6. TROUBLESHOOTING
Indicator lights
The XH510, XH5410 and XH7110 have lights that indicate amplifier status.
Blue top
Red end-
LED
panel light
On
Off
On
Alternating between
red and blue
Slow blink
Slow out-of-sync
blink
Quick blink
Quick in-sync
blink
blinks,
blinks,
then pause
then pause
No Audio
• Low or no remote turn-on voltage: check remote connections at the amplifier
and source unit.
• Blown amplifier fuse: replace with a new fast-blow fuse (same rating).
• Power wires not connected: check battery and ground wiring at the amplifier
and check the battery connections.
• Speaker leads shorted: check speaker continuity to ground; it should not show a
common ground.
• Speakers not connected or are blown: check speaker connections at the
amplifier and measure at speakers. Measure coil impedance at amplifier with
speaker wires disconnected.
Blue end-
panel light
Meaning
Off
Amplifier running normally
In thermal protection mode
Off
Over voltage;
reduce the input voltage
Off
Short circuit protection
Off
Repeated shorts detected;
remove the short circuit, wait
5 minutes for error condition
to clear; or clear condition by
removing the main power, for
example, by pulling the fuse.
XH510/XH5410/XH7110
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