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Composition of manual
This manual applies to the GM-5400T and GM-
3400T. However, the illustrations show the GM-
5400T.
There are differences between the GM-5400T
and the GM-3400T . The differences for the GM-
3400T are as follows:
! Fuse: 25 A × 1
! There is no BFC (beat frequency control)
switch.
! There is no BASS BOOST (bass boost level
control) switch
! Suitable specification of speaker. Refer to
About suitable specification of speaker on
page 7.
! Location of Installation holes on the main
unit.
Before connecting/
installing the amplifier
WARNING
! Handling the cord on this product or cords as-
sociated with accessories sold with the pro-
duct may expose you to chemicals listed on
proposition 65 known to the State of California
and other governmental entities to cause can-
cer and birth defects or other reproductive
harm. Wash hands after handling.
! The use of a special red battery and ground
wire RD-223, available separately, is recom-
mended. Connect the battery wire directly to
the car battery positive terminal + and the
ground wire to the car body.
! This unit is for vehicles with a 12 V battery and
negative grounding. Before installing in re-
creational vehicles, trucks or buses, check the
battery voltage.
! Always use a fuse of the rating prescribed.
The use of an improper fuse could result in
overheating and smoke, damage to the pro-
duct and injury, including burns.
! Check the connections of the power supply
and speakers if the fuse of the separately sold
battery wire or the amplifier fuse blows. Deter-
mine and resolve the cause, then replace the
fuse with identical equivalent.
! Do not allow this unit to come into contact
with liquids. Electrical shock could result.
Also, damage to this unit, smoke, and over-
heating could result from contact with liquids.
The surfaces of the amplifier and any attached
speakers may also heat up and cause minor
burns.
! In the event of any abnormality, the power
supply to the amplifier is cut off to prevent
equipment malfunction. If this occurs, switch
the system power OFF and check the power
supply and speaker connections. If you are un-
able to determine the cause, please contact
your dealer.
! Always disconnect the negative * terminal of
the battery beforehand to avoid the risk of
electric shock or short circuit during installa-
tion.
CAUTION
! Always keep the volume low enough so that
you can hear sounds from outside the vehicle.
! Extended use of the car stereo while the en-
gine is at rest or idling may exhaust the bat-
tery.
Important (Serial number)
The serial number is located on the bottom of
this unit. For your own security and convenience,
be sure to record this number on the enclosed
warranty card.
Before you start
En
3
English
Section
01