Front Panel Power Indicator Is Not Lit; Protection Indicator Is Lit - Rotel RB-1090 Bedienungsanleitung

Troubleshooting
Most difficulties in audio systems are the result
of poor or wrong connections, or improper
control settings. If you encounter problems,
isolate the area of the difficulty, check the
control settings, determine the cause of the
fault and make the necessary changes. If you
are unable to get sound from the RB-1090,
refer to the suggestions for the following con-
ditions:
Front Panel Power Indicator
Is Not Lit
No main power to the RB-1090. Check the
front panel
POWER SWITCH
is set to the position. Check AC power
ON
connections at the amplifier and the AC
outlet.
No Sound
If the amp is getting AC power, but is pro-
ducing no sound, check the
on the front panel. If lit, see below.
DICATORS
If not, check all of your connections and con-
trol settings on associated components. Check
the
INPUT SELECTOR SWITCH
back panel to be sure that its setting matches
the type of input you are using.

Protection Indicator Is Lit

The front panel
PROTECTION INDICATORS
when the RB-1090 protection circuits have
shut off the amplifier. Typically, this occurs
only when the ventilation openings are
blocked, when there is faulty speaker wir-
ing, or after a period of extreme use. Turn
off the system and wait for the amp to cool.
Then push the front panel
and out to reset the protection devices. If the
problem is not corrected or reoccurs, there
is a problem with the system or the ampli-
fier itself.
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9
Specifications
Continuous Power Output
(20-20 kHz, < 0.03%):
380 watts/ch into 8 ohms
700 watts/ch into 4 ohms
Total Harmonic Distortion
(20Hz-20kHz, 8 ohms):
< 0.03%
Intermodulation Distortion
(60 Hz : 7 kHz, 4:1):
< 0.03%
Frequency Response (±1 dB):
10Hz-100kHz
Damping Factor (20-20,000 Hz, 8 ohms):
1000
. Make sure that it
Speaker Impedance (combined load):
4 ohms minimum
Signal to Noise Ratio (IHF A network):
125 dB
Input Impedance/Sensitivity:
33 k Ohms/1.8volt
Power Requirements:
-
PROTECTION IN 115 Volts, 60 Hz (USA)
230 Volts, 50 Hz (EC)
Power Consumption:
800 Watts
on the RB-1090
Dimensions (W x H x D):
440 x 240 x 398 mm
17 x 9
3/8
Weight (net):
38 kg, 83.6 lb.
light
All specifications are accurate at the time of
printing.
Rotel reserves the right to make improvements
without notice.
THX and the THX logo are registered trademarks
of Lucasfilm Ltd. All rights reserved.
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