Rainbow 271052 Installation Manual - page 28
9
Attach red cable with 25 mm
2
diameter directly to the positive terminal (+) of the battery or to the central positive
ground of the HiFi system and run to the amplifier. Make absolutely certain that the main electrical cable of the
central positive ground is secured with a fuse (see below). Insert the other end of the electrical cable into the clamp
„B+“ (6) of the amplifier and tighten clamping screw firmly.
Attach black cable with 25 mm
2
diameter directly to the auto body or to central ground location of the HiFi system
and run to amplifier.
Equip free end of the electrical cable with cable end sleeve and insert into clamp „GND“ (8) of the amplifier.
Tighten clamping screw firmly.
The selected fuse must be sufficient to handle the entire electrical current for the entire audio system. The total
current must therefore be taken into account. Check manufacturer’s data for all devices and determine complete
consumption requirements (if necessary, add all fuse ratings). The resulting sum transferred to fuse should
correspond to the total current in Ampere. This must absolutely be inserted into the main power cable directly
behind the battery (+).
Remote Connection
iPaul DM2000
Run cable with small diameter from car radio or CD player remote terminal to amplifier and attach to amplifier
connection „REM“ (7) using a cable end sleeve.
When switching radio or CD player on or off, the amplifier is switched on/off over soft muting with a one second
delay.
Power On/Control Function through Logo / LED
Powering on of the amplifier is indicated by illuminated logo (15) and the LED PWR (19) on the remote control.
The amplifier powers up with a time delay of approximately one second. Uncontrolled excursions of the
loudspeakers are suppressed by this soft start when powering on the amplifier.
The amplifier will immediately power off in the event of critical under impedance(<1
Ω
), for example, complex
load, short-circuit at the loudspeaker outputs, direct current to loudspeaker moving coils, or overload causing too
high temperatures at the heat sink.
If the logo (15) is blinking, switch amplifier off and examine system for above-mentioned problems. After
repairing any disturbance and/or after a cooling phase from overheating, the amplifier can be reactivated by
repeated on/off switching
.
Frequent powering off of the amplifier for thermal reasons indicates a poor installation location and should be
resolved by moving amplifier to a well-ventilated location. We recommend using the fan module (Part-No.
271090) or the fan and temperature display module (Part-No. 271091). A persistent problem indicates a defect in
the equipment. The amplifier should then be sent in for repair.