Lanzar HTG257 - Manual (Page 21)

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TROUBLE SHOOTING GUIDE
SYMPTOMS CHECK POINTS CURE
NO SOUND Is the power
LED illuminated? Check fuses in amplifier.
Be sure Turn-on lead is connected
AMP NOT
SWITCHING
ON
No power to power wire Repair power wire or connections
No power to remote
wire with receiver on Check connections to radio
Fuse broken Check fuse
NO SOUND
IN ONE
CHANNEL
Check speaker leads Inspect for short circuit or an
open connection.
Check audio input
leads Reverse Left and Right
RCA inputs to determine if it is
occurring before the amp.
Check Tuner/Deck volume level.
Clean contacts on fuse holders.
AMP
TURNING
OFF
MEDIUM/
HIGH
VOLUME
Check speaker load
impedance Be sure proper speakers are used
to ensure impedance
recommendations are observed.
(If you use an Ohmmeter to
check speaker resistance,
please remember that DC
resistance and AC impedance
may not be the same.)