ROTEL RB-1562 - Manual (Page 9)

9
English
Troubleshooting
Most diffi culties in audio systems are the result of poor or wrong
connections, or improper control settings. If you encounter problems,
isolate the area of the diffi culty, 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-1072
your amplifi er , refer to the
suggestions for the following conditions:
Front Panel Power Indicator Is Not Lit
No main power to the RB-1072 amplifi er . Check AC power
connections at the amplifi er and the AC outlet. Check the front panel
power switch. Make sure that it is set to the ON position. If using 12V
trigger power-on, make sure that a trigger signal is present at rear
panel 12V TRIG IN jack.
No Sound
If the amp is getting AC power, but is producing no sound, check
the Protection Indicator
2
on the front panel. If lit, see below. If
not, check all of your connections and control settings on associated
components. Make sure that your input connections and speaker
connections match your system confi guration.
Protection Indicator Is Lit
The front panel Protection Indicator
2
will light when the RB-1072
amplifi er protection circuits have shut off the amplifi er. Typically, this
occurs only when the amplifi er has overheated, when there is faulty
speaker wiring, or after a period of extreme use. Turn off the system
and wait for the amplifi er to cool.
Then push the front panel power
switch in and out to reset the protection devices. If the problem is
not corrected or reoccurs, there is a problem with the system or the
amplifi er itself.
Specifi cations
Continuous Power Output Continuous Power Output (20-20 kHz, < 0.03%, 8 ohms)
RB-1562 100 watts/canal
RB-1572 250 watts/canal
Total Harmonic Distortion Total Harmonic Distortion (20Hz-20kHz, 8 ohms)
RB-1562 < 0,02 %
RB-1572 < 0,03 %
Intermodulation Distortion Intermodulation Distortion (60 Hz : 7 kHz, 4 :1)
RB-1562 < 0,02 %
RB-1572 < 0,03 %
Frequency Response Frequency Response (± 1 dB)
RB-1562 10 Hz – 40 kHz
RB-1572 10 Hz – 80 kHz
Damping Factor Damping Factor (20 – 20 000 Hz, 8 ohms)
RB-1562 200
RB-1572 400
Speaker Impedance Speaker Impedance 4 ohms minimum
Signal to Noise Ratio Signal to Noise Ratio (IHF A network) 116 dB
Input Impedance/Sensitivity Input Impedance/Sensitivity
RB-1562 8.3 k ohms / 1.2V
RB-1572 9.9 k ohms / 1.25V
Gain Gain 27.9 dB
Power Requirements Power Requirements
U.S. Version 115 volts, 60 Hz
European Version 230 volts, 50 Hz
Power Consumption Power Consumption
RB-1562 130 watts
RB-1572 280 watts
Dimensions Dimensions (W x H x D)
RB-1562 430 x 98 x 324 mm
17 x 3 7 / 8 x 12 3 / 4 ins.
RB-1572 430 x 98 x 324 mm
17 x 3 7 / 8 x 12 3 / 4 ins.
Front Panel Height
RB-1562
2U
RB-1572 3U
Weight (net)
RB-1562 6,5 kg
RB-1572 7,8 kg
All specifications are accurate at the time of printing.
Rotel reserves the right to make improvements without notice.