatch or output
short circuit.
+
Check the speaker impedance and speaker wiring for stray strands or breaks in the
insulation.
Indication:
CLIP
PROTECT
SIGNAL
TEMP
ON
CLIP
PROTECT
SIGNAL
TEMP
+
Check if the fan is working, proper ventilation is provided and output connections are
as recommended, remove the fault if any.
+
Switch off the amplifier to cool down.
Possible Reason:
+
This could be due to wrong speakon connections or faulty speakers.
+
The amplifier may be in mute mode due to output short circuit, overloading or poor
ventilation resulting in the rise in temperature either of output devices or power
transformer as indicated by respective LEDs to unsafe region.
+
Check the output speakon connections as per fig. 3 ot 4
on page no. 7 (Output
Connections for Stereo, Mono or Bridge Mode)
.
+
To restore normal operation, turn down the volume control, than switch ON the set
and increase the volume control for desired output.
Indication:
Condition: No Sound
Indication:
ON
CLIP
PROTECT
SIGNAL
TEMP
ON
CLIP
PROTECT
SIGNAL
TEMP
+
The amplifier is in normal operation (When signal is fed).
Possible Reason:
GLOWING
BLINKING
OFF
Key to LED symbols:
Indication:
Condition: Normal operation
+
The amplifier may not be plugged into the power receptacle.
+
Confirm that the AC outlet works by plugging in another device. If too many amplifiers
are used on one outlet, the building's circuit breaker may trip and shut off power.
+
An amplifier which keeps shutting off may have a serious internal fault. Turn it off,
remove AC power cord and get the amplifier serviced by a qualified technician.
Possible Reason:
+
The amplifier power switch may be off.
+
An overload may cause tripping of main switch on front pannel.
Indication:
Condition: No power to the amplifier
• Trouble Shooting
ON
CLIP
PROTECT
SIGNAL
TEMP
ON
CLIP
PROTECT
SIGNAL
TEMP
+
The installed amplifier, should be well supported by
the side support channels as well as rigidly fixed
on to the rack through the two rack mount side
brackets duly fitted with 'U' type handles, as shown
in the figure below:
+
In order to provide sufficient support base to the
heavy amplifier, it is essential to use the 19" rack
system with side support channels.
+
The amplifier is designed for use in a standard
19"rack with height of 3U units.
+
The 'U' handles are helpful in easy portability of the
amplifier for table top usage. Do not keep the set
on an unstable stand or tripod.
19" Rack Installation
Table Top Usage
Condition: Low output
Condition: No Sound
Condition: NO Sound
LXA-7600
Side Support Channel
LXA-7600
