Protection Circuit - Rotel Rb-980Bx Bedienungsanleitung

OPERATION
• Before commencing operation, check to see if all con-
nections are properly made.
• Before turning on the power in the unit, always be sure
to turn down the preamplifier
1. Turn on the preamplifier.
2. Turn on the RB-980BX.
3. Reproduce a desired source, and raise the volume level
on the preamplifier.
HUM AND NOISE
In any high fidelity installation, hum may be caused by the
interconnection of a turntable, tuner and amplifier, and speak-
ers as the result of wiring, different grounding or locations of
components.
If hum is experienced with your unit, disconnect
but the speakers from the unit. Plug in the turntable and if
hum or howling appears, move the turntable away from the
speakers as much as possible.
Note hum may also be induced by defective cable connec-
tions or by running the cables too close to strong AC field.
When your unit picks up noise during the reception of broad-
casts, causes are mostly due to external
fluorescent lamps and house appliances
mostat, or others that may induce the noise.
Either relocating the unit away from the noise sources or using
an improved outdoor antenna may readily solve the problem.
In the event you cannot find the cause, consult your dealer
or a qualified electrician.
SPECIFICATIONS
Continuous Power Output... 120 watts • per channel, min.
DIN Power Output
Peak Current .....
(0.1 ohms, 10,zsec, 1 pulse).
Bridged Power .
Total Harmonic Distortion
(20 to 20,000 Hz)...........
Intermoduration Distortion
(60 Hz : 7 kHz .
Output...
Damping Factor............
Input Sensitivity/
Impedance
Frequency Response..........
5
volume control to minimum.
everything
objects such as
using motor or ther-
RMS both channels driven
8 ohms from 20 to 20,000
with no more than 0.03%
total harmonic distortion.
. 220 watts per channel (1kHz,
4 ohms, THO)
80 A
360 watts (mono) min. RMS
driven into 8 ohms from
20,000 Hz with no more than
0.05% total harmonic distortion.
No more than 0.03% (con-
tinuous rated power output)
No more than 0.03% (con-
tinuous 1/2 rated power output)
No more than 0.03% (1 watt
per channel power output,
8 ohms)
. No more than 0.03% (con-
tinuous rated power output)
No more than 0.03% (con-
tinuous 1/2 rated power output)
No more than 0.03% (1 watt
per channel power output,
8 ohms)
Speaker 8 ohms nominal
1,OOO (20 to 20,000 Hz, 8 ohms)
1 .O V/33 kohms
4 to 100,000 Hz, +0.5 dB,
-3.0 dB

PROTECTION CIRCUIT

The RB-980BX incorporates thermal protector to prevent
accident or damage. If for some reason the protection cir-
cuit is activated,
the speakers, and the protection indicator will light up.
If no sound is produced, the reason may be due to the func-
tioning of the protection circuit. First, turn off the power and
disconnect the plug from the electrical outlet. Then locate and
remedy the cause of the trouble. When the thermal pro-
tector is activated, the unit will start functioning
cally after the temperature is lowered again.
If the protection circuit is activated again despite taking the
above action, cut off the power supply from your entire audio
system and consult your dealer or a qualified electrician.
Note: The protection
a popping noise from being generated upon turning on the
power. No sound is produced for several seconds after
turn-on.
Signal-to-Noise Ratio
(IHF A network) .
into
Power Requirement
Hz
Power Consumption
Dimensions (overall) .
Weight (net).......
20 to
• Specifications and design subject to possible modification
without notice.
• Measured pursuant to the Federal Trade Commission's
Trade Regulation Rule on Power Claims for Amplifiers
(applicable to the U.S.A. only).
there will be a sudden cut-off of sound from
circuit will normally operate to prevent
120 dB
. 120 V/60 Hz, 220 V/50 Hz,
.
240 V/50 Hz or 100 V/50
60 Hz (depending on
destinations)
400 watts
440 (W) x 120 (H) x 323 (D) mm
17-5/16"x 4-23/32"
. 10.2 kg/22.44
automati-
Hz-
x 12-23/32"
lbs.